Pigmentation Disorders

Melasma is a complex, long-lasting, acquired dermatologic pigmentation disorder resulting in grey-brown patches that last for more than 3 months. Sun-exposed areas including the nose, cheeks, forehead, and forearms are most likely to be affected.¹ In Southeast Asia, 0.25% to 4% of the population affected by melasma is aged 30 to 40 years.² In particular, melasma is a concern among pregnant women due to increased levels of melanocyte-stimulating hormones (MSHs) and is impacted by genetics, hormonal influence, and exposure to UV light.^3,4 In Pakistan, approximately 46% of women are affected by melasma during pregnancy.^2,5 Although few studies have focused on the clinical approaches to melasma in darker skin types, it continues to disproportionately affect the skin of color population.⁴

The areas of hyperpigmentation seen in melasma exhibit increased deposition of melanin in the epidermis and dermis, but melanocytes are not elevated. However, in areas of hyperpigmentation, the melanocytes are larger and more dendritic and demonstrate an increased level of melanogenesis.⁶ During pregnancy, especially in the third trimester, elevated levels of estrogen, progesterone, and MSH often are found in association with melasma.⁷ Tyrosinase (TYR) activity increases and cellular proliferation is reduced after treatment of melanocytes in culture with β-estradiol.⁸ Sex steroids increase transcription of genes encoding melanogenic enzymes in normal human melanocytes, especially TYR.⁹ These results are consistent with the notable increases in melanin synthesis and TYR activity reported for normal human melanocytes under similar conditions in culture.¹⁰ Because melanocytes contain both cytosolic and nuclear estrogen receptors, melanocytes in patients with melasma may be inherently more sensitive to the stimulatory effects of estrogens and possibly other steroid hormones.¹¹

The current treatment options for melasma have varying levels of success and include topical depigmenting agents such as hydroquinone, tretinoin, azelaic acid, kojic acid, and corticosteroids; dermabrasion; and chemical peels.^12-14 Chemical peels with glycolic acid, salicylic acid, lactic acid, trichloroacetic acid, and phenol, as well as laser therapy, are reliable management options.^13,14 Traditionally, melasma has been treated with a combination of modalities along with photoprotection and trigger avoidance.¹²

The efficacy and safety of the available therapies for melasma are still controversial and require further exploration. In recent years, off-label tranexamic acid (TA) has emerged as a potential therapy for melasma. Although the mechanism of action remains unclear, TA may inhibit melanin synthesis by blocking the interaction between melanocytes and keratinocytes.¹⁵ Tranexamic acid also may reverse the abnormal dermal changes associated with melasma by inhibiting melanogenesis and angiogenesis.¹⁶

Although various therapeutic options exist for melasma, the search for a reliable option in patients with darker skin types continues.¹³ We sought to evaluate the efficacy of TA solution 5% in reducing the severity of melasma in South Asian patients, thereby improving patient outcomes and maximizing patient satisfaction. Topical TA is inexpensive and readily accessible and does not cause systemic side effects. These qualities make it a promising treatment compared to traditional therapies.

Methods

We conducted a randomized controlled trial at Rawalpindi Medical Institute (Punjab, Pakistan). The researchers obtained informed consent for all enrolled patients. Cases were sampled from the original patient population seen at the office using nonprobability consecutive sampling. The sample size was calculated with a 95% CI, margin of error of 9%, and expected percentage of efficacy of 86.1% by using TA solution 5%. South Asian male and female patients aged 20 to 45 years with melasma were included in the analysis. Patients were excluded if they were already taking TA, oral contraceptive pills, or photosensitizing drugs (eg, nonsteroidal anti-inflammatory drugs, tetracyclines, phenytoin, carbamazepine); were pregnant; had chronic kidney disease (creatinine >2.0 mg/dL); had cardiac abnormalities (abnormal electrocardiogram); had hematologic disorders (international normalized ratio >2); or had received another melasma treatment within the last 3 to 6 months.

All enrolled patients underwent a detailed history and physical examination. Patient demographics were subsequently noted, including age, sex, history of diabetes mellitus or hypertension, and duration of melasma. The melasma area and severity index (MASI) score of each patient was calculated at baseline, and a corresponding photograph was taken.

The topical solution was prepared with 5 g of TA dissolved in 10 cc of ethanol at 96 °F, 10 cc of 1,3-butanediol, and distilled water up to 100 cc. The TA solution was applied to the affected areas once daily by the patient for 12 weeks. Each application covered the affected areas completely. Patients were instructed to apply sunscreen with sun protection factor 60 to those same areas for UV protection after 15 minutes of TA application. Biweekly follow-ups were scheduled during the trial, and the MASI score was recorded at these visits. If the mean MASI score was reduced by half after 12 weeks of treatment, then the treatment was considered efficacious with a 95% CI.

The percentage reduction from baseline was calculated as follows: percentage reduction=(baseline score– follow-up score)/baseline score×100.

Statistical Analysis—Data were analyzed in SPSS Statistics 25 (IBM). The quantitative variables of age, duration of melasma, and body mass index were presented as mean (SD). Qualitative variables such as sex, history of diabetes mellitus or hypertension, site of melasma, and efficacy were presented as frequencies and percentages. Mean MASI scores at baseline and 12 weeks posttreatment were compared using a paired t test (P≤.05). Data were stratified for age, sex, history of diabetes mellitus or hypertension, site of melasma, and duration of melasma, and a χ² test was applied to compare efficacy in stratified groups (P≤.05).

Results

Sixty patients were enrolled in the study. Of them, 17 (28.33%) were male, and 43 (71.67%) were female (2:5 ratio). They ranged in age from 20 to 45 years (mean [SD], 31.93 [6.26] years). Thirty-seven patients (61.67%) were aged 31 to 45 years of age (Table 1). The mean (SD) duration of disease was 10.18 (2.10) months. The response to TA was recorded based on patient distribution according to the site of melasma as well as history of diabetes mellitus and hypertension.

Topical TA was found to be efficacious for melasma in 50 (83.33%) patients. The mean (SD) baseline and week 12 MASI scores were 23.15 (5.02) and 12.71 (4.10)(P<.0001), respectively (Table 2). The stratification of efficacy with respect to age, sex, duration of melasma, site of melasma, and history of diabetes mellitus or hypertension is shown in the eTable. The site of melasma was significant with respect to stratification of efficacy. On the forehead, TA was found to be efficacious in 11 patients and nonefficacious in 0 patients (P=.036). In the malar region, it was efficacious in 16 patients and nonefficacious in 1 patient (P=.036). Finally, on the chin, it was efficacious in 23 patients and nonefficacious in 9 patients (P=.036).

Comment

Melasma Presentation and Development—Melasma is a chronic skin condition that more often affects patients with darker skin types. This condition is characterized by hyperpigmentation of skin that is directly exposed to the sun, such as the cheek, nose, forehead, and above the upper lip.¹⁷ Although the mechanism behind how melasma develops is unknown, one theory suggests that UV light can lead to increased plasmin in keratinocytes.¹⁸ This increased plasmin will thereby increase the arachidonic acid and α-MSH, leading to the observed uneven hyperpigmentation that is notable in melasma. Melasma is common in patients using oral contraceptives or expired cosmetic drugs; in those who are pregnant; and in those with liver dysfunction.¹⁸ Melasma has a negative impact on patients’ quality of life because of substantial psychological and social distress. Thus, finding an accessible treatment is imperative.¹⁹

Melasma Management—The most common treatments for melasma have been topical bleaching agents and photoprotection. Combination therapy options include chemical peels, dermabrasion, and laser treatments, though they present with limited efficacy.^17,20 Because melasma focuses on pigmentation correction, topical treatments work to disturb melanocyte pigment production at the enzymatic level.²¹ Tyrosinase is rate limiting in melanin production, as it converts L-tyrosinase to L-3,4-dihydroxyphenylalanine, using copper to interact with L-3,4-dihydroxyphenylalanine as a cofactor in the active site.²² Therefore, tyrosine is a major target for many drugs that have been developed for melasma to decrease melaninization.²¹

Recently, research has focused on the effects of topical, intradermal, and oral TA for melasma.¹⁷ Tranexamic acid most commonly has been used in medicine as a fibrinolytic agent because of its antiplasmin properties. It has been hypothesized that TA can inhibit the release of paracrine melanogenic factors that normally act to stimulate melanocytes.¹⁷ Although studies have supported the safety and efficacy of TA, there remains a lack of clinical studies that are sufficiently powered. No definitive consensus on the use of TA for melasma currently exists, which indicates the need for large-scale, randomized, controlled trials.²³

One trial (N=25) found that TA solution 5% achieved efficacy (>50% reduction in MASI score from baseline) in 86.1% of patients with melasma.²⁴ In another study (N=18), topical TA 5% achieved efficacy (>50% reduction in MASI score) in 86% of patients with melasma.²⁵

Melasma Comorbidities—To determine if certain comorbidities, such as diabetes mellitus or hypertension, influenced the progression of melasma, we stratified the efficacy results for patients with these 2 comorbidities, which showed no significant difference (P=.794 and P=.101, respectively). Thus, the relatively higher prevalence of diabetes mellitus (16 patients) and hypertension (11 patients) did not contribute to the efficacy of TA in lowering MASI scores over the 12-week period, which supports the findings of Doolan and Gupta,²⁶ who investigated the endocrinologic conditions associated with melasma and found no such association with diabetes mellitus or hypertension.

TA Formulations for Melasma—The efficacy of topical TA has been explored in several studies. Six studies with sample sizes of 13 to 50 patients each showed statistically significant differences in MASI scores between baseline and following TA treatment (P<.001).^27-32 Several formulations and regimens were utilized, including TA cream 3% for 12 weeks, TA gel 5% for 12 weeks, TA solution 3% for 12 weeks, TA liposome 5% for 12 weeks, and TA solution 2% for 12 weeks.¹⁸ Additionally, these studies found TA to be effective in limiting dyschromia and decreasing MASI scores. There were no statistically significant differences between formulations and method of application. Topical TA has been found to be just as effective as other treatments for melasma, including intradermal TA injections, topical hydroquinone, and a combination of topical hydroquinone and dexamethasone.¹⁸

Further study of the efficacy of intradermal TA is necessary because many human trials have lacked statistical significance or a control group. Lee et al³² conducted a trial of 100 female patients who received weekly intradermal TA microinjections for 12 weeks. After 8 and 12 weeks, MASI scores decreased significantly (P<.01).³² Similarly, Badran et al³³ observed 60 female patients in 3 trial groups: group A received TA (4 mg/mL) intradermal injections every 2 weeks, group B received TA (10 mg/mL) intradermal injections every 2 weeks, and group C received TA cream 10% twice daily. Although all groups showed improvement in MASI, group B, which had the highest intradermal TA concentration, exhibited the most improvement. Thus, it was determined that intradermal application led to better results, but the cream was still effective.³³

Saki et al³⁴ conducted a randomized, split-face trial of 37 patients comparing the efficacy of intradermal TA and topical hydroquinone. Each group was treated with either monthly intradermal TA injections or nightly hydroquinone for 3 months. After 4 weeks of treatment, TA initially had a greater improvement. However, after 20 weeks, the overall changes were not significant between the 2 groups.³⁴ Pazyar et al³⁵ conducted a randomized, split-face trial of 49 patients comparing the efficacy of intradermal TA and hydroquinone cream. After 24 weeks of biweekly TA injections or twice-daily hydroquinone, there were no statistically significant differences in the decreased MASI scores between treatments.³⁵ Additional large, double-blind, controlled trials are needed to thoroughly assess the role of intradermal TA in comparison to its treatment counterpart of hydroquinone.

Ebrahimi and Naeini²⁹ conducted a 12-week, double-blind, split-phase trial of 50 Iranian melasma patients, which showed that 27.3% of patients rated the improvement in melasma as excellent, 42.4% as good, and 30.3% as fair after using TA solution 3%. Wu et al³⁶ also showed a total melasma improvement rate of 80.9% in 256 patients with long-term oral use of TA. In a study by Kim et al³¹ (N=245), the mean MASI score considerably decreased after topical TA use, with a total response rate of 95.6%. In another study, Atefi et al³⁷ presented significantly increased levels of satisfaction in patients treated with topical TA 5% vs hydroquinone (P=.015).

Melasma in Patients With Darker Skin Types—Special attention must be given to choosing the appropriate medication in melasma patients with darker skin types, as there is an increased risk for postinflammatory hyperpigmentation. Currently, few randomized controlled trials exist that fulfill the criteria of evaluating pharmacologic options for patients with melasma, and even fewer studies solely focus on patients with darker skin types.³⁸ In addition to treatment advances, patients must be educated on the need to avoid sun exposure when possible or to use photoprotection, especially in the South Asian region, where these practices rarely are taught. Our study provided a unique analysis regarding the efficacy of TA solution 5% for the treatment of melasma in patients of South Asian descent. Clinicians can use these findings as a foundation for treating all patients with melasma but particularly those with darker skin types.

Study Limitations—Our study consisted of 60 patients; although our study had more patients than similar trials, larger studies are needed. Additionally, other variables were excluded from our analysis, such as comorbidities beyond diabetes mellitus and hypertension.

Conclusion

This study contributes to the growing field of melasma therapeutics by evaluating the efficacy of using TA solution 5% for the treatment of melasma in South Asian patients with darker skin types. Clinicians may use our study to broaden their treatment options for a common condition while also addressing the lack of clinical options for patients with darker skin types. Further studies investigating the effectiveness of TA in large clinical trials in humans are warranted to understand the efficacy and the risk for any complications.

Melasma is a complex, long-lasting, acquired dermatologic pigmentation disorder resulting in grey-brown patches that last for more than 3 months. Sun-exposed areas including the nose, cheeks, forehead, and forearms are most likely to be affected.¹ In Southeast Asia, 0.25% to 4% of the population affected by melasma is aged 30 to 40 years.² In particular, melasma is a concern among pregnant women due to increased levels of melanocyte-stimulating hormones (MSHs) and is impacted by genetics, hormonal influence, and exposure to UV light.^3,4 In Pakistan, approximately 46% of women are affected by melasma during pregnancy.^2,5 Although few studies have focused on the clinical approaches to melasma in darker skin types, it continues to disproportionately affect the skin of color population.⁴

The areas of hyperpigmentation seen in melasma exhibit increased deposition of melanin in the epidermis and dermis, but melanocytes are not elevated. However, in areas of hyperpigmentation, the melanocytes are larger and more dendritic and demonstrate an increased level of melanogenesis.⁶ During pregnancy, especially in the third trimester, elevated levels of estrogen, progesterone, and MSH often are found in association with melasma.⁷ Tyrosinase (TYR) activity increases and cellular proliferation is reduced after treatment of melanocytes in culture with β-estradiol.⁸ Sex steroids increase transcription of genes encoding melanogenic enzymes in normal human melanocytes, especially TYR.⁹ These results are consistent with the notable increases in melanin synthesis and TYR activity reported for normal human melanocytes under similar conditions in culture.¹⁰ Because melanocytes contain both cytosolic and nuclear estrogen receptors, melanocytes in patients with melasma may be inherently more sensitive to the stimulatory effects of estrogens and possibly other steroid hormones.¹¹

The current treatment options for melasma have varying levels of success and include topical depigmenting agents such as hydroquinone, tretinoin, azelaic acid, kojic acid, and corticosteroids; dermabrasion; and chemical peels.^12-14 Chemical peels with glycolic acid, salicylic acid, lactic acid, trichloroacetic acid, and phenol, as well as laser therapy, are reliable management options.^13,14 Traditionally, melasma has been treated with a combination of modalities along with photoprotection and trigger avoidance.¹²

The efficacy and safety of the available therapies for melasma are still controversial and require further exploration. In recent years, off-label tranexamic acid (TA) has emerged as a potential therapy for melasma. Although the mechanism of action remains unclear, TA may inhibit melanin synthesis by blocking the interaction between melanocytes and keratinocytes.¹⁵ Tranexamic acid also may reverse the abnormal dermal changes associated with melasma by inhibiting melanogenesis and angiogenesis.¹⁶

Although various therapeutic options exist for melasma, the search for a reliable option in patients with darker skin types continues.¹³ We sought to evaluate the efficacy of TA solution 5% in reducing the severity of melasma in South Asian patients, thereby improving patient outcomes and maximizing patient satisfaction. Topical TA is inexpensive and readily accessible and does not cause systemic side effects. These qualities make it a promising treatment compared to traditional therapies.

Methods

We conducted a randomized controlled trial at Rawalpindi Medical Institute (Punjab, Pakistan). The researchers obtained informed consent for all enrolled patients. Cases were sampled from the original patient population seen at the office using nonprobability consecutive sampling. The sample size was calculated with a 95% CI, margin of error of 9%, and expected percentage of efficacy of 86.1% by using TA solution 5%. South Asian male and female patients aged 20 to 45 years with melasma were included in the analysis. Patients were excluded if they were already taking TA, oral contraceptive pills, or photosensitizing drugs (eg, nonsteroidal anti-inflammatory drugs, tetracyclines, phenytoin, carbamazepine); were pregnant; had chronic kidney disease (creatinine >2.0 mg/dL); had cardiac abnormalities (abnormal electrocardiogram); had hematologic disorders (international normalized ratio >2); or had received another melasma treatment within the last 3 to 6 months.

All enrolled patients underwent a detailed history and physical examination. Patient demographics were subsequently noted, including age, sex, history of diabetes mellitus or hypertension, and duration of melasma. The melasma area and severity index (MASI) score of each patient was calculated at baseline, and a corresponding photograph was taken.

The topical solution was prepared with 5 g of TA dissolved in 10 cc of ethanol at 96 °F, 10 cc of 1,3-butanediol, and distilled water up to 100 cc. The TA solution was applied to the affected areas once daily by the patient for 12 weeks. Each application covered the affected areas completely. Patients were instructed to apply sunscreen with sun protection factor 60 to those same areas for UV protection after 15 minutes of TA application. Biweekly follow-ups were scheduled during the trial, and the MASI score was recorded at these visits. If the mean MASI score was reduced by half after 12 weeks of treatment, then the treatment was considered efficacious with a 95% CI.

The percentage reduction from baseline was calculated as follows: percentage reduction=(baseline score– follow-up score)/baseline score×100.

Statistical Analysis—Data were analyzed in SPSS Statistics 25 (IBM). The quantitative variables of age, duration of melasma, and body mass index were presented as mean (SD). Qualitative variables such as sex, history of diabetes mellitus or hypertension, site of melasma, and efficacy were presented as frequencies and percentages. Mean MASI scores at baseline and 12 weeks posttreatment were compared using a paired t test (P≤.05). Data were stratified for age, sex, history of diabetes mellitus or hypertension, site of melasma, and duration of melasma, and a χ² test was applied to compare efficacy in stratified groups (P≤.05).

Results

Sixty patients were enrolled in the study. Of them, 17 (28.33%) were male, and 43 (71.67%) were female (2:5 ratio). They ranged in age from 20 to 45 years (mean [SD], 31.93 [6.26] years). Thirty-seven patients (61.67%) were aged 31 to 45 years of age (Table 1). The mean (SD) duration of disease was 10.18 (2.10) months. The response to TA was recorded based on patient distribution according to the site of melasma as well as history of diabetes mellitus and hypertension.

Topical TA was found to be efficacious for melasma in 50 (83.33%) patients. The mean (SD) baseline and week 12 MASI scores were 23.15 (5.02) and 12.71 (4.10)(P<.0001), respectively (Table 2). The stratification of efficacy with respect to age, sex, duration of melasma, site of melasma, and history of diabetes mellitus or hypertension is shown in the eTable. The site of melasma was significant with respect to stratification of efficacy. On the forehead, TA was found to be efficacious in 11 patients and nonefficacious in 0 patients (P=.036). In the malar region, it was efficacious in 16 patients and nonefficacious in 1 patient (P=.036). Finally, on the chin, it was efficacious in 23 patients and nonefficacious in 9 patients (P=.036).

Comment

Melasma Presentation and Development—Melasma is a chronic skin condition that more often affects patients with darker skin types. This condition is characterized by hyperpigmentation of skin that is directly exposed to the sun, such as the cheek, nose, forehead, and above the upper lip.¹⁷ Although the mechanism behind how melasma develops is unknown, one theory suggests that UV light can lead to increased plasmin in keratinocytes.¹⁸ This increased plasmin will thereby increase the arachidonic acid and α-MSH, leading to the observed uneven hyperpigmentation that is notable in melasma. Melasma is common in patients using oral contraceptives or expired cosmetic drugs; in those who are pregnant; and in those with liver dysfunction.¹⁸ Melasma has a negative impact on patients’ quality of life because of substantial psychological and social distress. Thus, finding an accessible treatment is imperative.¹⁹

Melasma Management—The most common treatments for melasma have been topical bleaching agents and photoprotection. Combination therapy options include chemical peels, dermabrasion, and laser treatments, though they present with limited efficacy.^17,20 Because melasma focuses on pigmentation correction, topical treatments work to disturb melanocyte pigment production at the enzymatic level.²¹ Tyrosinase is rate limiting in melanin production, as it converts L-tyrosinase to L-3,4-dihydroxyphenylalanine, using copper to interact with L-3,4-dihydroxyphenylalanine as a cofactor in the active site.²² Therefore, tyrosine is a major target for many drugs that have been developed for melasma to decrease melaninization.²¹

Recently, research has focused on the effects of topical, intradermal, and oral TA for melasma.¹⁷ Tranexamic acid most commonly has been used in medicine as a fibrinolytic agent because of its antiplasmin properties. It has been hypothesized that TA can inhibit the release of paracrine melanogenic factors that normally act to stimulate melanocytes.¹⁷ Although studies have supported the safety and efficacy of TA, there remains a lack of clinical studies that are sufficiently powered. No definitive consensus on the use of TA for melasma currently exists, which indicates the need for large-scale, randomized, controlled trials.²³

One trial (N=25) found that TA solution 5% achieved efficacy (>50% reduction in MASI score from baseline) in 86.1% of patients with melasma.²⁴ In another study (N=18), topical TA 5% achieved efficacy (>50% reduction in MASI score) in 86% of patients with melasma.²⁵

Melasma Comorbidities—To determine if certain comorbidities, such as diabetes mellitus or hypertension, influenced the progression of melasma, we stratified the efficacy results for patients with these 2 comorbidities, which showed no significant difference (P=.794 and P=.101, respectively). Thus, the relatively higher prevalence of diabetes mellitus (16 patients) and hypertension (11 patients) did not contribute to the efficacy of TA in lowering MASI scores over the 12-week period, which supports the findings of Doolan and Gupta,²⁶ who investigated the endocrinologic conditions associated with melasma and found no such association with diabetes mellitus or hypertension.

TA Formulations for Melasma—The efficacy of topical TA has been explored in several studies. Six studies with sample sizes of 13 to 50 patients each showed statistically significant differences in MASI scores between baseline and following TA treatment (P<.001).^27-32 Several formulations and regimens were utilized, including TA cream 3% for 12 weeks, TA gel 5% for 12 weeks, TA solution 3% for 12 weeks, TA liposome 5% for 12 weeks, and TA solution 2% for 12 weeks.¹⁸ Additionally, these studies found TA to be effective in limiting dyschromia and decreasing MASI scores. There were no statistically significant differences between formulations and method of application. Topical TA has been found to be just as effective as other treatments for melasma, including intradermal TA injections, topical hydroquinone, and a combination of topical hydroquinone and dexamethasone.¹⁸

Further study of the efficacy of intradermal TA is necessary because many human trials have lacked statistical significance or a control group. Lee et al³² conducted a trial of 100 female patients who received weekly intradermal TA microinjections for 12 weeks. After 8 and 12 weeks, MASI scores decreased significantly (P<.01).³² Similarly, Badran et al³³ observed 60 female patients in 3 trial groups: group A received TA (4 mg/mL) intradermal injections every 2 weeks, group B received TA (10 mg/mL) intradermal injections every 2 weeks, and group C received TA cream 10% twice daily. Although all groups showed improvement in MASI, group B, which had the highest intradermal TA concentration, exhibited the most improvement. Thus, it was determined that intradermal application led to better results, but the cream was still effective.³³

Saki et al³⁴ conducted a randomized, split-face trial of 37 patients comparing the efficacy of intradermal TA and topical hydroquinone. Each group was treated with either monthly intradermal TA injections or nightly hydroquinone for 3 months. After 4 weeks of treatment, TA initially had a greater improvement. However, after 20 weeks, the overall changes were not significant between the 2 groups.³⁴ Pazyar et al³⁵ conducted a randomized, split-face trial of 49 patients comparing the efficacy of intradermal TA and hydroquinone cream. After 24 weeks of biweekly TA injections or twice-daily hydroquinone, there were no statistically significant differences in the decreased MASI scores between treatments.³⁵ Additional large, double-blind, controlled trials are needed to thoroughly assess the role of intradermal TA in comparison to its treatment counterpart of hydroquinone.

Ebrahimi and Naeini²⁹ conducted a 12-week, double-blind, split-phase trial of 50 Iranian melasma patients, which showed that 27.3% of patients rated the improvement in melasma as excellent, 42.4% as good, and 30.3% as fair after using TA solution 3%. Wu et al³⁶ also showed a total melasma improvement rate of 80.9% in 256 patients with long-term oral use of TA. In a study by Kim et al³¹ (N=245), the mean MASI score considerably decreased after topical TA use, with a total response rate of 95.6%. In another study, Atefi et al³⁷ presented significantly increased levels of satisfaction in patients treated with topical TA 5% vs hydroquinone (P=.015).

Melasma in Patients With Darker Skin Types—Special attention must be given to choosing the appropriate medication in melasma patients with darker skin types, as there is an increased risk for postinflammatory hyperpigmentation. Currently, few randomized controlled trials exist that fulfill the criteria of evaluating pharmacologic options for patients with melasma, and even fewer studies solely focus on patients with darker skin types.³⁸ In addition to treatment advances, patients must be educated on the need to avoid sun exposure when possible or to use photoprotection, especially in the South Asian region, where these practices rarely are taught. Our study provided a unique analysis regarding the efficacy of TA solution 5% for the treatment of melasma in patients of South Asian descent. Clinicians can use these findings as a foundation for treating all patients with melasma but particularly those with darker skin types.

Study Limitations—Our study consisted of 60 patients; although our study had more patients than similar trials, larger studies are needed. Additionally, other variables were excluded from our analysis, such as comorbidities beyond diabetes mellitus and hypertension.

Conclusion

This study contributes to the growing field of melasma therapeutics by evaluating the efficacy of using TA solution 5% for the treatment of melasma in South Asian patients with darker skin types. Clinicians may use our study to broaden their treatment options for a common condition while also addressing the lack of clinical options for patients with darker skin types. Further studies investigating the effectiveness of TA in large clinical trials in humans are warranted to understand the efficacy and the risk for any complications.

Melasma is a complex, long-lasting, acquired dermatologic pigmentation disorder resulting in grey-brown patches that last for more than 3 months. Sun-exposed areas including the nose, cheeks, forehead, and forearms are most likely to be affected.¹ In Southeast Asia, 0.25% to 4% of the population affected by melasma is aged 30 to 40 years.² In particular, melasma is a concern among pregnant women due to increased levels of melanocyte-stimulating hormones (MSHs) and is impacted by genetics, hormonal influence, and exposure to UV light.^3,4 In Pakistan, approximately 46% of women are affected by melasma during pregnancy.^2,5 Although few studies have focused on the clinical approaches to melasma in darker skin types, it continues to disproportionately affect the skin of color population.⁴

The areas of hyperpigmentation seen in melasma exhibit increased deposition of melanin in the epidermis and dermis, but melanocytes are not elevated. However, in areas of hyperpigmentation, the melanocytes are larger and more dendritic and demonstrate an increased level of melanogenesis.⁶ During pregnancy, especially in the third trimester, elevated levels of estrogen, progesterone, and MSH often are found in association with melasma.⁷ Tyrosinase (TYR) activity increases and cellular proliferation is reduced after treatment of melanocytes in culture with β-estradiol.⁸ Sex steroids increase transcription of genes encoding melanogenic enzymes in normal human melanocytes, especially TYR.⁹ These results are consistent with the notable increases in melanin synthesis and TYR activity reported for normal human melanocytes under similar conditions in culture.¹⁰ Because melanocytes contain both cytosolic and nuclear estrogen receptors, melanocytes in patients with melasma may be inherently more sensitive to the stimulatory effects of estrogens and possibly other steroid hormones.¹¹

The current treatment options for melasma have varying levels of success and include topical depigmenting agents such as hydroquinone, tretinoin, azelaic acid, kojic acid, and corticosteroids; dermabrasion; and chemical peels.^12-14 Chemical peels with glycolic acid, salicylic acid, lactic acid, trichloroacetic acid, and phenol, as well as laser therapy, are reliable management options.^13,14 Traditionally, melasma has been treated with a combination of modalities along with photoprotection and trigger avoidance.¹²

The efficacy and safety of the available therapies for melasma are still controversial and require further exploration. In recent years, off-label tranexamic acid (TA) has emerged as a potential therapy for melasma. Although the mechanism of action remains unclear, TA may inhibit melanin synthesis by blocking the interaction between melanocytes and keratinocytes.¹⁵ Tranexamic acid also may reverse the abnormal dermal changes associated with melasma by inhibiting melanogenesis and angiogenesis.¹⁶

Although various therapeutic options exist for melasma, the search for a reliable option in patients with darker skin types continues.¹³ We sought to evaluate the efficacy of TA solution 5% in reducing the severity of melasma in South Asian patients, thereby improving patient outcomes and maximizing patient satisfaction. Topical TA is inexpensive and readily accessible and does not cause systemic side effects. These qualities make it a promising treatment compared to traditional therapies.

Methods

We conducted a randomized controlled trial at Rawalpindi Medical Institute (Punjab, Pakistan). The researchers obtained informed consent for all enrolled patients. Cases were sampled from the original patient population seen at the office using nonprobability consecutive sampling. The sample size was calculated with a 95% CI, margin of error of 9%, and expected percentage of efficacy of 86.1% by using TA solution 5%. South Asian male and female patients aged 20 to 45 years with melasma were included in the analysis. Patients were excluded if they were already taking TA, oral contraceptive pills, or photosensitizing drugs (eg, nonsteroidal anti-inflammatory drugs, tetracyclines, phenytoin, carbamazepine); were pregnant; had chronic kidney disease (creatinine >2.0 mg/dL); had cardiac abnormalities (abnormal electrocardiogram); had hematologic disorders (international normalized ratio >2); or had received another melasma treatment within the last 3 to 6 months.

All enrolled patients underwent a detailed history and physical examination. Patient demographics were subsequently noted, including age, sex, history of diabetes mellitus or hypertension, and duration of melasma. The melasma area and severity index (MASI) score of each patient was calculated at baseline, and a corresponding photograph was taken.

The topical solution was prepared with 5 g of TA dissolved in 10 cc of ethanol at 96 °F, 10 cc of 1,3-butanediol, and distilled water up to 100 cc. The TA solution was applied to the affected areas once daily by the patient for 12 weeks. Each application covered the affected areas completely. Patients were instructed to apply sunscreen with sun protection factor 60 to those same areas for UV protection after 15 minutes of TA application. Biweekly follow-ups were scheduled during the trial, and the MASI score was recorded at these visits. If the mean MASI score was reduced by half after 12 weeks of treatment, then the treatment was considered efficacious with a 95% CI.

The percentage reduction from baseline was calculated as follows: percentage reduction=(baseline score– follow-up score)/baseline score×100.

Statistical Analysis—Data were analyzed in SPSS Statistics 25 (IBM). The quantitative variables of age, duration of melasma, and body mass index were presented as mean (SD). Qualitative variables such as sex, history of diabetes mellitus or hypertension, site of melasma, and efficacy were presented as frequencies and percentages. Mean MASI scores at baseline and 12 weeks posttreatment were compared using a paired t test (P≤.05). Data were stratified for age, sex, history of diabetes mellitus or hypertension, site of melasma, and duration of melasma, and a χ² test was applied to compare efficacy in stratified groups (P≤.05).

Results

Sixty patients were enrolled in the study. Of them, 17 (28.33%) were male, and 43 (71.67%) were female (2:5 ratio). They ranged in age from 20 to 45 years (mean [SD], 31.93 [6.26] years). Thirty-seven patients (61.67%) were aged 31 to 45 years of age (Table 1). The mean (SD) duration of disease was 10.18 (2.10) months. The response to TA was recorded based on patient distribution according to the site of melasma as well as history of diabetes mellitus and hypertension.

Topical TA was found to be efficacious for melasma in 50 (83.33%) patients. The mean (SD) baseline and week 12 MASI scores were 23.15 (5.02) and 12.71 (4.10)(P<.0001), respectively (Table 2). The stratification of efficacy with respect to age, sex, duration of melasma, site of melasma, and history of diabetes mellitus or hypertension is shown in the eTable. The site of melasma was significant with respect to stratification of efficacy. On the forehead, TA was found to be efficacious in 11 patients and nonefficacious in 0 patients (P=.036). In the malar region, it was efficacious in 16 patients and nonefficacious in 1 patient (P=.036). Finally, on the chin, it was efficacious in 23 patients and nonefficacious in 9 patients (P=.036).

Comment

Melasma Presentation and Development—Melasma is a chronic skin condition that more often affects patients with darker skin types. This condition is characterized by hyperpigmentation of skin that is directly exposed to the sun, such as the cheek, nose, forehead, and above the upper lip.¹⁷ Although the mechanism behind how melasma develops is unknown, one theory suggests that UV light can lead to increased plasmin in keratinocytes.¹⁸ This increased plasmin will thereby increase the arachidonic acid and α-MSH, leading to the observed uneven hyperpigmentation that is notable in melasma. Melasma is common in patients using oral contraceptives or expired cosmetic drugs; in those who are pregnant; and in those with liver dysfunction.¹⁸ Melasma has a negative impact on patients’ quality of life because of substantial psychological and social distress. Thus, finding an accessible treatment is imperative.¹⁹

Melasma Management—The most common treatments for melasma have been topical bleaching agents and photoprotection. Combination therapy options include chemical peels, dermabrasion, and laser treatments, though they present with limited efficacy.^17,20 Because melasma focuses on pigmentation correction, topical treatments work to disturb melanocyte pigment production at the enzymatic level.²¹ Tyrosinase is rate limiting in melanin production, as it converts L-tyrosinase to L-3,4-dihydroxyphenylalanine, using copper to interact with L-3,4-dihydroxyphenylalanine as a cofactor in the active site.²² Therefore, tyrosine is a major target for many drugs that have been developed for melasma to decrease melaninization.²¹

Recently, research has focused on the effects of topical, intradermal, and oral TA for melasma.¹⁷ Tranexamic acid most commonly has been used in medicine as a fibrinolytic agent because of its antiplasmin properties. It has been hypothesized that TA can inhibit the release of paracrine melanogenic factors that normally act to stimulate melanocytes.¹⁷ Although studies have supported the safety and efficacy of TA, there remains a lack of clinical studies that are sufficiently powered. No definitive consensus on the use of TA for melasma currently exists, which indicates the need for large-scale, randomized, controlled trials.²³

One trial (N=25) found that TA solution 5% achieved efficacy (>50% reduction in MASI score from baseline) in 86.1% of patients with melasma.²⁴ In another study (N=18), topical TA 5% achieved efficacy (>50% reduction in MASI score) in 86% of patients with melasma.²⁵

Melasma Comorbidities—To determine if certain comorbidities, such as diabetes mellitus or hypertension, influenced the progression of melasma, we stratified the efficacy results for patients with these 2 comorbidities, which showed no significant difference (P=.794 and P=.101, respectively). Thus, the relatively higher prevalence of diabetes mellitus (16 patients) and hypertension (11 patients) did not contribute to the efficacy of TA in lowering MASI scores over the 12-week period, which supports the findings of Doolan and Gupta,²⁶ who investigated the endocrinologic conditions associated with melasma and found no such association with diabetes mellitus or hypertension.

TA Formulations for Melasma—The efficacy of topical TA has been explored in several studies. Six studies with sample sizes of 13 to 50 patients each showed statistically significant differences in MASI scores between baseline and following TA treatment (P<.001).^27-32 Several formulations and regimens were utilized, including TA cream 3% for 12 weeks, TA gel 5% for 12 weeks, TA solution 3% for 12 weeks, TA liposome 5% for 12 weeks, and TA solution 2% for 12 weeks.¹⁸ Additionally, these studies found TA to be effective in limiting dyschromia and decreasing MASI scores. There were no statistically significant differences between formulations and method of application. Topical TA has been found to be just as effective as other treatments for melasma, including intradermal TA injections, topical hydroquinone, and a combination of topical hydroquinone and dexamethasone.¹⁸

Further study of the efficacy of intradermal TA is necessary because many human trials have lacked statistical significance or a control group. Lee et al³² conducted a trial of 100 female patients who received weekly intradermal TA microinjections for 12 weeks. After 8 and 12 weeks, MASI scores decreased significantly (P<.01).³² Similarly, Badran et al³³ observed 60 female patients in 3 trial groups: group A received TA (4 mg/mL) intradermal injections every 2 weeks, group B received TA (10 mg/mL) intradermal injections every 2 weeks, and group C received TA cream 10% twice daily. Although all groups showed improvement in MASI, group B, which had the highest intradermal TA concentration, exhibited the most improvement. Thus, it was determined that intradermal application led to better results, but the cream was still effective.³³

Saki et al³⁴ conducted a randomized, split-face trial of 37 patients comparing the efficacy of intradermal TA and topical hydroquinone. Each group was treated with either monthly intradermal TA injections or nightly hydroquinone for 3 months. After 4 weeks of treatment, TA initially had a greater improvement. However, after 20 weeks, the overall changes were not significant between the 2 groups.³⁴ Pazyar et al³⁵ conducted a randomized, split-face trial of 49 patients comparing the efficacy of intradermal TA and hydroquinone cream. After 24 weeks of biweekly TA injections or twice-daily hydroquinone, there were no statistically significant differences in the decreased MASI scores between treatments.³⁵ Additional large, double-blind, controlled trials are needed to thoroughly assess the role of intradermal TA in comparison to its treatment counterpart of hydroquinone.

Ebrahimi and Naeini²⁹ conducted a 12-week, double-blind, split-phase trial of 50 Iranian melasma patients, which showed that 27.3% of patients rated the improvement in melasma as excellent, 42.4% as good, and 30.3% as fair after using TA solution 3%. Wu et al³⁶ also showed a total melasma improvement rate of 80.9% in 256 patients with long-term oral use of TA. In a study by Kim et al³¹ (N=245), the mean MASI score considerably decreased after topical TA use, with a total response rate of 95.6%. In another study, Atefi et al³⁷ presented significantly increased levels of satisfaction in patients treated with topical TA 5% vs hydroquinone (P=.015).

Melasma in Patients With Darker Skin Types—Special attention must be given to choosing the appropriate medication in melasma patients with darker skin types, as there is an increased risk for postinflammatory hyperpigmentation. Currently, few randomized controlled trials exist that fulfill the criteria of evaluating pharmacologic options for patients with melasma, and even fewer studies solely focus on patients with darker skin types.³⁸ In addition to treatment advances, patients must be educated on the need to avoid sun exposure when possible or to use photoprotection, especially in the South Asian region, where these practices rarely are taught. Our study provided a unique analysis regarding the efficacy of TA solution 5% for the treatment of melasma in patients of South Asian descent. Clinicians can use these findings as a foundation for treating all patients with melasma but particularly those with darker skin types.

Study Limitations—Our study consisted of 60 patients; although our study had more patients than similar trials, larger studies are needed. Additionally, other variables were excluded from our analysis, such as comorbidities beyond diabetes mellitus and hypertension.

Conclusion

This study contributes to the growing field of melasma therapeutics by evaluating the efficacy of using TA solution 5% for the treatment of melasma in South Asian patients with darker skin types. Clinicians may use our study to broaden their treatment options for a common condition while also addressing the lack of clinical options for patients with darker skin types. Further studies investigating the effectiveness of TA in large clinical trials in humans are warranted to understand the efficacy and the risk for any complications.

A year after celebrating the approval of the first treatment for repigmentation of vitiligo, dermatologists describe how topical ruxolitinib has advanced the outlook for patients with the disease and what’s next in the pipeline.

The Food and Drug Administration approved the cream formulation of ruxolitinib (Opzelura), a JAK inhibitor, for repigmentation of nonsegmental vitiligo in July 2022 for people aged 12 years and older.

Raj Chovatiya, MD, PhD, assistant professor of dermatology at Northwestern University, Chicago, said that he likes to use ruxolitinib cream in combination with other treatments.

Dr. Chovatiya

“In the real world with vitiligo patients, we’re oftentimes doing combinatorial therapy anyway. So phototherapy, specifically, narrow-band UVB, is something that we have a lot of clinical evidence for over the years, and it’s a modality that can combine with topical steroids and topical calcineurin inhibitors.”

He said trials to study combinations will yield better guidance on optimal use of ruxolitinib cream. “In general, vitiligo patients can really benefit from phototherapy,” he said in an interview. (Labeling recommends against combination with other JAK inhibitors, biologics, or potent immunosuppressants, such as azathioprine or cyclosporine.)

This first year has shown that ruxolitinib is an effective option, but counseling patients to expect slow improvement is important so that patients stick with it, he noted.

Documenting what treatments patients with vitiligo have used before is important, he said, as is counseling patients that ruxolitinib is approved only for use on up to 10% of a person’s body surface area. (Product labeling recommends that a thin layer be applied twice a day to affected areas up to 10% of body surface area.)

Ruxolitinib has brought a “louder voice” to vitiligo and has opened up options for patients with the disease, Dr. Chovatiya said. “Having the ability to topically treat people who have very extensive disease really gives us a lot more flexibility than we have had before.”
 

Good experiences with payers at safety-net hospital

Candrice R. Heath, MD, assistant professor of dermatology at Temple University, Philadelphia, said that real-world experience with topical ruxolitinib will be more evident after its been on the market for 18-24 months.

Dr. Heath said she, too, encourages use of narrow-band UVB phototherapy in conjunction with the treatment.

From an insurance reimbursement standpoint, she said that she is glad that there have been fewer hurdles in getting ruxolitinib to patients than she has experienced with other medications.

In her safety-net hospital, she told this news organization, she sees patients with many types of insurance, but most have Medicaid. “So, I’m always expecting the step therapies, denials, pushbacks, etc.,” she said. But the path has been smoother for ruxolitinib coverage, she noted.

Her colleagues are committed to documenting everything the patient has tried, she added, and that helps with prior authorization.

Dr. Heath said that pointing out to insurers that ruxolitinib is the only approved treatment for repigmentation helps facilitate coverage.

“The science is advancing, and I’m happy to be practicing during a time when we actually have something approved for vitiligo,” she said. But she pointed out that phototherapy often is not covered for vitiligo, “which is horrible, when it is readily approved for psoriasis and atopic dermatitis.”

To document progress, Dr. Heath said that she always takes photographs of her patients with vitiligo because “the pictures remind us how far we have come.”
 

Data spotlight success in adolescents

Data from two trials give a clinical picture of the drug’s safety and efficacy in younger patients.

Adolescents had particularly good results in the first year with ruxolitinib, according to pooled phase 3 data from TRuE-V1 and TRuE-V2, this news organization reported.

The findings, presented at the 25th World Congress of Dermatology in Singapore, indicate that more than half of the participants achieved at least a 50% improvement from baseline in the total Vitiligo Area Scoring Index (T-VASI50) at 52 weeks.

The percentages of young patients aged 12-17 years taking twice-daily ruxolitinib who achieved T-VASI 50 at weeks 12, 24, and 52 were 11.5%, 26.9%, and 57.7%, respectively. The corresponding percentages for all in the study population were 10.7%, 22.7%, and 44.4%, respectively.

At the meeting, the presenter, Julien Seneschal, MD, PhD, professor of dermatology and head of the vitiligo and pigmentary disorders clinic at the University of Bordeaux, France, said, “This suggests that younger patients can respond better to the treatment.” He noted, however, that there were few adolescents in the studies.
 

New excitement in the field

Daniel Gutierrez, MD, assistant professor of dermatology at New York University, said the treatment has brought new excitement to the field.

“Patients with vitiligo are very motivated to treat their disease,” he said, because it typically is on the face and other highly visual areas, which can affect their overall perception of self.

NYU Langone Health

Previously, he noted in an interview, the only FDA-approved treatment was monobenzone, but that was for depigmentation rather than repigmentation.

Otherwise, treatments were being used off label, and patients were receiving compounded formulations that often weren’t covered by insurance and often had shorter shelf life.

He said that he still occasionally gets denials from payers who consider vitiligo a cosmetic condition.

“I’ve had more luck with insurance, at least in the New York State area.” He added that sometimes payers require use of a topical calcineurin inhibitor for about 12 weeks before they will cover ruxolitinib.

Dr. Gutierrez also recommends using phototherapy with topical ruxolitinib “because they work on slightly different pathways.”

When he starts patients on a new therapy such as ruxolitinib, he asks them to come back in 3 months, and often by then, progress is evident. Facial areas show the most response, he said, while hands and feet are less likely to show significant improvement.

He said that it’s important for physicians and patients to know that improvements can take weeks or months to be noticeable. “I tell patients not to give up,” he added.

Showing the patients pictures from the current appointment and comparing them with pictures from previous appointments can help them better understand their progress, he said.
 

Lead investigator adds observations

David Rosmarin, MD, chair of the department of dermatology at Indiana University, Indianapolis, was the lead investigator of the pivotal TruE-V1 and TruE-V2 trials for vitiligo. In that role, he has been treating vitiligo patients with topical ruxolitinib since 2015.

In an interview, he said that many patients “don’t hit their optimal results at 3 months, 6 months, even the year mark. With continued use, many can see continued benefit.”

Other patients, he said, don’t respond within the first 6 months but with continued use may eventually respond, he said.

“Unfortunately, we have no way of knowing, based on clinical characteristics or baseline demographics, whether a patient will be a delayed responder or not or an early responder,” Dr. Rosmarin added.

He provided several observations about people who have stopped taking the medication.

“When people stop,” he said, “some maintain their response, but some start to depigment again. Again, we have no way of predicting who will be in which category.”

He said that once patients have hit their desired response, he usually advises them to taper down to maybe twice a week or to stop treatment, but if they see any recurrence, they should start reusing the medicine.

“We have some patients who have gone 6 or 7 years now before they had a recurrence, but others may start to depigment again in 2 to 3 months,” Dr. Rosmarin said.

As for phototherapy, he said, the combination with topical ruxolitinib is being studied.

“We think the combination is synergistic and better than either alone, but we’re still waiting for data to prove that,” he said.

In his practice, he offers patients the option either to use just ruxolitinib cream or the combination early on. Many patients, because of convenience, say they’ll first try the cream to see if that works.

“The challenge with light [therapy] is that it can be very inconvenient,” he said. Patients have to live close to a phototherapy unit to receive therapy 2-3 times a week or have a phototherapy product in their home.
 

Next in the pipeline

Experts say the progress doesn’t stop with ruxolitinib cream. Current trials of several medications show there’s more to come for patients with vitiligo.

Dr. Chovatiya said that next up may be oral ritlecitinib (Litfulo), a JAK inhibitor that was approved for severe alopecia areata in June for people aged 12 years and older. Phase 2 results have been published for its use with vitiligo.

“This would be an oral medication that may be able to help people with much more extensive disease as far as vitiligo goes,” he said, adding that he expects approval for a vitiligo indication within a few years.

He pointed out that longer-term safety data will be available because it is already on the market for alopecia.

Upadacitinib (Rinvoq), an oral JAK inhibitor, is approved for atopic dermatitis but is being studied for vitiligo as well, he noted. “I’m very excited to see what that holds for patients as well,” Dr. Chovatiya said.

Dr. Gutierrez said that he is excited about oral JAK inhibitors but sees potential in finding new ways to transplant melanocytes into areas where there are none.

The pigmentation field has seen new energy since last year’s approval, he said, particularly among people of color.

“We have new options for vitiligo that were lacking compared with other conditions, such as atopic dermatitis and psoriasis,” he said. “Hopefully, there will be more promising breakthroughs.”

Dr. Rosmarin is the chief investigator for the pivotal trials that led to FDA approval of ruxolitinib. He disclosed ties with AbbVie, Abcuro, AltruBio, Amgen, Arena, Boehringer Ingelheim, Bristol-Meyers Squibb, Celgene, Concert, CSL Behring, Dermavant, Dermira, Galderma, Incyte, Janssen, Kyowa Kirin, Lilly, Merck, Novartis, Pfizer, Regeneron, Revolo Biotherapeutics, Sanofi, Sun Pharmaceuticals, UCB, and Viela Bio. Dr. Chovatiya disclosed ties with AbbVie, Arcutis, Arena, Argenx, Beiersdorf, Bristol-Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, LEO Pharma, L’Oréal, National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB. Dr. Heath and Dr. Gutierrez report no relevant financial relationships.

A version of this article appeared on Medscape.com.

A year after celebrating the approval of the first treatment for repigmentation of vitiligo, dermatologists describe how topical ruxolitinib has advanced the outlook for patients with the disease and what’s next in the pipeline.

The Food and Drug Administration approved the cream formulation of ruxolitinib (Opzelura), a JAK inhibitor, for repigmentation of nonsegmental vitiligo in July 2022 for people aged 12 years and older.

Raj Chovatiya, MD, PhD, assistant professor of dermatology at Northwestern University, Chicago, said that he likes to use ruxolitinib cream in combination with other treatments.

Dr. Chovatiya

“In the real world with vitiligo patients, we’re oftentimes doing combinatorial therapy anyway. So phototherapy, specifically, narrow-band UVB, is something that we have a lot of clinical evidence for over the years, and it’s a modality that can combine with topical steroids and topical calcineurin inhibitors.”

He said trials to study combinations will yield better guidance on optimal use of ruxolitinib cream. “In general, vitiligo patients can really benefit from phototherapy,” he said in an interview. (Labeling recommends against combination with other JAK inhibitors, biologics, or potent immunosuppressants, such as azathioprine or cyclosporine.)

This first year has shown that ruxolitinib is an effective option, but counseling patients to expect slow improvement is important so that patients stick with it, he noted.

Documenting what treatments patients with vitiligo have used before is important, he said, as is counseling patients that ruxolitinib is approved only for use on up to 10% of a person’s body surface area. (Product labeling recommends that a thin layer be applied twice a day to affected areas up to 10% of body surface area.)

Ruxolitinib has brought a “louder voice” to vitiligo and has opened up options for patients with the disease, Dr. Chovatiya said. “Having the ability to topically treat people who have very extensive disease really gives us a lot more flexibility than we have had before.”
 

Good experiences with payers at safety-net hospital

Candrice R. Heath, MD, assistant professor of dermatology at Temple University, Philadelphia, said that real-world experience with topical ruxolitinib will be more evident after its been on the market for 18-24 months.

Dr. Heath said she, too, encourages use of narrow-band UVB phototherapy in conjunction with the treatment.

From an insurance reimbursement standpoint, she said that she is glad that there have been fewer hurdles in getting ruxolitinib to patients than she has experienced with other medications.

In her safety-net hospital, she told this news organization, she sees patients with many types of insurance, but most have Medicaid. “So, I’m always expecting the step therapies, denials, pushbacks, etc.,” she said. But the path has been smoother for ruxolitinib coverage, she noted.

Her colleagues are committed to documenting everything the patient has tried, she added, and that helps with prior authorization.

Dr. Heath said that pointing out to insurers that ruxolitinib is the only approved treatment for repigmentation helps facilitate coverage.

“The science is advancing, and I’m happy to be practicing during a time when we actually have something approved for vitiligo,” she said. But she pointed out that phototherapy often is not covered for vitiligo, “which is horrible, when it is readily approved for psoriasis and atopic dermatitis.”

To document progress, Dr. Heath said that she always takes photographs of her patients with vitiligo because “the pictures remind us how far we have come.”
 

Data spotlight success in adolescents

Data from two trials give a clinical picture of the drug’s safety and efficacy in younger patients.

Adolescents had particularly good results in the first year with ruxolitinib, according to pooled phase 3 data from TRuE-V1 and TRuE-V2, this news organization reported.

The findings, presented at the 25th World Congress of Dermatology in Singapore, indicate that more than half of the participants achieved at least a 50% improvement from baseline in the total Vitiligo Area Scoring Index (T-VASI50) at 52 weeks.

The percentages of young patients aged 12-17 years taking twice-daily ruxolitinib who achieved T-VASI 50 at weeks 12, 24, and 52 were 11.5%, 26.9%, and 57.7%, respectively. The corresponding percentages for all in the study population were 10.7%, 22.7%, and 44.4%, respectively.

At the meeting, the presenter, Julien Seneschal, MD, PhD, professor of dermatology and head of the vitiligo and pigmentary disorders clinic at the University of Bordeaux, France, said, “This suggests that younger patients can respond better to the treatment.” He noted, however, that there were few adolescents in the studies.
 

New excitement in the field

Daniel Gutierrez, MD, assistant professor of dermatology at New York University, said the treatment has brought new excitement to the field.

“Patients with vitiligo are very motivated to treat their disease,” he said, because it typically is on the face and other highly visual areas, which can affect their overall perception of self.

NYU Langone Health

Previously, he noted in an interview, the only FDA-approved treatment was monobenzone, but that was for depigmentation rather than repigmentation.

Otherwise, treatments were being used off label, and patients were receiving compounded formulations that often weren’t covered by insurance and often had shorter shelf life.

He said that he still occasionally gets denials from payers who consider vitiligo a cosmetic condition.

“I’ve had more luck with insurance, at least in the New York State area.” He added that sometimes payers require use of a topical calcineurin inhibitor for about 12 weeks before they will cover ruxolitinib.

Dr. Gutierrez also recommends using phototherapy with topical ruxolitinib “because they work on slightly different pathways.”

When he starts patients on a new therapy such as ruxolitinib, he asks them to come back in 3 months, and often by then, progress is evident. Facial areas show the most response, he said, while hands and feet are less likely to show significant improvement.

He said that it’s important for physicians and patients to know that improvements can take weeks or months to be noticeable. “I tell patients not to give up,” he added.

Showing the patients pictures from the current appointment and comparing them with pictures from previous appointments can help them better understand their progress, he said.
 

Lead investigator adds observations

David Rosmarin, MD, chair of the department of dermatology at Indiana University, Indianapolis, was the lead investigator of the pivotal TruE-V1 and TruE-V2 trials for vitiligo. In that role, he has been treating vitiligo patients with topical ruxolitinib since 2015.

In an interview, he said that many patients “don’t hit their optimal results at 3 months, 6 months, even the year mark. With continued use, many can see continued benefit.”

Other patients, he said, don’t respond within the first 6 months but with continued use may eventually respond, he said.

“Unfortunately, we have no way of knowing, based on clinical characteristics or baseline demographics, whether a patient will be a delayed responder or not or an early responder,” Dr. Rosmarin added.

He provided several observations about people who have stopped taking the medication.

“When people stop,” he said, “some maintain their response, but some start to depigment again. Again, we have no way of predicting who will be in which category.”

He said that once patients have hit their desired response, he usually advises them to taper down to maybe twice a week or to stop treatment, but if they see any recurrence, they should start reusing the medicine.

“We have some patients who have gone 6 or 7 years now before they had a recurrence, but others may start to depigment again in 2 to 3 months,” Dr. Rosmarin said.

As for phototherapy, he said, the combination with topical ruxolitinib is being studied.

“We think the combination is synergistic and better than either alone, but we’re still waiting for data to prove that,” he said.

In his practice, he offers patients the option either to use just ruxolitinib cream or the combination early on. Many patients, because of convenience, say they’ll first try the cream to see if that works.

“The challenge with light [therapy] is that it can be very inconvenient,” he said. Patients have to live close to a phototherapy unit to receive therapy 2-3 times a week or have a phototherapy product in their home.
 

Next in the pipeline

Experts say the progress doesn’t stop with ruxolitinib cream. Current trials of several medications show there’s more to come for patients with vitiligo.

Dr. Chovatiya said that next up may be oral ritlecitinib (Litfulo), a JAK inhibitor that was approved for severe alopecia areata in June for people aged 12 years and older. Phase 2 results have been published for its use with vitiligo.

“This would be an oral medication that may be able to help people with much more extensive disease as far as vitiligo goes,” he said, adding that he expects approval for a vitiligo indication within a few years.

He pointed out that longer-term safety data will be available because it is already on the market for alopecia.

Upadacitinib (Rinvoq), an oral JAK inhibitor, is approved for atopic dermatitis but is being studied for vitiligo as well, he noted. “I’m very excited to see what that holds for patients as well,” Dr. Chovatiya said.

Dr. Gutierrez said that he is excited about oral JAK inhibitors but sees potential in finding new ways to transplant melanocytes into areas where there are none.

The pigmentation field has seen new energy since last year’s approval, he said, particularly among people of color.

“We have new options for vitiligo that were lacking compared with other conditions, such as atopic dermatitis and psoriasis,” he said. “Hopefully, there will be more promising breakthroughs.”

Dr. Rosmarin is the chief investigator for the pivotal trials that led to FDA approval of ruxolitinib. He disclosed ties with AbbVie, Abcuro, AltruBio, Amgen, Arena, Boehringer Ingelheim, Bristol-Meyers Squibb, Celgene, Concert, CSL Behring, Dermavant, Dermira, Galderma, Incyte, Janssen, Kyowa Kirin, Lilly, Merck, Novartis, Pfizer, Regeneron, Revolo Biotherapeutics, Sanofi, Sun Pharmaceuticals, UCB, and Viela Bio. Dr. Chovatiya disclosed ties with AbbVie, Arcutis, Arena, Argenx, Beiersdorf, Bristol-Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, LEO Pharma, L’Oréal, National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB. Dr. Heath and Dr. Gutierrez report no relevant financial relationships.

A version of this article appeared on Medscape.com.

A year after celebrating the approval of the first treatment for repigmentation of vitiligo, dermatologists describe how topical ruxolitinib has advanced the outlook for patients with the disease and what’s next in the pipeline.

The Food and Drug Administration approved the cream formulation of ruxolitinib (Opzelura), a JAK inhibitor, for repigmentation of nonsegmental vitiligo in July 2022 for people aged 12 years and older.

Raj Chovatiya, MD, PhD, assistant professor of dermatology at Northwestern University, Chicago, said that he likes to use ruxolitinib cream in combination with other treatments.

Dr. Chovatiya

“In the real world with vitiligo patients, we’re oftentimes doing combinatorial therapy anyway. So phototherapy, specifically, narrow-band UVB, is something that we have a lot of clinical evidence for over the years, and it’s a modality that can combine with topical steroids and topical calcineurin inhibitors.”

He said trials to study combinations will yield better guidance on optimal use of ruxolitinib cream. “In general, vitiligo patients can really benefit from phototherapy,” he said in an interview. (Labeling recommends against combination with other JAK inhibitors, biologics, or potent immunosuppressants, such as azathioprine or cyclosporine.)

This first year has shown that ruxolitinib is an effective option, but counseling patients to expect slow improvement is important so that patients stick with it, he noted.

Documenting what treatments patients with vitiligo have used before is important, he said, as is counseling patients that ruxolitinib is approved only for use on up to 10% of a person’s body surface area. (Product labeling recommends that a thin layer be applied twice a day to affected areas up to 10% of body surface area.)

Ruxolitinib has brought a “louder voice” to vitiligo and has opened up options for patients with the disease, Dr. Chovatiya said. “Having the ability to topically treat people who have very extensive disease really gives us a lot more flexibility than we have had before.”
 

Good experiences with payers at safety-net hospital

Candrice R. Heath, MD, assistant professor of dermatology at Temple University, Philadelphia, said that real-world experience with topical ruxolitinib will be more evident after its been on the market for 18-24 months.

Dr. Heath said she, too, encourages use of narrow-band UVB phototherapy in conjunction with the treatment.

From an insurance reimbursement standpoint, she said that she is glad that there have been fewer hurdles in getting ruxolitinib to patients than she has experienced with other medications.

In her safety-net hospital, she told this news organization, she sees patients with many types of insurance, but most have Medicaid. “So, I’m always expecting the step therapies, denials, pushbacks, etc.,” she said. But the path has been smoother for ruxolitinib coverage, she noted.

Her colleagues are committed to documenting everything the patient has tried, she added, and that helps with prior authorization.

Dr. Heath said that pointing out to insurers that ruxolitinib is the only approved treatment for repigmentation helps facilitate coverage.

“The science is advancing, and I’m happy to be practicing during a time when we actually have something approved for vitiligo,” she said. But she pointed out that phototherapy often is not covered for vitiligo, “which is horrible, when it is readily approved for psoriasis and atopic dermatitis.”

To document progress, Dr. Heath said that she always takes photographs of her patients with vitiligo because “the pictures remind us how far we have come.”
 

Data spotlight success in adolescents

Data from two trials give a clinical picture of the drug’s safety and efficacy in younger patients.

Adolescents had particularly good results in the first year with ruxolitinib, according to pooled phase 3 data from TRuE-V1 and TRuE-V2, this news organization reported.

The findings, presented at the 25th World Congress of Dermatology in Singapore, indicate that more than half of the participants achieved at least a 50% improvement from baseline in the total Vitiligo Area Scoring Index (T-VASI50) at 52 weeks.

The percentages of young patients aged 12-17 years taking twice-daily ruxolitinib who achieved T-VASI 50 at weeks 12, 24, and 52 were 11.5%, 26.9%, and 57.7%, respectively. The corresponding percentages for all in the study population were 10.7%, 22.7%, and 44.4%, respectively.

At the meeting, the presenter, Julien Seneschal, MD, PhD, professor of dermatology and head of the vitiligo and pigmentary disorders clinic at the University of Bordeaux, France, said, “This suggests that younger patients can respond better to the treatment.” He noted, however, that there were few adolescents in the studies.
 

New excitement in the field

Daniel Gutierrez, MD, assistant professor of dermatology at New York University, said the treatment has brought new excitement to the field.

“Patients with vitiligo are very motivated to treat their disease,” he said, because it typically is on the face and other highly visual areas, which can affect their overall perception of self.

NYU Langone Health

Previously, he noted in an interview, the only FDA-approved treatment was monobenzone, but that was for depigmentation rather than repigmentation.

Otherwise, treatments were being used off label, and patients were receiving compounded formulations that often weren’t covered by insurance and often had shorter shelf life.

He said that he still occasionally gets denials from payers who consider vitiligo a cosmetic condition.

“I’ve had more luck with insurance, at least in the New York State area.” He added that sometimes payers require use of a topical calcineurin inhibitor for about 12 weeks before they will cover ruxolitinib.

Dr. Gutierrez also recommends using phototherapy with topical ruxolitinib “because they work on slightly different pathways.”

When he starts patients on a new therapy such as ruxolitinib, he asks them to come back in 3 months, and often by then, progress is evident. Facial areas show the most response, he said, while hands and feet are less likely to show significant improvement.

He said that it’s important for physicians and patients to know that improvements can take weeks or months to be noticeable. “I tell patients not to give up,” he added.

Showing the patients pictures from the current appointment and comparing them with pictures from previous appointments can help them better understand their progress, he said.
 

Lead investigator adds observations

David Rosmarin, MD, chair of the department of dermatology at Indiana University, Indianapolis, was the lead investigator of the pivotal TruE-V1 and TruE-V2 trials for vitiligo. In that role, he has been treating vitiligo patients with topical ruxolitinib since 2015.

In an interview, he said that many patients “don’t hit their optimal results at 3 months, 6 months, even the year mark. With continued use, many can see continued benefit.”

Other patients, he said, don’t respond within the first 6 months but with continued use may eventually respond, he said.

“Unfortunately, we have no way of knowing, based on clinical characteristics or baseline demographics, whether a patient will be a delayed responder or not or an early responder,” Dr. Rosmarin added.

He provided several observations about people who have stopped taking the medication.

“When people stop,” he said, “some maintain their response, but some start to depigment again. Again, we have no way of predicting who will be in which category.”

He said that once patients have hit their desired response, he usually advises them to taper down to maybe twice a week or to stop treatment, but if they see any recurrence, they should start reusing the medicine.

“We have some patients who have gone 6 or 7 years now before they had a recurrence, but others may start to depigment again in 2 to 3 months,” Dr. Rosmarin said.

As for phototherapy, he said, the combination with topical ruxolitinib is being studied.

“We think the combination is synergistic and better than either alone, but we’re still waiting for data to prove that,” he said.

In his practice, he offers patients the option either to use just ruxolitinib cream or the combination early on. Many patients, because of convenience, say they’ll first try the cream to see if that works.

“The challenge with light [therapy] is that it can be very inconvenient,” he said. Patients have to live close to a phototherapy unit to receive therapy 2-3 times a week or have a phototherapy product in their home.
 

Next in the pipeline

Experts say the progress doesn’t stop with ruxolitinib cream. Current trials of several medications show there’s more to come for patients with vitiligo.

Dr. Chovatiya said that next up may be oral ritlecitinib (Litfulo), a JAK inhibitor that was approved for severe alopecia areata in June for people aged 12 years and older. Phase 2 results have been published for its use with vitiligo.

“This would be an oral medication that may be able to help people with much more extensive disease as far as vitiligo goes,” he said, adding that he expects approval for a vitiligo indication within a few years.

He pointed out that longer-term safety data will be available because it is already on the market for alopecia.

Upadacitinib (Rinvoq), an oral JAK inhibitor, is approved for atopic dermatitis but is being studied for vitiligo as well, he noted. “I’m very excited to see what that holds for patients as well,” Dr. Chovatiya said.

Dr. Gutierrez said that he is excited about oral JAK inhibitors but sees potential in finding new ways to transplant melanocytes into areas where there are none.

The pigmentation field has seen new energy since last year’s approval, he said, particularly among people of color.

“We have new options for vitiligo that were lacking compared with other conditions, such as atopic dermatitis and psoriasis,” he said. “Hopefully, there will be more promising breakthroughs.”

Dr. Rosmarin is the chief investigator for the pivotal trials that led to FDA approval of ruxolitinib. He disclosed ties with AbbVie, Abcuro, AltruBio, Amgen, Arena, Boehringer Ingelheim, Bristol-Meyers Squibb, Celgene, Concert, CSL Behring, Dermavant, Dermira, Galderma, Incyte, Janssen, Kyowa Kirin, Lilly, Merck, Novartis, Pfizer, Regeneron, Revolo Biotherapeutics, Sanofi, Sun Pharmaceuticals, UCB, and Viela Bio. Dr. Chovatiya disclosed ties with AbbVie, Arcutis, Arena, Argenx, Beiersdorf, Bristol-Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, LEO Pharma, L’Oréal, National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB. Dr. Heath and Dr. Gutierrez report no relevant financial relationships.

A version of this article appeared on Medscape.com.

As the summer ends, greater numbers of patients request treatment for poikiloderma. Poikiloderma of Civatte is an acquired, irreversible sun-induced dermatosis and is one of the most frustrating dermatologic problems to treat.

Poikiloderma is an area of mottled pigmentation (hyper and hypo) with telangiectasias and atrophy often present on the V of the chest, lateral neck, and lateral face. It is always present in sun-exposed areas but shaded areas of the neck, such as the area under the chin, are spared. Cumulative UV radiation is the predominant underlying cause; however, postmenopausal hormonal changes and contact sensitization with perfumes and cosmetics can exacerbate the condition.

Courtesy Dr. Lily Talakoub

Breaking down the subtypes will help direct the treatment options. There are two main types of poikiloderma – telangiectatic and hyperpigmented – and of course, an overlap between the two. Choosing which subtype is dominant is based primarily on clinical presentation and dermoscopic findings. Atrophy is ubiquitous, thus collagen remodeling is a necessary treatment for both.

In my clinical practice, the pigmentation component of poikiloderma in all skin types is pretreated and posttreated with topical hydroquinone and/or oral tranexamic acid to avoid recurrence after any laser treatment. In the majority of my patients with poikiloderma, I first treat the pigmentation with hydroquinone and tranexamic acid (if the patient is a candidate) to minimize the pigment as much as possible and then treat the telangiectasias with lasers. I try to avoid laser treatment of the hyperpigmentation if at all possible.

Telangiectatic poikiloderma is characterized by a linear and reticular dilated network of vessels. Laser treatment options include IPL, V-beam, and KTP lasers. Multiple treatments are usually necessary and if the patient has concomitant flushing and burning symptoms associated with poikiloderma, topical rosacea treatments such as topical oxymetazoline, as well as avoidance of fragrance, and strict use of a broad spectrum mineral sunscreen, should be initiated prior to laser treatments.

Hyperpigmented poikiloderma is characterized by mottled hyperpigmentation caused by the increased melanin irregularly distributed in the basal layer of the epidermis and melanophages within the dermis. The best treatment for this is with 1,927-nm fractionated resurfacing modalities. Although IPL has been used in this area and is often recommended in the literature for the lentigines, in my experience, the results are transient and it is much harder to blend the color of the skin with the surrounding area of the neck, lateral chest, shoulders, and arms. The 1,927-nm fractionated laser allows for a smoother transition and blending of the skin and also helps with some collagen remodeling of the dermis.

Atrophy is visualized under dermoscopy as a white polka dot–like print with flattened, atrophic epidermis and an elastotic papillary dermis in between the hyperemic telangiectatic network. With every case of poikiloderma, there is some atrophy present; therefore, I combine platelet rich plasma (PRP), PRP with microneedling, or very light treatments with the Fraxel dual (1927/1550) laser to help improve architectural changes of the dermis.

As with any condition of the chest and neck, there is a very fine line between treatment efficacy and complications. All treatments, particularly lasers, should be used with considerable caution and test spots and with the expectation that the treatment will mitigate, not resolve the condition. Sun avoidance, use of daily mineral SPF, and avoidance of fragrance should be emphasized. If expectations are set properly, patients are often satisfied with small improvements as this condition can be very troubling and difficult to treat.

Dr. Talakoub is in private practice in McLean, Va. Write to her at [email protected]. She had no relevant disclosures.
 

References

Geronemus R. Arch Dermatol. 1990 Apr;126(4):547-8.

Goldman MP and Weiss RA. Plast Reconstr Surg. 2001 May;107(6):1376-81.

Katoulis AC and Stavrianeas NG. Poikiloderma of Civatte. In: Rigopoulos D, Katoulis AC, editors. Hyperpigmentation (Boca Raton, Fla.: CRC Press, 2017). Chapter 12.

As the summer ends, greater numbers of patients request treatment for poikiloderma. Poikiloderma of Civatte is an acquired, irreversible sun-induced dermatosis and is one of the most frustrating dermatologic problems to treat.

Poikiloderma is an area of mottled pigmentation (hyper and hypo) with telangiectasias and atrophy often present on the V of the chest, lateral neck, and lateral face. It is always present in sun-exposed areas but shaded areas of the neck, such as the area under the chin, are spared. Cumulative UV radiation is the predominant underlying cause; however, postmenopausal hormonal changes and contact sensitization with perfumes and cosmetics can exacerbate the condition.

Courtesy Dr. Lily Talakoub

Breaking down the subtypes will help direct the treatment options. There are two main types of poikiloderma – telangiectatic and hyperpigmented – and of course, an overlap between the two. Choosing which subtype is dominant is based primarily on clinical presentation and dermoscopic findings. Atrophy is ubiquitous, thus collagen remodeling is a necessary treatment for both.

In my clinical practice, the pigmentation component of poikiloderma in all skin types is pretreated and posttreated with topical hydroquinone and/or oral tranexamic acid to avoid recurrence after any laser treatment. In the majority of my patients with poikiloderma, I first treat the pigmentation with hydroquinone and tranexamic acid (if the patient is a candidate) to minimize the pigment as much as possible and then treat the telangiectasias with lasers. I try to avoid laser treatment of the hyperpigmentation if at all possible.

Telangiectatic poikiloderma is characterized by a linear and reticular dilated network of vessels. Laser treatment options include IPL, V-beam, and KTP lasers. Multiple treatments are usually necessary and if the patient has concomitant flushing and burning symptoms associated with poikiloderma, topical rosacea treatments such as topical oxymetazoline, as well as avoidance of fragrance, and strict use of a broad spectrum mineral sunscreen, should be initiated prior to laser treatments.

Hyperpigmented poikiloderma is characterized by mottled hyperpigmentation caused by the increased melanin irregularly distributed in the basal layer of the epidermis and melanophages within the dermis. The best treatment for this is with 1,927-nm fractionated resurfacing modalities. Although IPL has been used in this area and is often recommended in the literature for the lentigines, in my experience, the results are transient and it is much harder to blend the color of the skin with the surrounding area of the neck, lateral chest, shoulders, and arms. The 1,927-nm fractionated laser allows for a smoother transition and blending of the skin and also helps with some collagen remodeling of the dermis.

Atrophy is visualized under dermoscopy as a white polka dot–like print with flattened, atrophic epidermis and an elastotic papillary dermis in between the hyperemic telangiectatic network. With every case of poikiloderma, there is some atrophy present; therefore, I combine platelet rich plasma (PRP), PRP with microneedling, or very light treatments with the Fraxel dual (1927/1550) laser to help improve architectural changes of the dermis.

As with any condition of the chest and neck, there is a very fine line between treatment efficacy and complications. All treatments, particularly lasers, should be used with considerable caution and test spots and with the expectation that the treatment will mitigate, not resolve the condition. Sun avoidance, use of daily mineral SPF, and avoidance of fragrance should be emphasized. If expectations are set properly, patients are often satisfied with small improvements as this condition can be very troubling and difficult to treat.

Dr. Talakoub is in private practice in McLean, Va. Write to her at [email protected]. She had no relevant disclosures.
 

References

Geronemus R. Arch Dermatol. 1990 Apr;126(4):547-8.

Goldman MP and Weiss RA. Plast Reconstr Surg. 2001 May;107(6):1376-81.

Katoulis AC and Stavrianeas NG. Poikiloderma of Civatte. In: Rigopoulos D, Katoulis AC, editors. Hyperpigmentation (Boca Raton, Fla.: CRC Press, 2017). Chapter 12.

As the summer ends, greater numbers of patients request treatment for poikiloderma. Poikiloderma of Civatte is an acquired, irreversible sun-induced dermatosis and is one of the most frustrating dermatologic problems to treat.

Poikiloderma is an area of mottled pigmentation (hyper and hypo) with telangiectasias and atrophy often present on the V of the chest, lateral neck, and lateral face. It is always present in sun-exposed areas but shaded areas of the neck, such as the area under the chin, are spared. Cumulative UV radiation is the predominant underlying cause; however, postmenopausal hormonal changes and contact sensitization with perfumes and cosmetics can exacerbate the condition.

Courtesy Dr. Lily Talakoub

Breaking down the subtypes will help direct the treatment options. There are two main types of poikiloderma – telangiectatic and hyperpigmented – and of course, an overlap between the two. Choosing which subtype is dominant is based primarily on clinical presentation and dermoscopic findings. Atrophy is ubiquitous, thus collagen remodeling is a necessary treatment for both.

In my clinical practice, the pigmentation component of poikiloderma in all skin types is pretreated and posttreated with topical hydroquinone and/or oral tranexamic acid to avoid recurrence after any laser treatment. In the majority of my patients with poikiloderma, I first treat the pigmentation with hydroquinone and tranexamic acid (if the patient is a candidate) to minimize the pigment as much as possible and then treat the telangiectasias with lasers. I try to avoid laser treatment of the hyperpigmentation if at all possible.

Telangiectatic poikiloderma is characterized by a linear and reticular dilated network of vessels. Laser treatment options include IPL, V-beam, and KTP lasers. Multiple treatments are usually necessary and if the patient has concomitant flushing and burning symptoms associated with poikiloderma, topical rosacea treatments such as topical oxymetazoline, as well as avoidance of fragrance, and strict use of a broad spectrum mineral sunscreen, should be initiated prior to laser treatments.

Hyperpigmented poikiloderma is characterized by mottled hyperpigmentation caused by the increased melanin irregularly distributed in the basal layer of the epidermis and melanophages within the dermis. The best treatment for this is with 1,927-nm fractionated resurfacing modalities. Although IPL has been used in this area and is often recommended in the literature for the lentigines, in my experience, the results are transient and it is much harder to blend the color of the skin with the surrounding area of the neck, lateral chest, shoulders, and arms. The 1,927-nm fractionated laser allows for a smoother transition and blending of the skin and also helps with some collagen remodeling of the dermis.

Atrophy is visualized under dermoscopy as a white polka dot–like print with flattened, atrophic epidermis and an elastotic papillary dermis in between the hyperemic telangiectatic network. With every case of poikiloderma, there is some atrophy present; therefore, I combine platelet rich plasma (PRP), PRP with microneedling, or very light treatments with the Fraxel dual (1927/1550) laser to help improve architectural changes of the dermis.

As with any condition of the chest and neck, there is a very fine line between treatment efficacy and complications. All treatments, particularly lasers, should be used with considerable caution and test spots and with the expectation that the treatment will mitigate, not resolve the condition. Sun avoidance, use of daily mineral SPF, and avoidance of fragrance should be emphasized. If expectations are set properly, patients are often satisfied with small improvements as this condition can be very troubling and difficult to treat.

Dr. Talakoub is in private practice in McLean, Va. Write to her at [email protected]. She had no relevant disclosures.
 

References

Geronemus R. Arch Dermatol. 1990 Apr;126(4):547-8.

Goldman MP and Weiss RA. Plast Reconstr Surg. 2001 May;107(6):1376-81.

Katoulis AC and Stavrianeas NG. Poikiloderma of Civatte. In: Rigopoulos D, Katoulis AC, editors. Hyperpigmentation (Boca Raton, Fla.: CRC Press, 2017). Chapter 12.

In a specialty dermatology clinic, pediatric lichen sclerosus (LS) was difficult to differentiate from vitiligo, especially in patients with medium to dark skin tones, according to a retrospective review of cases.

Researchers who tallied symptoms and physical exam findings observed fewer statistically significant differences between LS and vitiligo patients than expected, and LS and vitiligo were sometimes misdiagnosed as each other.

“LS must be treated aggressively to prevent long-term sequelae such as permanent scarring and vulvar squamous cell carcinoma, making an accurate diagnosis crucial,” the authors write in a poster they presented at the annual meeting of the Society for Pediatric Dermatology.

The researchers found that pruritus, constipation, and dysuria were the most common symptoms experienced by both LS and vitiligo patients. All were experienced more frequently by LS patients, but only pruritus reached statistical significance (P = .040). Other symptoms experienced only by LS patients included vulvar pain, bleeding, and pain with defecation.

Meanwhile, apart from hypopigmentation and erythema, all physical exam findings were more frequent in LS patients, compared with vitiligo patients, including fissures and purpura/petechiae, but only epidermal atrophy and figure-of-8 distribution of hypopigmentation reached statistical significance (P values of .047 and .036, respectively).

In other findings, LS and vitiligo were misdiagnosed as each other 15 times. Nearly half of the misdiagnoses (46.7%) were made in Black patients, who composed 38.8% of all patients in the study.

“I suspect that some vitiligo cases that were previously ‘misdiagnosed’ as LS were actually LS that just didn’t repigment and then were labeled as vitiligo in the chart,” Dr. Habeshian said.

“And some of those LS cases that previously were misdiagnosed as vitiligo likely had other more subtle LS findings that were missed (shininess and wrinkling of the skin, small fissures, constipation) or that were attributed to comorbid irritant contact dermatitis or another condition,” she said. “It was interesting to see that even in a vulvar dermatology clinic there can be confusion between these diagnoses because the literature on pediatric LS in darker skin tones is so sparse.”

She emphasized that a close exam and detailed history are needed to properly diagnose patients with anogenital skin conditions.

“Don’t forget to ask about constipation and urinary symptoms as well as psychosocial and, in the appropriate patient, sexual and reproductive function,” Dr. Habeshian said. “Based on my experience, pediatric LS is much more common in our community than the literature would suggest. Its psychosocial impact is tremendous but not well documented, particularly in pediatric patients. In my experience, the longer LS is misdiagnosed or mistreated, the more challenging it becomes to manage. You don’t want to miss LS.”

She acknowledged certain limitations of the study, including the fact that photographs were not available for review for many of the earlier years of the clinic. “Therefore, we had to depend on the diagnosis given at the time of the visit,” she said. “This likely accounts in part for the smaller number than expected of significant exam and history findings between LS and vitiligo. We need further studies utilizing a standardized approach to accurate diagnosis.”

Her coauthors were Nikita Menta, Aneka Khilnani, MS, and Tazim Dowlut-McElroy, MD. The researchers reported having no financial disclosures.

 

In a specialty dermatology clinic, pediatric lichen sclerosus (LS) was difficult to differentiate from vitiligo, especially in patients with medium to dark skin tones, according to a retrospective review of cases.

Researchers who tallied symptoms and physical exam findings observed fewer statistically significant differences between LS and vitiligo patients than expected, and LS and vitiligo were sometimes misdiagnosed as each other.

“LS must be treated aggressively to prevent long-term sequelae such as permanent scarring and vulvar squamous cell carcinoma, making an accurate diagnosis crucial,” the authors write in a poster they presented at the annual meeting of the Society for Pediatric Dermatology.

The researchers found that pruritus, constipation, and dysuria were the most common symptoms experienced by both LS and vitiligo patients. All were experienced more frequently by LS patients, but only pruritus reached statistical significance (P = .040). Other symptoms experienced only by LS patients included vulvar pain, bleeding, and pain with defecation.

Meanwhile, apart from hypopigmentation and erythema, all physical exam findings were more frequent in LS patients, compared with vitiligo patients, including fissures and purpura/petechiae, but only epidermal atrophy and figure-of-8 distribution of hypopigmentation reached statistical significance (P values of .047 and .036, respectively).

In other findings, LS and vitiligo were misdiagnosed as each other 15 times. Nearly half of the misdiagnoses (46.7%) were made in Black patients, who composed 38.8% of all patients in the study.

“I suspect that some vitiligo cases that were previously ‘misdiagnosed’ as LS were actually LS that just didn’t repigment and then were labeled as vitiligo in the chart,” Dr. Habeshian said.

“And some of those LS cases that previously were misdiagnosed as vitiligo likely had other more subtle LS findings that were missed (shininess and wrinkling of the skin, small fissures, constipation) or that were attributed to comorbid irritant contact dermatitis or another condition,” she said. “It was interesting to see that even in a vulvar dermatology clinic there can be confusion between these diagnoses because the literature on pediatric LS in darker skin tones is so sparse.”

She emphasized that a close exam and detailed history are needed to properly diagnose patients with anogenital skin conditions.

“Don’t forget to ask about constipation and urinary symptoms as well as psychosocial and, in the appropriate patient, sexual and reproductive function,” Dr. Habeshian said. “Based on my experience, pediatric LS is much more common in our community than the literature would suggest. Its psychosocial impact is tremendous but not well documented, particularly in pediatric patients. In my experience, the longer LS is misdiagnosed or mistreated, the more challenging it becomes to manage. You don’t want to miss LS.”

She acknowledged certain limitations of the study, including the fact that photographs were not available for review for many of the earlier years of the clinic. “Therefore, we had to depend on the diagnosis given at the time of the visit,” she said. “This likely accounts in part for the smaller number than expected of significant exam and history findings between LS and vitiligo. We need further studies utilizing a standardized approach to accurate diagnosis.”

Her coauthors were Nikita Menta, Aneka Khilnani, MS, and Tazim Dowlut-McElroy, MD. The researchers reported having no financial disclosures.

 

In a specialty dermatology clinic, pediatric lichen sclerosus (LS) was difficult to differentiate from vitiligo, especially in patients with medium to dark skin tones, according to a retrospective review of cases.

Researchers who tallied symptoms and physical exam findings observed fewer statistically significant differences between LS and vitiligo patients than expected, and LS and vitiligo were sometimes misdiagnosed as each other.

“LS must be treated aggressively to prevent long-term sequelae such as permanent scarring and vulvar squamous cell carcinoma, making an accurate diagnosis crucial,” the authors write in a poster they presented at the annual meeting of the Society for Pediatric Dermatology.

The researchers found that pruritus, constipation, and dysuria were the most common symptoms experienced by both LS and vitiligo patients. All were experienced more frequently by LS patients, but only pruritus reached statistical significance (P = .040). Other symptoms experienced only by LS patients included vulvar pain, bleeding, and pain with defecation.

Meanwhile, apart from hypopigmentation and erythema, all physical exam findings were more frequent in LS patients, compared with vitiligo patients, including fissures and purpura/petechiae, but only epidermal atrophy and figure-of-8 distribution of hypopigmentation reached statistical significance (P values of .047 and .036, respectively).

In other findings, LS and vitiligo were misdiagnosed as each other 15 times. Nearly half of the misdiagnoses (46.7%) were made in Black patients, who composed 38.8% of all patients in the study.

“I suspect that some vitiligo cases that were previously ‘misdiagnosed’ as LS were actually LS that just didn’t repigment and then were labeled as vitiligo in the chart,” Dr. Habeshian said.

“And some of those LS cases that previously were misdiagnosed as vitiligo likely had other more subtle LS findings that were missed (shininess and wrinkling of the skin, small fissures, constipation) or that were attributed to comorbid irritant contact dermatitis or another condition,” she said. “It was interesting to see that even in a vulvar dermatology clinic there can be confusion between these diagnoses because the literature on pediatric LS in darker skin tones is so sparse.”

She emphasized that a close exam and detailed history are needed to properly diagnose patients with anogenital skin conditions.

“Don’t forget to ask about constipation and urinary symptoms as well as psychosocial and, in the appropriate patient, sexual and reproductive function,” Dr. Habeshian said. “Based on my experience, pediatric LS is much more common in our community than the literature would suggest. Its psychosocial impact is tremendous but not well documented, particularly in pediatric patients. In my experience, the longer LS is misdiagnosed or mistreated, the more challenging it becomes to manage. You don’t want to miss LS.”

She acknowledged certain limitations of the study, including the fact that photographs were not available for review for many of the earlier years of the clinic. “Therefore, we had to depend on the diagnosis given at the time of the visit,” she said. “This likely accounts in part for the smaller number than expected of significant exam and history findings between LS and vitiligo. We need further studies utilizing a standardized approach to accurate diagnosis.”

Her coauthors were Nikita Menta, Aneka Khilnani, MS, and Tazim Dowlut-McElroy, MD. The researchers reported having no financial disclosures.

 

The Diagnosis: Localized Cutaneous Argyria

The differential diagnosis of an enlarging pigmented lesion is broad, including various neoplasms, pigmented deep fungal infections, and cutaneous deposits secondary to systemic or topical medications or other exogenous substances. In our patient, identification of black particulate material on biopsy prompted further questioning. After the sinus tract persisted for 6 months, our patient’s infectious disease physician started applying silver nitrate at 3-week intervals to minimize drainage, exudate, and granulation tissue formation. After 3 months, marked pigmentation of the skin around the sinus tract was noted.

Argyria is a rare skin disorder that results from deposition of silver via localized exposure or systemic ingestion. Discoloration can either be reversible or irreversible, usually dependent on the length of silver exposure.¹ Affected individuals exhibit blue-gray pigmentation of the skin that may be localized or diffuse. Photoactivated reduction of silver salts leads to conversion to elemental silver in the skin.² Although argyria is most common on sun-exposed areas, the mucosae and nails may be involved in systemic cases. The etiology of argyria includes occupational exposure by ingestion of dust or traumatic cutaneous exposure in jewelry manufacturing, mining, or photographic or radiograph manufacturing. Other sources of localized argyria include prolonged contact with topical silver nitrate or silver sulfadiazine for wound care, silver-coated jewelry or piercings, acupuncture, tooth restoration procedures using dental amalgam, silver-containing surgical implants, or other silver-containing medications or wound dressings. Discontinuing contact with the source of silver minimizes further pigmentation, and excision of deposits may be helpful in some instances.³

Histopathologic findings in argyria may be subtle and diverse. Small particulate material may be apparent on careful examination at high magnification only, and the depth of deposition can depend on the etiology of absorption or implantation as well as the length of exposure. Short-term exposure may be associated with deposition of dark, brown-black, coarse granules confined to the stratum corneum.¹ Frequently, cases of argyria reveal small, extracellular, brown-black, pigmented granules in a bandlike distribution primarily around vasculature, eccrine glands, perineural tissue, hair follicles, or arrector pili muscles or free in the dermis around collagen bundles. The granules can be highlighted by dark-field microscopy that will display scattered, refractile, white particles, described as a “stars in heaven” pattern.³ Rare ochre-colored collagen bundles have been reported in some cases, described as a pseudo-ochronosis pattern of argyria.⁴

Given the clinical history in our patient, a melanocytic lesion was considered but was excluded based on the histopathologic findings. Regressed melanoma clinically may resemble cutaneous silver deposition, as tumoral melanosis can be associated with an intense blue-black presentation. Histopathology will reveal an absence of melanocytes with residual coarse melanin in melanophages (Figure 1) rather than the particulate material associated with silver deposition. Although argyria can be associated with increased melanin in the basal epidermal keratinocytes and melanophages in the papillary dermis, silver granules can be distinguished by their uniform appearance and location throughout the skin (dermis, around vasculature/adnexal structures vs melanin in melanophages and basal epidermal keratinocytes).^3,5,6

Blue nevi typically present as well-circumscribed, blue to gray or even dark brown lesions most often located on the arms, legs, head, and neck. Histopathology reveals spindle-shaped dendritic melanocytes dissecting through collagen bundles in the dermis with melanophages (Figure 2). Pigmentation may vary from extensive to little or even none. Blue nevi are demarcated and may be associated with dermal sclerosis.⁷

Drug-induced hyperpigmentation has a variable presentation both clinically and histologically depending on the type of drug implicated. Tetracyclines, particularly minocycline, are known culprits of drug-induced pigmentation, which can present as blue-gray to brown discoloration in at least 3 classically described patterns: (1) blue-black pigmentation around scars or prior inflammatory sites, (2) blue-black pigmentation on the shins or upper extremities, or (3) brown pigmentation in photosensitive areas. Histopathology reveals brown-black granules intracellularly in macrophages or fibroblasts or localized around vessels or eccrine glands (Figure 3). Special stains such as Perls Prussian blue or Fontana-Masson may highlight the pigmented granules. Widespread pigmentation in other organs, such as the thyroid, and history of long-standing tetracycline use are helpful clues to distinguish drug-induced pigmentation from other entities.⁸

Tattoo ink reaction frequently presents as an irregular pigmented lesion that can have associated features of inflammation including rash, erythema, and swelling. Histopathology reveals small clumped pigment in the dermis localized either extracellularly preferentially around vascular structures and collagen fibers or intracellularly in macrophages or fibroblasts (Figure 4). Considering the pigment is foreign material, a mixed inflammatory infiltrate can be present or more rarely the presence of pigment may induce pseudoepitheliomatous hyperplasia. The inflammatory reaction pattern on histology can vary, but granulomatous and lichenoid patterns frequently have been described. Other helpful clues to suggest tattoo pigment include refractile granules under polarized light and multiple pigmented colors.³

Dermal melanocytosis also may be considered, which consists of blue-gray irregular macules to patches on the skin that are frequently present at birth but may develop later in life. Histopathology reveals pigmented dendritic to spindle-shaped dermal melanocytes and melanophages dissecting between collagen fibers localized to the deep dermis. In addition, some hematologic or vascular disorders, including resolving hemorrhage or cyanosis, may be considered in the clinical differential. Deposition disorders such as chrysiasis and ochronosis could exhibit clinical or histopathologic similarities.^3,8

Occasionally, prolonged use of topical silver nitrate may result in a pigmented lesion that mimics a melanocytic neoplasm or other pigmented lesions. However, these conditions can be readily differentiated by their characteristic histopathologic findings along with detailed clinical history.

The Diagnosis: Localized Cutaneous Argyria

The differential diagnosis of an enlarging pigmented lesion is broad, including various neoplasms, pigmented deep fungal infections, and cutaneous deposits secondary to systemic or topical medications or other exogenous substances. In our patient, identification of black particulate material on biopsy prompted further questioning. After the sinus tract persisted for 6 months, our patient’s infectious disease physician started applying silver nitrate at 3-week intervals to minimize drainage, exudate, and granulation tissue formation. After 3 months, marked pigmentation of the skin around the sinus tract was noted.

Argyria is a rare skin disorder that results from deposition of silver via localized exposure or systemic ingestion. Discoloration can either be reversible or irreversible, usually dependent on the length of silver exposure.¹ Affected individuals exhibit blue-gray pigmentation of the skin that may be localized or diffuse. Photoactivated reduction of silver salts leads to conversion to elemental silver in the skin.² Although argyria is most common on sun-exposed areas, the mucosae and nails may be involved in systemic cases. The etiology of argyria includes occupational exposure by ingestion of dust or traumatic cutaneous exposure in jewelry manufacturing, mining, or photographic or radiograph manufacturing. Other sources of localized argyria include prolonged contact with topical silver nitrate or silver sulfadiazine for wound care, silver-coated jewelry or piercings, acupuncture, tooth restoration procedures using dental amalgam, silver-containing surgical implants, or other silver-containing medications or wound dressings. Discontinuing contact with the source of silver minimizes further pigmentation, and excision of deposits may be helpful in some instances.³

Histopathologic findings in argyria may be subtle and diverse. Small particulate material may be apparent on careful examination at high magnification only, and the depth of deposition can depend on the etiology of absorption or implantation as well as the length of exposure. Short-term exposure may be associated with deposition of dark, brown-black, coarse granules confined to the stratum corneum.¹ Frequently, cases of argyria reveal small, extracellular, brown-black, pigmented granules in a bandlike distribution primarily around vasculature, eccrine glands, perineural tissue, hair follicles, or arrector pili muscles or free in the dermis around collagen bundles. The granules can be highlighted by dark-field microscopy that will display scattered, refractile, white particles, described as a “stars in heaven” pattern.³ Rare ochre-colored collagen bundles have been reported in some cases, described as a pseudo-ochronosis pattern of argyria.⁴

Given the clinical history in our patient, a melanocytic lesion was considered but was excluded based on the histopathologic findings. Regressed melanoma clinically may resemble cutaneous silver deposition, as tumoral melanosis can be associated with an intense blue-black presentation. Histopathology will reveal an absence of melanocytes with residual coarse melanin in melanophages (Figure 1) rather than the particulate material associated with silver deposition. Although argyria can be associated with increased melanin in the basal epidermal keratinocytes and melanophages in the papillary dermis, silver granules can be distinguished by their uniform appearance and location throughout the skin (dermis, around vasculature/adnexal structures vs melanin in melanophages and basal epidermal keratinocytes).^3,5,6

Blue nevi typically present as well-circumscribed, blue to gray or even dark brown lesions most often located on the arms, legs, head, and neck. Histopathology reveals spindle-shaped dendritic melanocytes dissecting through collagen bundles in the dermis with melanophages (Figure 2). Pigmentation may vary from extensive to little or even none. Blue nevi are demarcated and may be associated with dermal sclerosis.⁷

Drug-induced hyperpigmentation has a variable presentation both clinically and histologically depending on the type of drug implicated. Tetracyclines, particularly minocycline, are known culprits of drug-induced pigmentation, which can present as blue-gray to brown discoloration in at least 3 classically described patterns: (1) blue-black pigmentation around scars or prior inflammatory sites, (2) blue-black pigmentation on the shins or upper extremities, or (3) brown pigmentation in photosensitive areas. Histopathology reveals brown-black granules intracellularly in macrophages or fibroblasts or localized around vessels or eccrine glands (Figure 3). Special stains such as Perls Prussian blue or Fontana-Masson may highlight the pigmented granules. Widespread pigmentation in other organs, such as the thyroid, and history of long-standing tetracycline use are helpful clues to distinguish drug-induced pigmentation from other entities.⁸

Tattoo ink reaction frequently presents as an irregular pigmented lesion that can have associated features of inflammation including rash, erythema, and swelling. Histopathology reveals small clumped pigment in the dermis localized either extracellularly preferentially around vascular structures and collagen fibers or intracellularly in macrophages or fibroblasts (Figure 4). Considering the pigment is foreign material, a mixed inflammatory infiltrate can be present or more rarely the presence of pigment may induce pseudoepitheliomatous hyperplasia. The inflammatory reaction pattern on histology can vary, but granulomatous and lichenoid patterns frequently have been described. Other helpful clues to suggest tattoo pigment include refractile granules under polarized light and multiple pigmented colors.³

Dermal melanocytosis also may be considered, which consists of blue-gray irregular macules to patches on the skin that are frequently present at birth but may develop later in life. Histopathology reveals pigmented dendritic to spindle-shaped dermal melanocytes and melanophages dissecting between collagen fibers localized to the deep dermis. In addition, some hematologic or vascular disorders, including resolving hemorrhage or cyanosis, may be considered in the clinical differential. Deposition disorders such as chrysiasis and ochronosis could exhibit clinical or histopathologic similarities.^3,8

Occasionally, prolonged use of topical silver nitrate may result in a pigmented lesion that mimics a melanocytic neoplasm or other pigmented lesions. However, these conditions can be readily differentiated by their characteristic histopathologic findings along with detailed clinical history.

The Diagnosis: Localized Cutaneous Argyria

The differential diagnosis of an enlarging pigmented lesion is broad, including various neoplasms, pigmented deep fungal infections, and cutaneous deposits secondary to systemic or topical medications or other exogenous substances. In our patient, identification of black particulate material on biopsy prompted further questioning. After the sinus tract persisted for 6 months, our patient’s infectious disease physician started applying silver nitrate at 3-week intervals to minimize drainage, exudate, and granulation tissue formation. After 3 months, marked pigmentation of the skin around the sinus tract was noted.

Argyria is a rare skin disorder that results from deposition of silver via localized exposure or systemic ingestion. Discoloration can either be reversible or irreversible, usually dependent on the length of silver exposure.¹ Affected individuals exhibit blue-gray pigmentation of the skin that may be localized or diffuse. Photoactivated reduction of silver salts leads to conversion to elemental silver in the skin.² Although argyria is most common on sun-exposed areas, the mucosae and nails may be involved in systemic cases. The etiology of argyria includes occupational exposure by ingestion of dust or traumatic cutaneous exposure in jewelry manufacturing, mining, or photographic or radiograph manufacturing. Other sources of localized argyria include prolonged contact with topical silver nitrate or silver sulfadiazine for wound care, silver-coated jewelry or piercings, acupuncture, tooth restoration procedures using dental amalgam, silver-containing surgical implants, or other silver-containing medications or wound dressings. Discontinuing contact with the source of silver minimizes further pigmentation, and excision of deposits may be helpful in some instances.³

Histopathologic findings in argyria may be subtle and diverse. Small particulate material may be apparent on careful examination at high magnification only, and the depth of deposition can depend on the etiology of absorption or implantation as well as the length of exposure. Short-term exposure may be associated with deposition of dark, brown-black, coarse granules confined to the stratum corneum.¹ Frequently, cases of argyria reveal small, extracellular, brown-black, pigmented granules in a bandlike distribution primarily around vasculature, eccrine glands, perineural tissue, hair follicles, or arrector pili muscles or free in the dermis around collagen bundles. The granules can be highlighted by dark-field microscopy that will display scattered, refractile, white particles, described as a “stars in heaven” pattern.³ Rare ochre-colored collagen bundles have been reported in some cases, described as a pseudo-ochronosis pattern of argyria.⁴

Given the clinical history in our patient, a melanocytic lesion was considered but was excluded based on the histopathologic findings. Regressed melanoma clinically may resemble cutaneous silver deposition, as tumoral melanosis can be associated with an intense blue-black presentation. Histopathology will reveal an absence of melanocytes with residual coarse melanin in melanophages (Figure 1) rather than the particulate material associated with silver deposition. Although argyria can be associated with increased melanin in the basal epidermal keratinocytes and melanophages in the papillary dermis, silver granules can be distinguished by their uniform appearance and location throughout the skin (dermis, around vasculature/adnexal structures vs melanin in melanophages and basal epidermal keratinocytes).^3,5,6

Blue nevi typically present as well-circumscribed, blue to gray or even dark brown lesions most often located on the arms, legs, head, and neck. Histopathology reveals spindle-shaped dendritic melanocytes dissecting through collagen bundles in the dermis with melanophages (Figure 2). Pigmentation may vary from extensive to little or even none. Blue nevi are demarcated and may be associated with dermal sclerosis.⁷

Drug-induced hyperpigmentation has a variable presentation both clinically and histologically depending on the type of drug implicated. Tetracyclines, particularly minocycline, are known culprits of drug-induced pigmentation, which can present as blue-gray to brown discoloration in at least 3 classically described patterns: (1) blue-black pigmentation around scars or prior inflammatory sites, (2) blue-black pigmentation on the shins or upper extremities, or (3) brown pigmentation in photosensitive areas. Histopathology reveals brown-black granules intracellularly in macrophages or fibroblasts or localized around vessels or eccrine glands (Figure 3). Special stains such as Perls Prussian blue or Fontana-Masson may highlight the pigmented granules. Widespread pigmentation in other organs, such as the thyroid, and history of long-standing tetracycline use are helpful clues to distinguish drug-induced pigmentation from other entities.⁸

Tattoo ink reaction frequently presents as an irregular pigmented lesion that can have associated features of inflammation including rash, erythema, and swelling. Histopathology reveals small clumped pigment in the dermis localized either extracellularly preferentially around vascular structures and collagen fibers or intracellularly in macrophages or fibroblasts (Figure 4). Considering the pigment is foreign material, a mixed inflammatory infiltrate can be present or more rarely the presence of pigment may induce pseudoepitheliomatous hyperplasia. The inflammatory reaction pattern on histology can vary, but granulomatous and lichenoid patterns frequently have been described. Other helpful clues to suggest tattoo pigment include refractile granules under polarized light and multiple pigmented colors.³

Dermal melanocytosis also may be considered, which consists of blue-gray irregular macules to patches on the skin that are frequently present at birth but may develop later in life. Histopathology reveals pigmented dendritic to spindle-shaped dermal melanocytes and melanophages dissecting between collagen fibers localized to the deep dermis. In addition, some hematologic or vascular disorders, including resolving hemorrhage or cyanosis, may be considered in the clinical differential. Deposition disorders such as chrysiasis and ochronosis could exhibit clinical or histopathologic similarities.^3,8

Occasionally, prolonged use of topical silver nitrate may result in a pigmented lesion that mimics a melanocytic neoplasm or other pigmented lesions. However, these conditions can be readily differentiated by their characteristic histopathologic findings along with detailed clinical history.

Many people in the United States who use skin-lightening products don’t check with their doctors beforehand, and most don’t know they may contain hydroquinone, mercury, steroids, or other harmful chemicals, a recent cross-sectional survey suggests.

Skin lightening – which uses chemicals to lighten dark areas of skin or to generally lighten skin tone – poses a health risk from potentially unsafe formulations, the authors write in the International Journal of Women’s Dermatology.

Skin lightening is “influenced by colorism, the system of inequality that affords opportunities and privileges to lighter-skinned individuals across racial/ethnic groups,” they add. “Women, in particular, are vulnerable as media and popular culture propagate beauty standards that lighter skin can elevate physical appearance and social acceptance.”

“It is important to recognize that the primary motivator for skin lightening is most often dermatological disease but that, less frequently, it can be colorism,” senior study author Roopal V. Kundu, MD, professor of dermatology and founding director of the Northwestern Center for Ethnic Skin and Hair at Northwestern University, Chicago, said in an email interview.

Skin lightening is a growing, multibillion-dollar, largely unregulated, global industry. Rates have been estimated at 27% in South Africa, 40% in China and South Korea, 77% in Nigeria, but U.S. rates are unknown.

To investigate skin-lightening habits and the role colorism plays in skin-lightening practices in the United States, Dr. Kundu and her colleagues sent an online survey to 578 adults with darker skin who participated in ResearchMatch, a national health registry supported by the National Institutes of Health that connects volunteers with research studies they choose to take part in.

Of the 455 people who completed the 19-item anonymous questionnaire, 238 (52.3%) identified as Black or African American, 83 (18.2%) as Asian, 84 (18.5%) as multiracial, 31 (6.8%) as Hispanic, 14 (3.1%) as American Indian or Alaska Native, and 5 (1.1%) as other. Overall, 364 (80.0%) were women.

The survey asked about demographics, colorism attitudes, skin tone satisfaction, and skin-lightening product use. To assess colorism attitudes, the researchers asked respondents to rate six colorism statements on a Likert scale of 1 (strongly disagree) to 5 (strongly agree). The statements included “Lighter skin tone increases one’s self-esteem,” and “Lighter skin tone increases one’s chance of having a romantic relationship or getting married.” The researchers also asked them to rate their skin satisfaction levels on a Likert scale from 1 (very unsatisfied) to 5 (very satisfied).
 

Used mostly to treat skin conditions

Despite a lack of medical input, about three-quarters of people who used skin-lightening products reported using them for medical conditions, and around one-quarter used them for general lightening, the researchers report.

Of all respondents, 97 (21.3%) reported using skin-lightening agents. Of them, 71 (73.2%) used them to treat a skin condition such as acne, melasma, or postinflammatory hyperpigmentation, and 26 (26.8% of skin-lightening product users; 5.7% of all respondents) used them for generalized skin lightening.

The 97 users mostly obtained skin-lightening products from chain pharmacy and grocery stores, and also from community beauty stores, abroad, online, and medical providers, while two made them at home.

Skin-lightening product use did not differ with age, gender, race or ethnicity, education level, or immigration status.

Only 22 (22.7%) of the product users consulted a medical provider before using the products, and only 14 (14.4%) received skin-lightening products from medical providers.

In addition, 44 respondents (45.4%) could not identify the active ingredient in their skin-lightening products, but 34 (35.1%) reported using hydroquinone-based products. Other reported active ingredients included ascorbic acid, glycolic acid, salicylic acid, niacinamide, steroids, and mercury.

The face (86 people or 88.7%) and neck (37 or 38.1%) were the most common application sites.

Skin-lightening users were more likely to report that lighter skin was more beautiful and that it increased self-esteem and romantic prospects (P < .001 for all).

Elma Baron, MD, professor of dermatology at Case Western Reserve University, Cleveland, advised doctors to remind patients to consult a dermatologist before they use skin-lightening agents. “A dermatologist can evaluate whether there is a true indication for skin-lightening agents and explain the benefits, risks, and limitations of common skin-lightening formulations.

“When dealing with hyperpigmentation, clinicians should remember that ultraviolet light is a potent stimulus for melanogenesis,” added Dr. Baron by email. She was not involved in the study. “Wearing hats and other sun-protective clothing, using sunscreen, and avoiding sunlight during peak hours must always be emphasized.”

Amy J. McMichael, MD, professor of dermatology at Wake Forest University, Winston-Salem, N.C., often sees patients who try products based on persuasive advertising, not scientific benefit, she said by email.

“The findings are important, because many primary care providers and dermatologists do not realize that patients will use skin-lightening agents simply to provide a glow and in an attempt to attain complexion blending,” added Dr. McMichael, also not involved in the study.

She encouraged doctors to understand what motivates their patients to use skin-lightening agents, so they can effectively communicate what works and what does not work for their condition, as well as inform them about potential risks.

Strengths of the study, Dr. McMichael said, are the number of people surveyed and the inclusion of colorism data not typically gathered in studies of skin-lightening product use. Limitations include whether the reported conditions were what people actually had, and that, with over 50% of respondents being Black, the results may not be generalizable to other groups.

“Colorism is complex,” Dr. Kundu noted. “Dermatologists need to recognize how colorism impacts their patients, so they can provide them with culturally mindful care and deter them from using potentially harmful products.”


 

Illegal products may still be available

Dr. McMichael would like to know how many of these patients used products containing > 4%-strength hydroquinone, because they “can be dangerous, and patients don’t understand how these higher-strength medications can damage the skin.”

“Following the Coronavirus Aid, Relief, and Economic Security [CARES] Act of 2020, over-the-counter hydroquinone sales were prohibited in the U.S.,” the authors write. In 2022, the Food and Drug Administration issued warning letters to 12 companies that sold products containing unsafe concentrations of hydroquinone, because of concerns about swelling, rashes, and discoloration. Hydroquinone has also been linked with skin cancer.

“However, this study demonstrates that consumers in the U.S. may still have access to hydroquinone formulations,” the authors caution.

At its Skin Facts! Resources website, the FDA warns about potentially harmful over-the-counter skin-lightening products containing hydroquinone or mercury and recommends using only prescribed products. The information site was created by the FDA Office of Minority Health and Health Equity. 

The study authors, Dr. Baron, and Dr. McMichael report no relevant financial relationships. The study did not receive external funding. All experts commented by email.
 

Many people in the United States who use skin-lightening products don’t check with their doctors beforehand, and most don’t know they may contain hydroquinone, mercury, steroids, or other harmful chemicals, a recent cross-sectional survey suggests.

Skin lightening – which uses chemicals to lighten dark areas of skin or to generally lighten skin tone – poses a health risk from potentially unsafe formulations, the authors write in the International Journal of Women’s Dermatology.

Skin lightening is “influenced by colorism, the system of inequality that affords opportunities and privileges to lighter-skinned individuals across racial/ethnic groups,” they add. “Women, in particular, are vulnerable as media and popular culture propagate beauty standards that lighter skin can elevate physical appearance and social acceptance.”

“It is important to recognize that the primary motivator for skin lightening is most often dermatological disease but that, less frequently, it can be colorism,” senior study author Roopal V. Kundu, MD, professor of dermatology and founding director of the Northwestern Center for Ethnic Skin and Hair at Northwestern University, Chicago, said in an email interview.

Skin lightening is a growing, multibillion-dollar, largely unregulated, global industry. Rates have been estimated at 27% in South Africa, 40% in China and South Korea, 77% in Nigeria, but U.S. rates are unknown.

To investigate skin-lightening habits and the role colorism plays in skin-lightening practices in the United States, Dr. Kundu and her colleagues sent an online survey to 578 adults with darker skin who participated in ResearchMatch, a national health registry supported by the National Institutes of Health that connects volunteers with research studies they choose to take part in.

Of the 455 people who completed the 19-item anonymous questionnaire, 238 (52.3%) identified as Black or African American, 83 (18.2%) as Asian, 84 (18.5%) as multiracial, 31 (6.8%) as Hispanic, 14 (3.1%) as American Indian or Alaska Native, and 5 (1.1%) as other. Overall, 364 (80.0%) were women.

The survey asked about demographics, colorism attitudes, skin tone satisfaction, and skin-lightening product use. To assess colorism attitudes, the researchers asked respondents to rate six colorism statements on a Likert scale of 1 (strongly disagree) to 5 (strongly agree). The statements included “Lighter skin tone increases one’s self-esteem,” and “Lighter skin tone increases one’s chance of having a romantic relationship or getting married.” The researchers also asked them to rate their skin satisfaction levels on a Likert scale from 1 (very unsatisfied) to 5 (very satisfied).
 

Used mostly to treat skin conditions

Despite a lack of medical input, about three-quarters of people who used skin-lightening products reported using them for medical conditions, and around one-quarter used them for general lightening, the researchers report.

Of all respondents, 97 (21.3%) reported using skin-lightening agents. Of them, 71 (73.2%) used them to treat a skin condition such as acne, melasma, or postinflammatory hyperpigmentation, and 26 (26.8% of skin-lightening product users; 5.7% of all respondents) used them for generalized skin lightening.

The 97 users mostly obtained skin-lightening products from chain pharmacy and grocery stores, and also from community beauty stores, abroad, online, and medical providers, while two made them at home.

Skin-lightening product use did not differ with age, gender, race or ethnicity, education level, or immigration status.

Only 22 (22.7%) of the product users consulted a medical provider before using the products, and only 14 (14.4%) received skin-lightening products from medical providers.

In addition, 44 respondents (45.4%) could not identify the active ingredient in their skin-lightening products, but 34 (35.1%) reported using hydroquinone-based products. Other reported active ingredients included ascorbic acid, glycolic acid, salicylic acid, niacinamide, steroids, and mercury.

The face (86 people or 88.7%) and neck (37 or 38.1%) were the most common application sites.

Skin-lightening users were more likely to report that lighter skin was more beautiful and that it increased self-esteem and romantic prospects (P < .001 for all).

Elma Baron, MD, professor of dermatology at Case Western Reserve University, Cleveland, advised doctors to remind patients to consult a dermatologist before they use skin-lightening agents. “A dermatologist can evaluate whether there is a true indication for skin-lightening agents and explain the benefits, risks, and limitations of common skin-lightening formulations.

“When dealing with hyperpigmentation, clinicians should remember that ultraviolet light is a potent stimulus for melanogenesis,” added Dr. Baron by email. She was not involved in the study. “Wearing hats and other sun-protective clothing, using sunscreen, and avoiding sunlight during peak hours must always be emphasized.”

Amy J. McMichael, MD, professor of dermatology at Wake Forest University, Winston-Salem, N.C., often sees patients who try products based on persuasive advertising, not scientific benefit, she said by email.

“The findings are important, because many primary care providers and dermatologists do not realize that patients will use skin-lightening agents simply to provide a glow and in an attempt to attain complexion blending,” added Dr. McMichael, also not involved in the study.

She encouraged doctors to understand what motivates their patients to use skin-lightening agents, so they can effectively communicate what works and what does not work for their condition, as well as inform them about potential risks.

Strengths of the study, Dr. McMichael said, are the number of people surveyed and the inclusion of colorism data not typically gathered in studies of skin-lightening product use. Limitations include whether the reported conditions were what people actually had, and that, with over 50% of respondents being Black, the results may not be generalizable to other groups.

“Colorism is complex,” Dr. Kundu noted. “Dermatologists need to recognize how colorism impacts their patients, so they can provide them with culturally mindful care and deter them from using potentially harmful products.”


 

Illegal products may still be available

Dr. McMichael would like to know how many of these patients used products containing > 4%-strength hydroquinone, because they “can be dangerous, and patients don’t understand how these higher-strength medications can damage the skin.”

“Following the Coronavirus Aid, Relief, and Economic Security [CARES] Act of 2020, over-the-counter hydroquinone sales were prohibited in the U.S.,” the authors write. In 2022, the Food and Drug Administration issued warning letters to 12 companies that sold products containing unsafe concentrations of hydroquinone, because of concerns about swelling, rashes, and discoloration. Hydroquinone has also been linked with skin cancer.

“However, this study demonstrates that consumers in the U.S. may still have access to hydroquinone formulations,” the authors caution.

At its Skin Facts! Resources website, the FDA warns about potentially harmful over-the-counter skin-lightening products containing hydroquinone or mercury and recommends using only prescribed products. The information site was created by the FDA Office of Minority Health and Health Equity. 

The study authors, Dr. Baron, and Dr. McMichael report no relevant financial relationships. The study did not receive external funding. All experts commented by email.
 

Many people in the United States who use skin-lightening products don’t check with their doctors beforehand, and most don’t know they may contain hydroquinone, mercury, steroids, or other harmful chemicals, a recent cross-sectional survey suggests.

Skin lightening – which uses chemicals to lighten dark areas of skin or to generally lighten skin tone – poses a health risk from potentially unsafe formulations, the authors write in the International Journal of Women’s Dermatology.

Skin lightening is “influenced by colorism, the system of inequality that affords opportunities and privileges to lighter-skinned individuals across racial/ethnic groups,” they add. “Women, in particular, are vulnerable as media and popular culture propagate beauty standards that lighter skin can elevate physical appearance and social acceptance.”

“It is important to recognize that the primary motivator for skin lightening is most often dermatological disease but that, less frequently, it can be colorism,” senior study author Roopal V. Kundu, MD, professor of dermatology and founding director of the Northwestern Center for Ethnic Skin and Hair at Northwestern University, Chicago, said in an email interview.

Skin lightening is a growing, multibillion-dollar, largely unregulated, global industry. Rates have been estimated at 27% in South Africa, 40% in China and South Korea, 77% in Nigeria, but U.S. rates are unknown.

To investigate skin-lightening habits and the role colorism plays in skin-lightening practices in the United States, Dr. Kundu and her colleagues sent an online survey to 578 adults with darker skin who participated in ResearchMatch, a national health registry supported by the National Institutes of Health that connects volunteers with research studies they choose to take part in.

Of the 455 people who completed the 19-item anonymous questionnaire, 238 (52.3%) identified as Black or African American, 83 (18.2%) as Asian, 84 (18.5%) as multiracial, 31 (6.8%) as Hispanic, 14 (3.1%) as American Indian or Alaska Native, and 5 (1.1%) as other. Overall, 364 (80.0%) were women.

The survey asked about demographics, colorism attitudes, skin tone satisfaction, and skin-lightening product use. To assess colorism attitudes, the researchers asked respondents to rate six colorism statements on a Likert scale of 1 (strongly disagree) to 5 (strongly agree). The statements included “Lighter skin tone increases one’s self-esteem,” and “Lighter skin tone increases one’s chance of having a romantic relationship or getting married.” The researchers also asked them to rate their skin satisfaction levels on a Likert scale from 1 (very unsatisfied) to 5 (very satisfied).
 

Used mostly to treat skin conditions

Despite a lack of medical input, about three-quarters of people who used skin-lightening products reported using them for medical conditions, and around one-quarter used them for general lightening, the researchers report.

Of all respondents, 97 (21.3%) reported using skin-lightening agents. Of them, 71 (73.2%) used them to treat a skin condition such as acne, melasma, or postinflammatory hyperpigmentation, and 26 (26.8% of skin-lightening product users; 5.7% of all respondents) used them for generalized skin lightening.

The 97 users mostly obtained skin-lightening products from chain pharmacy and grocery stores, and also from community beauty stores, abroad, online, and medical providers, while two made them at home.

Skin-lightening product use did not differ with age, gender, race or ethnicity, education level, or immigration status.

Only 22 (22.7%) of the product users consulted a medical provider before using the products, and only 14 (14.4%) received skin-lightening products from medical providers.

In addition, 44 respondents (45.4%) could not identify the active ingredient in their skin-lightening products, but 34 (35.1%) reported using hydroquinone-based products. Other reported active ingredients included ascorbic acid, glycolic acid, salicylic acid, niacinamide, steroids, and mercury.

The face (86 people or 88.7%) and neck (37 or 38.1%) were the most common application sites.

Skin-lightening users were more likely to report that lighter skin was more beautiful and that it increased self-esteem and romantic prospects (P < .001 for all).

Elma Baron, MD, professor of dermatology at Case Western Reserve University, Cleveland, advised doctors to remind patients to consult a dermatologist before they use skin-lightening agents. “A dermatologist can evaluate whether there is a true indication for skin-lightening agents and explain the benefits, risks, and limitations of common skin-lightening formulations.

“When dealing with hyperpigmentation, clinicians should remember that ultraviolet light is a potent stimulus for melanogenesis,” added Dr. Baron by email. She was not involved in the study. “Wearing hats and other sun-protective clothing, using sunscreen, and avoiding sunlight during peak hours must always be emphasized.”

Amy J. McMichael, MD, professor of dermatology at Wake Forest University, Winston-Salem, N.C., often sees patients who try products based on persuasive advertising, not scientific benefit, she said by email.

“The findings are important, because many primary care providers and dermatologists do not realize that patients will use skin-lightening agents simply to provide a glow and in an attempt to attain complexion blending,” added Dr. McMichael, also not involved in the study.

She encouraged doctors to understand what motivates their patients to use skin-lightening agents, so they can effectively communicate what works and what does not work for their condition, as well as inform them about potential risks.

Strengths of the study, Dr. McMichael said, are the number of people surveyed and the inclusion of colorism data not typically gathered in studies of skin-lightening product use. Limitations include whether the reported conditions were what people actually had, and that, with over 50% of respondents being Black, the results may not be generalizable to other groups.

“Colorism is complex,” Dr. Kundu noted. “Dermatologists need to recognize how colorism impacts their patients, so they can provide them with culturally mindful care and deter them from using potentially harmful products.”


 

Illegal products may still be available

Dr. McMichael would like to know how many of these patients used products containing > 4%-strength hydroquinone, because they “can be dangerous, and patients don’t understand how these higher-strength medications can damage the skin.”

“Following the Coronavirus Aid, Relief, and Economic Security [CARES] Act of 2020, over-the-counter hydroquinone sales were prohibited in the U.S.,” the authors write. In 2022, the Food and Drug Administration issued warning letters to 12 companies that sold products containing unsafe concentrations of hydroquinone, because of concerns about swelling, rashes, and discoloration. Hydroquinone has also been linked with skin cancer.

“However, this study demonstrates that consumers in the U.S. may still have access to hydroquinone formulations,” the authors caution.

At its Skin Facts! Resources website, the FDA warns about potentially harmful over-the-counter skin-lightening products containing hydroquinone or mercury and recommends using only prescribed products. The information site was created by the FDA Office of Minority Health and Health Equity. 

The study authors, Dr. Baron, and Dr. McMichael report no relevant financial relationships. The study did not receive external funding. All experts commented by email.
 

Asian American, Hispanic/Latino, and older individuals appear to have the greatest burden of vitiligo in the United States, according to the results of a cross sectional study.

To investigate the incidence and prevalence of diagnosed vitiligo in the United States, researchers used a 15% random sample of electronic medical records from the IBM Explorys database. Two cohorts were included: 2,980,778 patients diagnosed with vitiligo between Jan. 1, 2015, and Dec. 31, 2019 (incidence analysis), and 1,057,534 patients diagnosed with vitiligo between Jan. 1 and Dec. 31, 2019 (prevalence analysis).The main outcomes were incidence (per 100,000 person-years) and prevalence of diagnosed vitiligo overall and by age, race/ethnicity, and sex. Amit Garg, MD, a dermatologist with Northwell Health, New Hyde Park, N.Y., led the study, which was published in JAMA Dermatology.

The age- and sex-adjusted overall incidence rate of diagnosed vitiligo was 22.6 per 100,000 person-years, and the prevalence was 0.16%, the authors reported. The sex-adjusted IR was highest among patients aged 60-69 years (25.3 per 100,000 person-years); prevalence was highest among patients aged 70 years or older (0.21%).

The highest age-adjusted IR was among Asian American patients (41.2 per 100,000 person-years), followed by Hispanic/Latino patients (37.3 per 100,000 PY), those reporting other or multiple races (31.1 per 100,000), Black patients (29.6 per 100,000 person-years), and White patients (18.7 per 100,000 person-years). The highest age-adjusted prevalence was among Hispanic/Latino patients (0.29%), followed by Asian American patients (0.27%), those reporting other or multiple races (0.24%), Black patients (0.22%), and White patients (0.13%).

The burden of vitiligo in the United States is poorly understood, and the findings “may support improving awareness of vitiligo disease burden in medical and public sectors, informing research agendas, improving enrollment of racial and ethnic minority populations in trials, and developing health policies,” the authors wrote.

Limitations of the study included that the analysis only captured patients who sought care in health systems included in the database, and there was the potential for underreporting, “since not all patients with vitiligo seek care,” the authors noted.

Dr. Garg reported being an adviser for and receiving honoraria from many pharmaceutical companies. He has also received research grants from AbbVie, UCB, the National Psoriasis Foundation, and the CHORD COUSIN Collaboration. No other disclosures were reported.

A version of this article first appeared on Medscape.com .

Asian American, Hispanic/Latino, and older individuals appear to have the greatest burden of vitiligo in the United States, according to the results of a cross sectional study.

To investigate the incidence and prevalence of diagnosed vitiligo in the United States, researchers used a 15% random sample of electronic medical records from the IBM Explorys database. Two cohorts were included: 2,980,778 patients diagnosed with vitiligo between Jan. 1, 2015, and Dec. 31, 2019 (incidence analysis), and 1,057,534 patients diagnosed with vitiligo between Jan. 1 and Dec. 31, 2019 (prevalence analysis).The main outcomes were incidence (per 100,000 person-years) and prevalence of diagnosed vitiligo overall and by age, race/ethnicity, and sex. Amit Garg, MD, a dermatologist with Northwell Health, New Hyde Park, N.Y., led the study, which was published in JAMA Dermatology.

The age- and sex-adjusted overall incidence rate of diagnosed vitiligo was 22.6 per 100,000 person-years, and the prevalence was 0.16%, the authors reported. The sex-adjusted IR was highest among patients aged 60-69 years (25.3 per 100,000 person-years); prevalence was highest among patients aged 70 years or older (0.21%).

The highest age-adjusted IR was among Asian American patients (41.2 per 100,000 person-years), followed by Hispanic/Latino patients (37.3 per 100,000 PY), those reporting other or multiple races (31.1 per 100,000), Black patients (29.6 per 100,000 person-years), and White patients (18.7 per 100,000 person-years). The highest age-adjusted prevalence was among Hispanic/Latino patients (0.29%), followed by Asian American patients (0.27%), those reporting other or multiple races (0.24%), Black patients (0.22%), and White patients (0.13%).

The burden of vitiligo in the United States is poorly understood, and the findings “may support improving awareness of vitiligo disease burden in medical and public sectors, informing research agendas, improving enrollment of racial and ethnic minority populations in trials, and developing health policies,” the authors wrote.

Limitations of the study included that the analysis only captured patients who sought care in health systems included in the database, and there was the potential for underreporting, “since not all patients with vitiligo seek care,” the authors noted.

Dr. Garg reported being an adviser for and receiving honoraria from many pharmaceutical companies. He has also received research grants from AbbVie, UCB, the National Psoriasis Foundation, and the CHORD COUSIN Collaboration. No other disclosures were reported.

A version of this article first appeared on Medscape.com .

Asian American, Hispanic/Latino, and older individuals appear to have the greatest burden of vitiligo in the United States, according to the results of a cross sectional study.

To investigate the incidence and prevalence of diagnosed vitiligo in the United States, researchers used a 15% random sample of electronic medical records from the IBM Explorys database. Two cohorts were included: 2,980,778 patients diagnosed with vitiligo between Jan. 1, 2015, and Dec. 31, 2019 (incidence analysis), and 1,057,534 patients diagnosed with vitiligo between Jan. 1 and Dec. 31, 2019 (prevalence analysis).The main outcomes were incidence (per 100,000 person-years) and prevalence of diagnosed vitiligo overall and by age, race/ethnicity, and sex. Amit Garg, MD, a dermatologist with Northwell Health, New Hyde Park, N.Y., led the study, which was published in JAMA Dermatology.

The age- and sex-adjusted overall incidence rate of diagnosed vitiligo was 22.6 per 100,000 person-years, and the prevalence was 0.16%, the authors reported. The sex-adjusted IR was highest among patients aged 60-69 years (25.3 per 100,000 person-years); prevalence was highest among patients aged 70 years or older (0.21%).

The highest age-adjusted IR was among Asian American patients (41.2 per 100,000 person-years), followed by Hispanic/Latino patients (37.3 per 100,000 PY), those reporting other or multiple races (31.1 per 100,000), Black patients (29.6 per 100,000 person-years), and White patients (18.7 per 100,000 person-years). The highest age-adjusted prevalence was among Hispanic/Latino patients (0.29%), followed by Asian American patients (0.27%), those reporting other or multiple races (0.24%), Black patients (0.22%), and White patients (0.13%).

The burden of vitiligo in the United States is poorly understood, and the findings “may support improving awareness of vitiligo disease burden in medical and public sectors, informing research agendas, improving enrollment of racial and ethnic minority populations in trials, and developing health policies,” the authors wrote.

Limitations of the study included that the analysis only captured patients who sought care in health systems included in the database, and there was the potential for underreporting, “since not all patients with vitiligo seek care,” the authors noted.

Dr. Garg reported being an adviser for and receiving honoraria from many pharmaceutical companies. He has also received research grants from AbbVie, UCB, the National Psoriasis Foundation, and the CHORD COUSIN Collaboration. No other disclosures were reported.

A version of this article first appeared on Medscape.com .

Pigmented purpuric dermatoses (PPDs) are characterized by petechiae, dusky macules representative of postinflammatory hyperpigmentation and dermal hemosiderin, and purpura generally localized to the lower extremities. They typically represent a spectrum of lymphocytic capillaritis, variable erythrocyte extravasation from papillary dermal blood vessels, and deposition of hemosiderin, yielding the classic red to orange to golden-brown findings on gross examination. Clinical overlap exists, but variants include Schamberg disease (SD), Majocchi purpura, Gougerot-Blum purpura, eczematoid purpura of Doucas and Kapetanakis (DK), and lichen aureus.¹ Other forms are rarer, including linear, granulomatous, quadrantic, transitory, and familial variants. It remains controversial whether PPD may precede or have an association with cutaneous T-cell lymphoma.² Dermoscopy usually shows copper-red pigmentation in the background, oval red dots, linear vessels, brown globules, and follicular openings. Although these findings may be useful in PPD diagnosis, they are not applicable in differentiating among the variants.

Pigmented purpuric dermatoses can easily be mistaken for stasis dermatitis or cellulitis, as these may occur concomitantly or in populations at risk for all 3 conditions, such as women older than 50 years with recent trauma or infection in the affected area. Tissue biopsy and clinical laboratory evaluation may be required to differentiate between PPD from leukocytoclastic vasculitis or the myriad causes of retiform purpura. Importantly, clinicians also should differentiate PPD from the purpuric eruptions of the lower extremities associated with COVID-19 infection.

Pigmented Purpuric Dermatoses

Schamberg Disease—In 1901, Jay Frank Schamberg, a distinguished professor of dermatology in Philadelphia, Pennsylvania, described “a peculiar progressive pigmentary disease of the skin” in a 15-year-old adolescent boy.³ Schamberg disease is the most common PPD, characterized by pruritic spots resembling cayenne pepper (Figure 1) with orange-brown pigmented macules on the legs and feet.⁴ Although platelet dysfunction, coagulation deficiencies, or dermal atrophy may contribute to hemorrhaging that manifests as petechiae or ecchymoses, SD typically is not associated with any laboratory abnormalities, and petechial eruption is not widespread.⁵ Capillary fragility can be assessed by the tourniquet test, in which pressure is applied to the forearm with a blood pressure cuff inflated between systolic and diastolic blood pressure for 5 to 10 minutes. Upon removing the cuff, a positive test is indicated by 15 or more petechiae in an area 5 cm in diameter due to poor platelet function. A positive result may be seen in SD.⁶

Histologically, SD is characterized by patchy parakeratosis, mild spongiosis of the stratum Malpighi, and lymphoid capillaritis (Figure 2).⁷ In addition to CD3⁺, CD4⁺, CD8⁺, CD1a⁺, and CD36⁺ lymphocytes, histology also may contain dendritic cells and cellular adhesion molecules (intercellular adhesion molecule 1, epithelial cell adhesion molecule 1) within the superficial perivascular infiltrate.⁸ There is no definitive therapy, but first-line interventions include emollients, topical steroids, and oral antihistamines. Nonpharmacologic management includes compression or support stockings, elevation of the lower extremities, and avoidance of offending medications (if identifiable).¹

Majocchi Purpura—Domenico Majocchi was a renowned Italian dermatologist who described an entity in 1898 that he called purpura annularis telangiectodes, now also known as Majocchi purpura.⁹ It is more common in females, young adults, and children. Majocchi purpura has rarely been reported in families with a possible autosomal-dominant inheritance.¹⁰ Typically, bluish-red annular macules with central atrophy surrounded by hyperpigmentation may be seen on the lower extremities, potentially extending to the upper extremities.¹ Treatment of Majocchi purpura remains a challenge but may respond to narrowband UVB phototherapy. Emollients and topical steroids also are used as first-line treatments. Biopsy demonstrates telangiectasia, pericapillary infiltration of mononuclear lymphocytes, and papillary dermal hemosiderin.¹¹

Gougerot-Blum Purpura—In 1925, French dermatologists Henri Gougerot and Paul Blum described a pigmented purpuric lichenoid dermatitis known as Gougerot-Blum purpura,¹² a rare PPD characterized by lichenoid papules that eventually coalesce into plaques of various colors, along with red-brown hyperpigmentation.⁴ As with other PPD variants, the legs are most involved, with rare extension to the trunk or thighs. The plaques may resemble and be mistaken for Kaposi sarcoma, cutaneous vasculitis, traumatic purpura, or mycosis fungoides. Dermoscopic examination reveals small, polygonal or round, red dots underlying brown scaly patches.¹³ Gougerot-Blum purpura is found more commonly in adult men and rarely affects children.⁴ Histologically, a lichenoid and superficial perivascular infiltrate composed of lymphocytes and macrophages is seen. Various therapies have been described, including topical steroids, antihistamines, psoralen plus UVA phototherapy, and cyclosporin A.¹⁴

Eczematoid Purpura of Doucas and Kapetanakis—In 1949, Greek dermatologists Christopher Doucas and John Kapetanakis observed several cases of purpuric dermatosis similar in form to the “pigmented purpuric lichenoid dermatitis” of Gougerot-Blum purpura¹² and to the “progressive pigmentary dermatitis” of Schamberg disease.³ After observing a gradual disappearance of the classic yellow color from hemosiderin deposition, Doucas and Kapetanakis described a new bright red eruption with lichenification.¹⁵ Eczematoid purpura of Doucas and Kapetanakis is rare and predominantly seen in middle-aged males. Hyperpigmented or dark brown macules may develop bilaterally on the legs, progressing to the thighs and upper extremities. Unlike the other types of PPD, DK is extensive and severely pruritic.⁴

Although most PPD can be drug induced, DK has shown the greatest tendency for pruritic erythematous plaques following drug usage including but not limited to amlodipine, aspirin, acetaminophen, thiamine, interferon alfa, chlordiazepoxide, and isotretinoin. Additionally, DK has been associated with a contact allergy to clothing dyes and rubber.⁴ On histology, epidermal spongiosis may be seen, correlating with the eczematoid clinical findings. Spontaneous remission also is more common compared to the other PPDs. Treatment consists of topical corticosteroids and antihistamines.¹⁶

Lichen Aureus—Lichen aureus was first observed by the dermatologist R.H. Martin in 1958.¹⁷ It is clinically characterized by closely aggregated purpuric papules with a distinctive golden-brown color more often localized to the lower extremities and sometimes in a dermatomal distribution. Lichen aureus affects males and females equally, and similar to Majocchi purpura can be seen in children.⁴ Histopathologic examination reveals a prominent lichenoid plus superficial and deep perivascular lymphocytic infiltrate, extravasated erythrocytes, papillary dermal edema, hemosiderophages, and an unaffected epidermis. In rare cases, perineural infiltrates may be seen. Topical steroids usually are ineffective in lichen aureus treatment, but responses to psoralen plus UVA therapy also have been noted.¹⁷

Differential Diagnosis

COVID-19–Related Cutaneous Changes—Because COVID-19–related pathology is now a common differential diagnosis for many cutaneous eruptions,one must be mindful of the possibility for patients to have PPD, cutaneous changes from underlying COVID-19, or both.¹⁸ The microvascular changes from COVID-19 infection can be variable.¹⁹ Besides the presence of erythema along a distal digit, manifestations can include reticulated dusky erythema mimicking livedoid vasculopathy or inflammatory purpura.¹⁹

Retiform Purpura—Retiform purpura may occur in the setting of microvascular occlusion and can represent the pattern of underlying dermal vasculature. It is nonblanching and typically stellate or branching.²⁰ The microvascular occlusion may be a result of hypercoagulability or may be secondary to cutaneous vasculitis, resulting in thrombosis and subsequent vascular occlusion.²¹ There are many reasons for hypercoagulability in retiform purpura, including disseminated intravascular coagulation in the setting of COVID-19 infection.²² The treatment of retiform purpura is aimed at alleviating the underlying cause and providing symptomatic relief. Conversely, the PPDs generally are benign and require minimal workup.

Leukocytoclastic Vasculitis—The hallmark of leukocytoclastic vasculitis is palpable purpura, often appearing as nonblanchable papules, typically in a dependent distribution such as the lower extremities (Figure 3). Although it primarily affects children, Henoch-Schönlein purpura is a type of leukocytoclastic vasculitis with lesions potentially similar in appearance to those of PPD.²³ Palpable purpura may be painful and may ulcerate but rarely is pruritic. Leukocytoclastic vasculitis represents perivascular infiltrates composed of neutrophils, lymphocytes, and occasionally eosinophils, along with karyorrhexis, luminal fibrin, and fibrinoid degeneration of blood vessel walls, often resulting from immune complex deposition. Leukocytoclastic vasculitis may affect blood vessels of any size and requires further clinical and laboratory evaluation for infection (including COVID-19), hypercoagulability, autoimmune disease, or medication-related reactions.²⁴

Stasis Dermatitis—Stasis dermatitis, a chronic inflammatory condition stemming from retrograde venous flow due to incompetent venous valves, mimics PPD. Stasis dermatitis initially appears as demarcated erythematous plaques, fissures, and scaling of the lower legs bilaterally, usually involving the medial malleolus.²⁵ With time, the affected region develops overlying brawny hyperpigmentation and fibrosis (Figure 4). Pruritus or pain are common features, while fissures and superficial erosions may heal and recur, leading to lichenification.

Although both commonly appear on the lower extremities, duplex ultrasonography may be helpful to distinguish PPDs from stasis dermatitis since the latter occurs in the context of chronic venous insufficiency, varicose veins, soft tissue edema, and lymphedema.²⁵ Additionally, pruritus, lichenification, and edema often are not seen in most PPD variants, although stasis dermatitis and PPD may occur in tandem. Conservative treatment involves elevation of the extremities, compression, and topical steroids for symptomatic relief.

Cellulitis—The key characteristics of cellulitis are redness, swelling, warmth, tenderness, fever, and leukocytosis. A history of trauma, such as a prior break in the skin, and pain in the affected area suggest cellulitis. Several skin conditions present similarly to cellulitis, including PPD, and thus approximately 30% of cases are misdiagnosed.²⁶ Cellulitis rarely presents in a bilateral or diffusely scattered pattern as seen in PPDs. Rather, it is unilateral with smooth indistinct borders. Variables suggestive of cellulitis include immunosuppression, rapid progression, and previous occurrences. Hyperpigmented plaques or thickening of the skin are more indicative of a chronic process such as stasis dermatitis or lipodermatosclerosis rather than acute cellulitis. Purpura is not a typical finding in most cases of soft tissue cellulitis. Treatment may be case specific depending on severity, presence or absence of sepsis, findings on blood cultures, or other pathologic evaluation. Antibiotics are directed to the causative organism, typically Streptococcus and Staphylococcus species, although coverage against various gram-negative organisms may be indicated.²⁷

Caution With Teledermatology

COVID-19 has established the value of telemedicine in providing access to health care services for at-risk or underserved individuals. The PPDs are benign, often asymptomatic, and potentially identifiable with teledermatology alone; however, they also can easily be mistaken for COVID-19–related eruptions, vasculitis, other types of purpura, stasis dermatitis, or other complications of lower extremity stasis and lymphedema, especially in an aging population. If tissue biopsy is required, as in the workup of vasculitis, the efficacy of telemedicine becomes more questionable. It is important to delineate the potentially confusing PPDs from other potentially dangerous or life-threatening inflammatory dermatoses.²⁸

Pigmented purpuric dermatoses (PPDs) are characterized by petechiae, dusky macules representative of postinflammatory hyperpigmentation and dermal hemosiderin, and purpura generally localized to the lower extremities. They typically represent a spectrum of lymphocytic capillaritis, variable erythrocyte extravasation from papillary dermal blood vessels, and deposition of hemosiderin, yielding the classic red to orange to golden-brown findings on gross examination. Clinical overlap exists, but variants include Schamberg disease (SD), Majocchi purpura, Gougerot-Blum purpura, eczematoid purpura of Doucas and Kapetanakis (DK), and lichen aureus.¹ Other forms are rarer, including linear, granulomatous, quadrantic, transitory, and familial variants. It remains controversial whether PPD may precede or have an association with cutaneous T-cell lymphoma.² Dermoscopy usually shows copper-red pigmentation in the background, oval red dots, linear vessels, brown globules, and follicular openings. Although these findings may be useful in PPD diagnosis, they are not applicable in differentiating among the variants.

Pigmented purpuric dermatoses can easily be mistaken for stasis dermatitis or cellulitis, as these may occur concomitantly or in populations at risk for all 3 conditions, such as women older than 50 years with recent trauma or infection in the affected area. Tissue biopsy and clinical laboratory evaluation may be required to differentiate between PPD from leukocytoclastic vasculitis or the myriad causes of retiform purpura. Importantly, clinicians also should differentiate PPD from the purpuric eruptions of the lower extremities associated with COVID-19 infection.

Pigmented Purpuric Dermatoses

Schamberg Disease—In 1901, Jay Frank Schamberg, a distinguished professor of dermatology in Philadelphia, Pennsylvania, described “a peculiar progressive pigmentary disease of the skin” in a 15-year-old adolescent boy.³ Schamberg disease is the most common PPD, characterized by pruritic spots resembling cayenne pepper (Figure 1) with orange-brown pigmented macules on the legs and feet.⁴ Although platelet dysfunction, coagulation deficiencies, or dermal atrophy may contribute to hemorrhaging that manifests as petechiae or ecchymoses, SD typically is not associated with any laboratory abnormalities, and petechial eruption is not widespread.⁵ Capillary fragility can be assessed by the tourniquet test, in which pressure is applied to the forearm with a blood pressure cuff inflated between systolic and diastolic blood pressure for 5 to 10 minutes. Upon removing the cuff, a positive test is indicated by 15 or more petechiae in an area 5 cm in diameter due to poor platelet function. A positive result may be seen in SD.⁶

Histologically, SD is characterized by patchy parakeratosis, mild spongiosis of the stratum Malpighi, and lymphoid capillaritis (Figure 2).⁷ In addition to CD3⁺, CD4⁺, CD8⁺, CD1a⁺, and CD36⁺ lymphocytes, histology also may contain dendritic cells and cellular adhesion molecules (intercellular adhesion molecule 1, epithelial cell adhesion molecule 1) within the superficial perivascular infiltrate.⁸ There is no definitive therapy, but first-line interventions include emollients, topical steroids, and oral antihistamines. Nonpharmacologic management includes compression or support stockings, elevation of the lower extremities, and avoidance of offending medications (if identifiable).¹

Majocchi Purpura—Domenico Majocchi was a renowned Italian dermatologist who described an entity in 1898 that he called purpura annularis telangiectodes, now also known as Majocchi purpura.⁹ It is more common in females, young adults, and children. Majocchi purpura has rarely been reported in families with a possible autosomal-dominant inheritance.¹⁰ Typically, bluish-red annular macules with central atrophy surrounded by hyperpigmentation may be seen on the lower extremities, potentially extending to the upper extremities.¹ Treatment of Majocchi purpura remains a challenge but may respond to narrowband UVB phototherapy. Emollients and topical steroids also are used as first-line treatments. Biopsy demonstrates telangiectasia, pericapillary infiltration of mononuclear lymphocytes, and papillary dermal hemosiderin.¹¹

Gougerot-Blum Purpura—In 1925, French dermatologists Henri Gougerot and Paul Blum described a pigmented purpuric lichenoid dermatitis known as Gougerot-Blum purpura,¹² a rare PPD characterized by lichenoid papules that eventually coalesce into plaques of various colors, along with red-brown hyperpigmentation.⁴ As with other PPD variants, the legs are most involved, with rare extension to the trunk or thighs. The plaques may resemble and be mistaken for Kaposi sarcoma, cutaneous vasculitis, traumatic purpura, or mycosis fungoides. Dermoscopic examination reveals small, polygonal or round, red dots underlying brown scaly patches.¹³ Gougerot-Blum purpura is found more commonly in adult men and rarely affects children.⁴ Histologically, a lichenoid and superficial perivascular infiltrate composed of lymphocytes and macrophages is seen. Various therapies have been described, including topical steroids, antihistamines, psoralen plus UVA phototherapy, and cyclosporin A.¹⁴

Eczematoid Purpura of Doucas and Kapetanakis—In 1949, Greek dermatologists Christopher Doucas and John Kapetanakis observed several cases of purpuric dermatosis similar in form to the “pigmented purpuric lichenoid dermatitis” of Gougerot-Blum purpura¹² and to the “progressive pigmentary dermatitis” of Schamberg disease.³ After observing a gradual disappearance of the classic yellow color from hemosiderin deposition, Doucas and Kapetanakis described a new bright red eruption with lichenification.¹⁵ Eczematoid purpura of Doucas and Kapetanakis is rare and predominantly seen in middle-aged males. Hyperpigmented or dark brown macules may develop bilaterally on the legs, progressing to the thighs and upper extremities. Unlike the other types of PPD, DK is extensive and severely pruritic.⁴

Although most PPD can be drug induced, DK has shown the greatest tendency for pruritic erythematous plaques following drug usage including but not limited to amlodipine, aspirin, acetaminophen, thiamine, interferon alfa, chlordiazepoxide, and isotretinoin. Additionally, DK has been associated with a contact allergy to clothing dyes and rubber.⁴ On histology, epidermal spongiosis may be seen, correlating with the eczematoid clinical findings. Spontaneous remission also is more common compared to the other PPDs. Treatment consists of topical corticosteroids and antihistamines.¹⁶

Lichen Aureus—Lichen aureus was first observed by the dermatologist R.H. Martin in 1958.¹⁷ It is clinically characterized by closely aggregated purpuric papules with a distinctive golden-brown color more often localized to the lower extremities and sometimes in a dermatomal distribution. Lichen aureus affects males and females equally, and similar to Majocchi purpura can be seen in children.⁴ Histopathologic examination reveals a prominent lichenoid plus superficial and deep perivascular lymphocytic infiltrate, extravasated erythrocytes, papillary dermal edema, hemosiderophages, and an unaffected epidermis. In rare cases, perineural infiltrates may be seen. Topical steroids usually are ineffective in lichen aureus treatment, but responses to psoralen plus UVA therapy also have been noted.¹⁷

Differential Diagnosis

COVID-19–Related Cutaneous Changes—Because COVID-19–related pathology is now a common differential diagnosis for many cutaneous eruptions,one must be mindful of the possibility for patients to have PPD, cutaneous changes from underlying COVID-19, or both.¹⁸ The microvascular changes from COVID-19 infection can be variable.¹⁹ Besides the presence of erythema along a distal digit, manifestations can include reticulated dusky erythema mimicking livedoid vasculopathy or inflammatory purpura.¹⁹

Retiform Purpura—Retiform purpura may occur in the setting of microvascular occlusion and can represent the pattern of underlying dermal vasculature. It is nonblanching and typically stellate or branching.²⁰ The microvascular occlusion may be a result of hypercoagulability or may be secondary to cutaneous vasculitis, resulting in thrombosis and subsequent vascular occlusion.²¹ There are many reasons for hypercoagulability in retiform purpura, including disseminated intravascular coagulation in the setting of COVID-19 infection.²² The treatment of retiform purpura is aimed at alleviating the underlying cause and providing symptomatic relief. Conversely, the PPDs generally are benign and require minimal workup.

Leukocytoclastic Vasculitis—The hallmark of leukocytoclastic vasculitis is palpable purpura, often appearing as nonblanchable papules, typically in a dependent distribution such as the lower extremities (Figure 3). Although it primarily affects children, Henoch-Schönlein purpura is a type of leukocytoclastic vasculitis with lesions potentially similar in appearance to those of PPD.²³ Palpable purpura may be painful and may ulcerate but rarely is pruritic. Leukocytoclastic vasculitis represents perivascular infiltrates composed of neutrophils, lymphocytes, and occasionally eosinophils, along with karyorrhexis, luminal fibrin, and fibrinoid degeneration of blood vessel walls, often resulting from immune complex deposition. Leukocytoclastic vasculitis may affect blood vessels of any size and requires further clinical and laboratory evaluation for infection (including COVID-19), hypercoagulability, autoimmune disease, or medication-related reactions.²⁴

Stasis Dermatitis—Stasis dermatitis, a chronic inflammatory condition stemming from retrograde venous flow due to incompetent venous valves, mimics PPD. Stasis dermatitis initially appears as demarcated erythematous plaques, fissures, and scaling of the lower legs bilaterally, usually involving the medial malleolus.²⁵ With time, the affected region develops overlying brawny hyperpigmentation and fibrosis (Figure 4). Pruritus or pain are common features, while fissures and superficial erosions may heal and recur, leading to lichenification.

Although both commonly appear on the lower extremities, duplex ultrasonography may be helpful to distinguish PPDs from stasis dermatitis since the latter occurs in the context of chronic venous insufficiency, varicose veins, soft tissue edema, and lymphedema.²⁵ Additionally, pruritus, lichenification, and edema often are not seen in most PPD variants, although stasis dermatitis and PPD may occur in tandem. Conservative treatment involves elevation of the extremities, compression, and topical steroids for symptomatic relief.

Cellulitis—The key characteristics of cellulitis are redness, swelling, warmth, tenderness, fever, and leukocytosis. A history of trauma, such as a prior break in the skin, and pain in the affected area suggest cellulitis. Several skin conditions present similarly to cellulitis, including PPD, and thus approximately 30% of cases are misdiagnosed.²⁶ Cellulitis rarely presents in a bilateral or diffusely scattered pattern as seen in PPDs. Rather, it is unilateral with smooth indistinct borders. Variables suggestive of cellulitis include immunosuppression, rapid progression, and previous occurrences. Hyperpigmented plaques or thickening of the skin are more indicative of a chronic process such as stasis dermatitis or lipodermatosclerosis rather than acute cellulitis. Purpura is not a typical finding in most cases of soft tissue cellulitis. Treatment may be case specific depending on severity, presence or absence of sepsis, findings on blood cultures, or other pathologic evaluation. Antibiotics are directed to the causative organism, typically Streptococcus and Staphylococcus species, although coverage against various gram-negative organisms may be indicated.²⁷

Caution With Teledermatology

COVID-19 has established the value of telemedicine in providing access to health care services for at-risk or underserved individuals. The PPDs are benign, often asymptomatic, and potentially identifiable with teledermatology alone; however, they also can easily be mistaken for COVID-19–related eruptions, vasculitis, other types of purpura, stasis dermatitis, or other complications of lower extremity stasis and lymphedema, especially in an aging population. If tissue biopsy is required, as in the workup of vasculitis, the efficacy of telemedicine becomes more questionable. It is important to delineate the potentially confusing PPDs from other potentially dangerous or life-threatening inflammatory dermatoses.²⁸

Pigmented purpuric dermatoses (PPDs) are characterized by petechiae, dusky macules representative of postinflammatory hyperpigmentation and dermal hemosiderin, and purpura generally localized to the lower extremities. They typically represent a spectrum of lymphocytic capillaritis, variable erythrocyte extravasation from papillary dermal blood vessels, and deposition of hemosiderin, yielding the classic red to orange to golden-brown findings on gross examination. Clinical overlap exists, but variants include Schamberg disease (SD), Majocchi purpura, Gougerot-Blum purpura, eczematoid purpura of Doucas and Kapetanakis (DK), and lichen aureus.¹ Other forms are rarer, including linear, granulomatous, quadrantic, transitory, and familial variants. It remains controversial whether PPD may precede or have an association with cutaneous T-cell lymphoma.² Dermoscopy usually shows copper-red pigmentation in the background, oval red dots, linear vessels, brown globules, and follicular openings. Although these findings may be useful in PPD diagnosis, they are not applicable in differentiating among the variants.

Pigmented purpuric dermatoses can easily be mistaken for stasis dermatitis or cellulitis, as these may occur concomitantly or in populations at risk for all 3 conditions, such as women older than 50 years with recent trauma or infection in the affected area. Tissue biopsy and clinical laboratory evaluation may be required to differentiate between PPD from leukocytoclastic vasculitis or the myriad causes of retiform purpura. Importantly, clinicians also should differentiate PPD from the purpuric eruptions of the lower extremities associated with COVID-19 infection.

Pigmented Purpuric Dermatoses

Schamberg Disease—In 1901, Jay Frank Schamberg, a distinguished professor of dermatology in Philadelphia, Pennsylvania, described “a peculiar progressive pigmentary disease of the skin” in a 15-year-old adolescent boy.³ Schamberg disease is the most common PPD, characterized by pruritic spots resembling cayenne pepper (Figure 1) with orange-brown pigmented macules on the legs and feet.⁴ Although platelet dysfunction, coagulation deficiencies, or dermal atrophy may contribute to hemorrhaging that manifests as petechiae or ecchymoses, SD typically is not associated with any laboratory abnormalities, and petechial eruption is not widespread.⁵ Capillary fragility can be assessed by the tourniquet test, in which pressure is applied to the forearm with a blood pressure cuff inflated between systolic and diastolic blood pressure for 5 to 10 minutes. Upon removing the cuff, a positive test is indicated by 15 or more petechiae in an area 5 cm in diameter due to poor platelet function. A positive result may be seen in SD.⁶

Histologically, SD is characterized by patchy parakeratosis, mild spongiosis of the stratum Malpighi, and lymphoid capillaritis (Figure 2).⁷ In addition to CD3⁺, CD4⁺, CD8⁺, CD1a⁺, and CD36⁺ lymphocytes, histology also may contain dendritic cells and cellular adhesion molecules (intercellular adhesion molecule 1, epithelial cell adhesion molecule 1) within the superficial perivascular infiltrate.⁸ There is no definitive therapy, but first-line interventions include emollients, topical steroids, and oral antihistamines. Nonpharmacologic management includes compression or support stockings, elevation of the lower extremities, and avoidance of offending medications (if identifiable).¹

Majocchi Purpura—Domenico Majocchi was a renowned Italian dermatologist who described an entity in 1898 that he called purpura annularis telangiectodes, now also known as Majocchi purpura.⁹ It is more common in females, young adults, and children. Majocchi purpura has rarely been reported in families with a possible autosomal-dominant inheritance.¹⁰ Typically, bluish-red annular macules with central atrophy surrounded by hyperpigmentation may be seen on the lower extremities, potentially extending to the upper extremities.¹ Treatment of Majocchi purpura remains a challenge but may respond to narrowband UVB phototherapy. Emollients and topical steroids also are used as first-line treatments. Biopsy demonstrates telangiectasia, pericapillary infiltration of mononuclear lymphocytes, and papillary dermal hemosiderin.¹¹

Gougerot-Blum Purpura—In 1925, French dermatologists Henri Gougerot and Paul Blum described a pigmented purpuric lichenoid dermatitis known as Gougerot-Blum purpura,¹² a rare PPD characterized by lichenoid papules that eventually coalesce into plaques of various colors, along with red-brown hyperpigmentation.⁴ As with other PPD variants, the legs are most involved, with rare extension to the trunk or thighs. The plaques may resemble and be mistaken for Kaposi sarcoma, cutaneous vasculitis, traumatic purpura, or mycosis fungoides. Dermoscopic examination reveals small, polygonal or round, red dots underlying brown scaly patches.¹³ Gougerot-Blum purpura is found more commonly in adult men and rarely affects children.⁴ Histologically, a lichenoid and superficial perivascular infiltrate composed of lymphocytes and macrophages is seen. Various therapies have been described, including topical steroids, antihistamines, psoralen plus UVA phototherapy, and cyclosporin A.¹⁴

Eczematoid Purpura of Doucas and Kapetanakis—In 1949, Greek dermatologists Christopher Doucas and John Kapetanakis observed several cases of purpuric dermatosis similar in form to the “pigmented purpuric lichenoid dermatitis” of Gougerot-Blum purpura¹² and to the “progressive pigmentary dermatitis” of Schamberg disease.³ After observing a gradual disappearance of the classic yellow color from hemosiderin deposition, Doucas and Kapetanakis described a new bright red eruption with lichenification.¹⁵ Eczematoid purpura of Doucas and Kapetanakis is rare and predominantly seen in middle-aged males. Hyperpigmented or dark brown macules may develop bilaterally on the legs, progressing to the thighs and upper extremities. Unlike the other types of PPD, DK is extensive and severely pruritic.⁴

Although most PPD can be drug induced, DK has shown the greatest tendency for pruritic erythematous plaques following drug usage including but not limited to amlodipine, aspirin, acetaminophen, thiamine, interferon alfa, chlordiazepoxide, and isotretinoin. Additionally, DK has been associated with a contact allergy to clothing dyes and rubber.⁴ On histology, epidermal spongiosis may be seen, correlating with the eczematoid clinical findings. Spontaneous remission also is more common compared to the other PPDs. Treatment consists of topical corticosteroids and antihistamines.¹⁶

Lichen Aureus—Lichen aureus was first observed by the dermatologist R.H. Martin in 1958.¹⁷ It is clinically characterized by closely aggregated purpuric papules with a distinctive golden-brown color more often localized to the lower extremities and sometimes in a dermatomal distribution. Lichen aureus affects males and females equally, and similar to Majocchi purpura can be seen in children.⁴ Histopathologic examination reveals a prominent lichenoid plus superficial and deep perivascular lymphocytic infiltrate, extravasated erythrocytes, papillary dermal edema, hemosiderophages, and an unaffected epidermis. In rare cases, perineural infiltrates may be seen. Topical steroids usually are ineffective in lichen aureus treatment, but responses to psoralen plus UVA therapy also have been noted.¹⁷

Differential Diagnosis

COVID-19–Related Cutaneous Changes—Because COVID-19–related pathology is now a common differential diagnosis for many cutaneous eruptions,one must be mindful of the possibility for patients to have PPD, cutaneous changes from underlying COVID-19, or both.¹⁸ The microvascular changes from COVID-19 infection can be variable.¹⁹ Besides the presence of erythema along a distal digit, manifestations can include reticulated dusky erythema mimicking livedoid vasculopathy or inflammatory purpura.¹⁹

Retiform Purpura—Retiform purpura may occur in the setting of microvascular occlusion and can represent the pattern of underlying dermal vasculature. It is nonblanching and typically stellate or branching.²⁰ The microvascular occlusion may be a result of hypercoagulability or may be secondary to cutaneous vasculitis, resulting in thrombosis and subsequent vascular occlusion.²¹ There are many reasons for hypercoagulability in retiform purpura, including disseminated intravascular coagulation in the setting of COVID-19 infection.²² The treatment of retiform purpura is aimed at alleviating the underlying cause and providing symptomatic relief. Conversely, the PPDs generally are benign and require minimal workup.

Leukocytoclastic Vasculitis—The hallmark of leukocytoclastic vasculitis is palpable purpura, often appearing as nonblanchable papules, typically in a dependent distribution such as the lower extremities (Figure 3). Although it primarily affects children, Henoch-Schönlein purpura is a type of leukocytoclastic vasculitis with lesions potentially similar in appearance to those of PPD.²³ Palpable purpura may be painful and may ulcerate but rarely is pruritic. Leukocytoclastic vasculitis represents perivascular infiltrates composed of neutrophils, lymphocytes, and occasionally eosinophils, along with karyorrhexis, luminal fibrin, and fibrinoid degeneration of blood vessel walls, often resulting from immune complex deposition. Leukocytoclastic vasculitis may affect blood vessels of any size and requires further clinical and laboratory evaluation for infection (including COVID-19), hypercoagulability, autoimmune disease, or medication-related reactions.²⁴

Stasis Dermatitis—Stasis dermatitis, a chronic inflammatory condition stemming from retrograde venous flow due to incompetent venous valves, mimics PPD. Stasis dermatitis initially appears as demarcated erythematous plaques, fissures, and scaling of the lower legs bilaterally, usually involving the medial malleolus.²⁵ With time, the affected region develops overlying brawny hyperpigmentation and fibrosis (Figure 4). Pruritus or pain are common features, while fissures and superficial erosions may heal and recur, leading to lichenification.

Although both commonly appear on the lower extremities, duplex ultrasonography may be helpful to distinguish PPDs from stasis dermatitis since the latter occurs in the context of chronic venous insufficiency, varicose veins, soft tissue edema, and lymphedema.²⁵ Additionally, pruritus, lichenification, and edema often are not seen in most PPD variants, although stasis dermatitis and PPD may occur in tandem. Conservative treatment involves elevation of the extremities, compression, and topical steroids for symptomatic relief.

Cellulitis—The key characteristics of cellulitis are redness, swelling, warmth, tenderness, fever, and leukocytosis. A history of trauma, such as a prior break in the skin, and pain in the affected area suggest cellulitis. Several skin conditions present similarly to cellulitis, including PPD, and thus approximately 30% of cases are misdiagnosed.²⁶ Cellulitis rarely presents in a bilateral or diffusely scattered pattern as seen in PPDs. Rather, it is unilateral with smooth indistinct borders. Variables suggestive of cellulitis include immunosuppression, rapid progression, and previous occurrences. Hyperpigmented plaques or thickening of the skin are more indicative of a chronic process such as stasis dermatitis or lipodermatosclerosis rather than acute cellulitis. Purpura is not a typical finding in most cases of soft tissue cellulitis. Treatment may be case specific depending on severity, presence or absence of sepsis, findings on blood cultures, or other pathologic evaluation. Antibiotics are directed to the causative organism, typically Streptococcus and Staphylococcus species, although coverage against various gram-negative organisms may be indicated.²⁷

Caution With Teledermatology

COVID-19 has established the value of telemedicine in providing access to health care services for at-risk or underserved individuals. The PPDs are benign, often asymptomatic, and potentially identifiable with teledermatology alone; however, they also can easily be mistaken for COVID-19–related eruptions, vasculitis, other types of purpura, stasis dermatitis, or other complications of lower extremity stasis and lymphedema, especially in an aging population. If tissue biopsy is required, as in the workup of vasculitis, the efficacy of telemedicine becomes more questionable. It is important to delineate the potentially confusing PPDs from other potentially dangerous or life-threatening inflammatory dermatoses.²⁸

The talent show, the grand finale of the 1-week camp, was nearly 7 years ago, but Emily Haygood of Houston, now 17 and about to start her senior year, remembers it in detail. She sang “Death of a Bachelor,” an R&B pop song and Billboard No. 1 hit at the time about a former bachelor who had happily married. These days, she said, if she watched the video of her 10-year-old singing self, “I would probably throw up.” But she still treasures the audience response, “having all those people I’d gotten close to cheer for me.”

Emily was at Camp Discovery in Burton, Tex., one of four camps sponsored by the American Academy of Dermatology for children and teens with chronic skin conditions. The diagnoses cover a range, but share one feature: they are the kind of dermatologic issues that can make doing everyday kid or teen activities like swimming difficult and can elicit mean comments from classmates and other would-be friends.

Amber Haygood

Emily was first diagnosed with atopic dermatitis at age 4, her mother, Amber Haygood, says. By age 9, it had become severe. Emily remembers being teased some in elementary school. “I did feel bad a lot of the time, when asked insensitive questions.” Her mother still bristles that adults often could be cruel, too.

But at Camp Discovery, those issues were nonexistent. “Camp was so cool,” Emily said. Besides the usual camp activities, it had things that “normal” camp didn’t, like other kids who didn’t stare at your skin condition or make fun of it.

30th anniversary season begins

This year is the 30th anniversary of Camp Discovery. Sessions began July 23 and continue through Aug. 18, with locations in Crosslake, Minn.; Hebron, Conn.; and Millville, Pa., in addition to Burton, Tex. About 300 campers will attend this year, according to the AAD, and 6,151 campers have attended from 1993 to 2022.

Amber Haygood.

The 1-week camp accepts youth with conditions ranging from eczema and psoriasis to vitiligo, alopecia, epidermolysis bullosa, and ichthyosis, according to the academy. A dermatologist first refers a child, downloading and completing the referral form and sending it to the academy.

The 1-week session, including travel, is free for the campers, thanks to donors. As a nonprofit and membership-based organization, the AAD does not release the detailed financial information about the operating budget for the camp. Dermatologists, nurses, and counselors volunteer their time.

In his presidential address at the AAD’s annual meeting in March, outgoing president Mark D. Kaufmann, MD, of the department of dermatology at the Icahn School of Medicine at Mount Sinai in New York, referred to camp volunteering as an antidote to professional burnout. Remembering why as a dermatologist one entered the profession can be one solution, he said, and described his own recent 3-day volunteer stint at the camp.

“Those 3 magical days, being with kids as they discovered they weren’t alone in the world, sharing their experiences and ideas, reminded me why I became a physician in the first place,” he told the audience of meeting attendees. He vowed to expand the program, with a goal of having every dermatology resident attend Camp Discovery.
 

Mental health effects of skin conditions

Much research has focused on the mental health fallout from living with chronic skin conditions, and even young children can be adversely affected. In one review of the literature, researchers concluded that pediatric skin disease, including acne, atopic dermatitis, and psoriasis, can affect quality of life, carry stigma, and lead to bullying and eventually even suicidal behavior. Another study, published earlier this year, found that atopic dermatitis affected children’s quality of life, impacting sleep and leading to feelings of being ashamed.

American Academy of Dermatology

“It’s not necessarily about what their skin condition is and more about the psychosocial impact,’’ said Samantha Hill, MD, a pediatric and general dermatologist in Lynchburg, Va., who is the medical director of Camp Discovery in Minnesota this year.

Camp activities, reactions

The overriding theme of camp is allowing all the youth to be “just one of the kids at camp,” Dr. Hill said in an interview. “They come to do all kinds of things they don’t do in normal life because people don’t give them the credit to [be able to] do it.”

American Academy of Dermatology

Every year, she said, “I tell my staff we are in the business of making things happen, so if there is a kid bandaged head to toe [because of a skin condition] and they want to go tubing and get in the lake, we figure out how to make it happen. We have done that multiple times.”

Newcomers are initially nervous, Dr. Hill acknowledged, but in time let their guard down. Returnees are a different story. “When kids who have been at camp before arrive, you can see them start breathing again, looking for their friends. You can see them relax right before your eyes.”

“The single most empowering thing is the realization you are not alone,” said Meena Julapalli, MD, a Houston dermatologist who is a medical team member and long-time volunteer at Camp Discovery. That, she said, and “You get to be a kid, and you don’t have to have people staring at you.”

Janica Boles

Dr. Julapalli remembers one of her patients with keratitis-ichthyosis-deafness (KID) syndrome. “She needed more than what I could offer,” she said. “She needed camp.” At camp, the organizers found a counselor who knew sign language to accompany her. At first, she was quiet and didn’t smile much. By the end of the week, as she was about to observe her birthday, things changed. After breakfast, she was led to the stage, where fellow campers began singing – and signing the song they had just learned.
 

Camp staff gets it

Allyson Garin, who was diagnosed with vitiligo at age 6 months, is a camp program director at Camp Discovery in Crosslake, Minn. She first went to camp in 1990 at age 11, returning until she “aged out” at 16, then worked as a counselor. She gets it when campers tell her they hear rude comments about their skin conditions.

Allyson Garin

“I remember being in swimming pools, in lines at fairgrounds or amusement parks,” she said in an interview, “and hearing people say, ‘Don’t touch her,’ ’’ fearing contagion, perhaps. “People would make jokes about cows, since they are spotted,” she said, or people would simply step back.

All those years ago, her mother found out about the camp and decided to figure out how to get her there. She got there, and she met a fellow camper with vitiligo, and they became pen pals. “We still talk,” she said.

Meeting someone with the same skin condition, she said, isn’t just about commiserating. “There is a lot of information sharing,” on topics such as best treatments, strategies, and other conversations.

Other lessons

While campers can feel comfortable around others who also have skin conditions, and understand, the lesson extends beyond that, Ms. Garin said. “It gave me a perspective,” she said of her camp experience. “I always felt, ‘Woe is me.’ ” But when she met others with, as she said, conditions “way worse than vitiligo, it really grounds you.”

Dr. Hill agreed. Campers get the benefit of others accepting and including them, but also practicing that same attitude toward fellow campers, she said. “It insures that we are providing this environment of inclusion, but that they are practicing it as well. They need to practice it like everyone else.”

Getting parents on board

The idea of camp, especially for those at the younger end of the 8- to 16-years age range accepted for Camp Discovery, can take some getting used to for some parents. Ms. Haygood, Emily’s mother, relates to that. Her daughter’s dermatologist at the time, who is now retired, had first suggested the camp. Her first reaction? “I am not sending my chronically ill child to camp with strangers.” She also acknowledged that she, like other parents of children with a chronic illness, can be a helicopter parent.

Amber Haygood

Then, she noticed that Emily seemed interested, so she got more information, finding out that it was staffed by doctors. It all sounded good, she said, and the social interaction, she knew, would be beneficial. “Then my husband was a no,” she said, concerned about their daughter being with strangers. “Eventually he came around,” Ms. Haygood said. All along, Emily said, “it seemed fun. I was probably trying to talk them into it.” She admits she was very nervous at first, but calmed down when she realized her own dermatologist was going to be there.

Vanessa Hadley of Spring, Tex., was on board the moment she heard about Camp Discovery. “I just thought it was amazing,” she said. Her daughter Isabelle, 13, has been to the camp. “She has alopecia areata and severe eczema,” Ms. Hadley said. Now, Isabelle is returning to camp and coaching her sister Penelope, 8, who has eczema and mild alopecia and is a first-timer this summer.

One tip the 8-year-old has learned so far: Turn to your counselor for support if you’re nervous. That worked, Isabelle said, the first year when she was wary of the zipline – then surprised herself and conquered it.

Dr. Hill and Dr. Julapalli have no disclosures.

The talent show, the grand finale of the 1-week camp, was nearly 7 years ago, but Emily Haygood of Houston, now 17 and about to start her senior year, remembers it in detail. She sang “Death of a Bachelor,” an R&B pop song and Billboard No. 1 hit at the time about a former bachelor who had happily married. These days, she said, if she watched the video of her 10-year-old singing self, “I would probably throw up.” But she still treasures the audience response, “having all those people I’d gotten close to cheer for me.”

Emily was at Camp Discovery in Burton, Tex., one of four camps sponsored by the American Academy of Dermatology for children and teens with chronic skin conditions. The diagnoses cover a range, but share one feature: they are the kind of dermatologic issues that can make doing everyday kid or teen activities like swimming difficult and can elicit mean comments from classmates and other would-be friends.

Amber Haygood

Emily was first diagnosed with atopic dermatitis at age 4, her mother, Amber Haygood, says. By age 9, it had become severe. Emily remembers being teased some in elementary school. “I did feel bad a lot of the time, when asked insensitive questions.” Her mother still bristles that adults often could be cruel, too.

But at Camp Discovery, those issues were nonexistent. “Camp was so cool,” Emily said. Besides the usual camp activities, it had things that “normal” camp didn’t, like other kids who didn’t stare at your skin condition or make fun of it.

30th anniversary season begins

This year is the 30th anniversary of Camp Discovery. Sessions began July 23 and continue through Aug. 18, with locations in Crosslake, Minn.; Hebron, Conn.; and Millville, Pa., in addition to Burton, Tex. About 300 campers will attend this year, according to the AAD, and 6,151 campers have attended from 1993 to 2022.

Amber Haygood.

The 1-week camp accepts youth with conditions ranging from eczema and psoriasis to vitiligo, alopecia, epidermolysis bullosa, and ichthyosis, according to the academy. A dermatologist first refers a child, downloading and completing the referral form and sending it to the academy.

The 1-week session, including travel, is free for the campers, thanks to donors. As a nonprofit and membership-based organization, the AAD does not release the detailed financial information about the operating budget for the camp. Dermatologists, nurses, and counselors volunteer their time.

In his presidential address at the AAD’s annual meeting in March, outgoing president Mark D. Kaufmann, MD, of the department of dermatology at the Icahn School of Medicine at Mount Sinai in New York, referred to camp volunteering as an antidote to professional burnout. Remembering why as a dermatologist one entered the profession can be one solution, he said, and described his own recent 3-day volunteer stint at the camp.

“Those 3 magical days, being with kids as they discovered they weren’t alone in the world, sharing their experiences and ideas, reminded me why I became a physician in the first place,” he told the audience of meeting attendees. He vowed to expand the program, with a goal of having every dermatology resident attend Camp Discovery.
 

Mental health effects of skin conditions

Much research has focused on the mental health fallout from living with chronic skin conditions, and even young children can be adversely affected. In one review of the literature, researchers concluded that pediatric skin disease, including acne, atopic dermatitis, and psoriasis, can affect quality of life, carry stigma, and lead to bullying and eventually even suicidal behavior. Another study, published earlier this year, found that atopic dermatitis affected children’s quality of life, impacting sleep and leading to feelings of being ashamed.

American Academy of Dermatology

“It’s not necessarily about what their skin condition is and more about the psychosocial impact,’’ said Samantha Hill, MD, a pediatric and general dermatologist in Lynchburg, Va., who is the medical director of Camp Discovery in Minnesota this year.

Camp activities, reactions

The overriding theme of camp is allowing all the youth to be “just one of the kids at camp,” Dr. Hill said in an interview. “They come to do all kinds of things they don’t do in normal life because people don’t give them the credit to [be able to] do it.”

American Academy of Dermatology

Every year, she said, “I tell my staff we are in the business of making things happen, so if there is a kid bandaged head to toe [because of a skin condition] and they want to go tubing and get in the lake, we figure out how to make it happen. We have done that multiple times.”

Newcomers are initially nervous, Dr. Hill acknowledged, but in time let their guard down. Returnees are a different story. “When kids who have been at camp before arrive, you can see them start breathing again, looking for their friends. You can see them relax right before your eyes.”

“The single most empowering thing is the realization you are not alone,” said Meena Julapalli, MD, a Houston dermatologist who is a medical team member and long-time volunteer at Camp Discovery. That, she said, and “You get to be a kid, and you don’t have to have people staring at you.”

Janica Boles

Dr. Julapalli remembers one of her patients with keratitis-ichthyosis-deafness (KID) syndrome. “She needed more than what I could offer,” she said. “She needed camp.” At camp, the organizers found a counselor who knew sign language to accompany her. At first, she was quiet and didn’t smile much. By the end of the week, as she was about to observe her birthday, things changed. After breakfast, she was led to the stage, where fellow campers began singing – and signing the song they had just learned.
 

Camp staff gets it

Allyson Garin, who was diagnosed with vitiligo at age 6 months, is a camp program director at Camp Discovery in Crosslake, Minn. She first went to camp in 1990 at age 11, returning until she “aged out” at 16, then worked as a counselor. She gets it when campers tell her they hear rude comments about their skin conditions.

Allyson Garin

“I remember being in swimming pools, in lines at fairgrounds or amusement parks,” she said in an interview, “and hearing people say, ‘Don’t touch her,’ ’’ fearing contagion, perhaps. “People would make jokes about cows, since they are spotted,” she said, or people would simply step back.

All those years ago, her mother found out about the camp and decided to figure out how to get her there. She got there, and she met a fellow camper with vitiligo, and they became pen pals. “We still talk,” she said.

Meeting someone with the same skin condition, she said, isn’t just about commiserating. “There is a lot of information sharing,” on topics such as best treatments, strategies, and other conversations.

Other lessons

While campers can feel comfortable around others who also have skin conditions, and understand, the lesson extends beyond that, Ms. Garin said. “It gave me a perspective,” she said of her camp experience. “I always felt, ‘Woe is me.’ ” But when she met others with, as she said, conditions “way worse than vitiligo, it really grounds you.”

Dr. Hill agreed. Campers get the benefit of others accepting and including them, but also practicing that same attitude toward fellow campers, she said. “It insures that we are providing this environment of inclusion, but that they are practicing it as well. They need to practice it like everyone else.”

Getting parents on board

The idea of camp, especially for those at the younger end of the 8- to 16-years age range accepted for Camp Discovery, can take some getting used to for some parents. Ms. Haygood, Emily’s mother, relates to that. Her daughter’s dermatologist at the time, who is now retired, had first suggested the camp. Her first reaction? “I am not sending my chronically ill child to camp with strangers.” She also acknowledged that she, like other parents of children with a chronic illness, can be a helicopter parent.

Amber Haygood

Then, she noticed that Emily seemed interested, so she got more information, finding out that it was staffed by doctors. It all sounded good, she said, and the social interaction, she knew, would be beneficial. “Then my husband was a no,” she said, concerned about their daughter being with strangers. “Eventually he came around,” Ms. Haygood said. All along, Emily said, “it seemed fun. I was probably trying to talk them into it.” She admits she was very nervous at first, but calmed down when she realized her own dermatologist was going to be there.

Vanessa Hadley of Spring, Tex., was on board the moment she heard about Camp Discovery. “I just thought it was amazing,” she said. Her daughter Isabelle, 13, has been to the camp. “She has alopecia areata and severe eczema,” Ms. Hadley said. Now, Isabelle is returning to camp and coaching her sister Penelope, 8, who has eczema and mild alopecia and is a first-timer this summer.

One tip the 8-year-old has learned so far: Turn to your counselor for support if you’re nervous. That worked, Isabelle said, the first year when she was wary of the zipline – then surprised herself and conquered it.

Dr. Hill and Dr. Julapalli have no disclosures.

The talent show, the grand finale of the 1-week camp, was nearly 7 years ago, but Emily Haygood of Houston, now 17 and about to start her senior year, remembers it in detail. She sang “Death of a Bachelor,” an R&B pop song and Billboard No. 1 hit at the time about a former bachelor who had happily married. These days, she said, if she watched the video of her 10-year-old singing self, “I would probably throw up.” But she still treasures the audience response, “having all those people I’d gotten close to cheer for me.”

Emily was at Camp Discovery in Burton, Tex., one of four camps sponsored by the American Academy of Dermatology for children and teens with chronic skin conditions. The diagnoses cover a range, but share one feature: they are the kind of dermatologic issues that can make doing everyday kid or teen activities like swimming difficult and can elicit mean comments from classmates and other would-be friends.

Amber Haygood

Emily was first diagnosed with atopic dermatitis at age 4, her mother, Amber Haygood, says. By age 9, it had become severe. Emily remembers being teased some in elementary school. “I did feel bad a lot of the time, when asked insensitive questions.” Her mother still bristles that adults often could be cruel, too.

But at Camp Discovery, those issues were nonexistent. “Camp was so cool,” Emily said. Besides the usual camp activities, it had things that “normal” camp didn’t, like other kids who didn’t stare at your skin condition or make fun of it.

30th anniversary season begins

This year is the 30th anniversary of Camp Discovery. Sessions began July 23 and continue through Aug. 18, with locations in Crosslake, Minn.; Hebron, Conn.; and Millville, Pa., in addition to Burton, Tex. About 300 campers will attend this year, according to the AAD, and 6,151 campers have attended from 1993 to 2022.

Amber Haygood.

The 1-week camp accepts youth with conditions ranging from eczema and psoriasis to vitiligo, alopecia, epidermolysis bullosa, and ichthyosis, according to the academy. A dermatologist first refers a child, downloading and completing the referral form and sending it to the academy.

The 1-week session, including travel, is free for the campers, thanks to donors. As a nonprofit and membership-based organization, the AAD does not release the detailed financial information about the operating budget for the camp. Dermatologists, nurses, and counselors volunteer their time.

In his presidential address at the AAD’s annual meeting in March, outgoing president Mark D. Kaufmann, MD, of the department of dermatology at the Icahn School of Medicine at Mount Sinai in New York, referred to camp volunteering as an antidote to professional burnout. Remembering why as a dermatologist one entered the profession can be one solution, he said, and described his own recent 3-day volunteer stint at the camp.

“Those 3 magical days, being with kids as they discovered they weren’t alone in the world, sharing their experiences and ideas, reminded me why I became a physician in the first place,” he told the audience of meeting attendees. He vowed to expand the program, with a goal of having every dermatology resident attend Camp Discovery.
 

Mental health effects of skin conditions

Much research has focused on the mental health fallout from living with chronic skin conditions, and even young children can be adversely affected. In one review of the literature, researchers concluded that pediatric skin disease, including acne, atopic dermatitis, and psoriasis, can affect quality of life, carry stigma, and lead to bullying and eventually even suicidal behavior. Another study, published earlier this year, found that atopic dermatitis affected children’s quality of life, impacting sleep and leading to feelings of being ashamed.

American Academy of Dermatology

“It’s not necessarily about what their skin condition is and more about the psychosocial impact,’’ said Samantha Hill, MD, a pediatric and general dermatologist in Lynchburg, Va., who is the medical director of Camp Discovery in Minnesota this year.

Camp activities, reactions

The overriding theme of camp is allowing all the youth to be “just one of the kids at camp,” Dr. Hill said in an interview. “They come to do all kinds of things they don’t do in normal life because people don’t give them the credit to [be able to] do it.”

American Academy of Dermatology

Every year, she said, “I tell my staff we are in the business of making things happen, so if there is a kid bandaged head to toe [because of a skin condition] and they want to go tubing and get in the lake, we figure out how to make it happen. We have done that multiple times.”

Newcomers are initially nervous, Dr. Hill acknowledged, but in time let their guard down. Returnees are a different story. “When kids who have been at camp before arrive, you can see them start breathing again, looking for their friends. You can see them relax right before your eyes.”

“The single most empowering thing is the realization you are not alone,” said Meena Julapalli, MD, a Houston dermatologist who is a medical team member and long-time volunteer at Camp Discovery. That, she said, and “You get to be a kid, and you don’t have to have people staring at you.”

Janica Boles

Dr. Julapalli remembers one of her patients with keratitis-ichthyosis-deafness (KID) syndrome. “She needed more than what I could offer,” she said. “She needed camp.” At camp, the organizers found a counselor who knew sign language to accompany her. At first, she was quiet and didn’t smile much. By the end of the week, as she was about to observe her birthday, things changed. After breakfast, she was led to the stage, where fellow campers began singing – and signing the song they had just learned.
 

Camp staff gets it

Allyson Garin, who was diagnosed with vitiligo at age 6 months, is a camp program director at Camp Discovery in Crosslake, Minn. She first went to camp in 1990 at age 11, returning until she “aged out” at 16, then worked as a counselor. She gets it when campers tell her they hear rude comments about their skin conditions.

Allyson Garin

“I remember being in swimming pools, in lines at fairgrounds or amusement parks,” she said in an interview, “and hearing people say, ‘Don’t touch her,’ ’’ fearing contagion, perhaps. “People would make jokes about cows, since they are spotted,” she said, or people would simply step back.

All those years ago, her mother found out about the camp and decided to figure out how to get her there. She got there, and she met a fellow camper with vitiligo, and they became pen pals. “We still talk,” she said.

Meeting someone with the same skin condition, she said, isn’t just about commiserating. “There is a lot of information sharing,” on topics such as best treatments, strategies, and other conversations.

Other lessons

While campers can feel comfortable around others who also have skin conditions, and understand, the lesson extends beyond that, Ms. Garin said. “It gave me a perspective,” she said of her camp experience. “I always felt, ‘Woe is me.’ ” But when she met others with, as she said, conditions “way worse than vitiligo, it really grounds you.”

Dr. Hill agreed. Campers get the benefit of others accepting and including them, but also practicing that same attitude toward fellow campers, she said. “It insures that we are providing this environment of inclusion, but that they are practicing it as well. They need to practice it like everyone else.”

Getting parents on board

The idea of camp, especially for those at the younger end of the 8- to 16-years age range accepted for Camp Discovery, can take some getting used to for some parents. Ms. Haygood, Emily’s mother, relates to that. Her daughter’s dermatologist at the time, who is now retired, had first suggested the camp. Her first reaction? “I am not sending my chronically ill child to camp with strangers.” She also acknowledged that she, like other parents of children with a chronic illness, can be a helicopter parent.

Amber Haygood

Then, she noticed that Emily seemed interested, so she got more information, finding out that it was staffed by doctors. It all sounded good, she said, and the social interaction, she knew, would be beneficial. “Then my husband was a no,” she said, concerned about their daughter being with strangers. “Eventually he came around,” Ms. Haygood said. All along, Emily said, “it seemed fun. I was probably trying to talk them into it.” She admits she was very nervous at first, but calmed down when she realized her own dermatologist was going to be there.

Vanessa Hadley of Spring, Tex., was on board the moment she heard about Camp Discovery. “I just thought it was amazing,” she said. Her daughter Isabelle, 13, has been to the camp. “She has alopecia areata and severe eczema,” Ms. Hadley said. Now, Isabelle is returning to camp and coaching her sister Penelope, 8, who has eczema and mild alopecia and is a first-timer this summer.

One tip the 8-year-old has learned so far: Turn to your counselor for support if you’re nervous. That worked, Isabelle said, the first year when she was wary of the zipline – then surprised herself and conquered it.

Dr. Hill and Dr. Julapalli have no disclosures.

The Diagnosis: Hypopigmented Mycosis Fungoides

Histopathology showed an atypical lymphoid infiltrate with expanded cytoplasm and hyperchromatic nuclei of irregular contours in the dermoepidermal junction (Figure 1). Immunohistochemical stains of atypical lymphocytes demonstrated the presence of CD3, CD8, and CD5, as well as the absence of CD7 and CD4 lymphocytes (Figure 2). The T-cell γ rearrangement showed polyclonal lymphocytes with 5% tumor cells. The histologic and clinical findings along with our patient’s medical history led to a diagnosis of stage IA (<10% body surface area involvement) hypopigmented mycosis fungoides (hMF).¹ Our patient was treated with triamcinolone cream 0.1%; she noted an improvement in her symptoms at 2-month follow-up.

Hypopigmented MF is an uncommon manifestation of MF with unknown prevalence and incidence rates. Mycosis fungoides is considered the most common subtype of cutaneous T-cell lymphoma that classically presents as a chronic, indolent, hypopigmented or depigmented macule or patch, commonly with scaling, in sunprotected areas such as the trunk and proximal arms and legs. It predominantly affects younger adults with darker skin tones and may be present in the pediatric population within the first decade of life.¹ Classically, MF affects White patients aged 55 to 60 years. Disease progression is slow, with an incidence rate of 10% of tumor or extracutaneous involvement in the early stages of disease. A lack of specificity on the clinical and histopathologic findings in the initial stage often contributes to the diagnostic delay of hMF. As seen in our patient, this disease can be misdiagnosed as tinea versicolor, postinflammatory hypopigmentation, vitiligo, pityriasis alba, subcutaneous lupus erythematosus, or Hansen disease due to prolonged hypopigmented lesions.² The clinical findings and histopathologic results including immunohistochemistry confirmed the diagnosis of hMF and ruled out pityriasis alba, postinflammatory hypopigmentation, subcutaneous lupus erythematosus, and vitiligo.

The etiology and pathophysiology of hMF are not fully understood; however, it is hypothesized that melanocyte degeneration, abnormal melanogenesis, and disturbance of melanosome transfer result from the clonal expansion of T helper memory cells. T-cell dyscrasia has been reported to evolve into hMF during etanercept therapy.³ Clinically, hMF presents as hypopigmented papulosquamous, eczematous, or erythrodermic patches, plaques, and tumors with poorly defined atrophied borders. Multiple biopsies of steroid-naive lesions are needed for the diagnosis, as the initial hMF histologic finding cannot be specific for diagnostic confirmation. Common histopathologic findings include a bandlike lymphocytic infiltrate with epidermotropism, intraepidermal nests of atypical cells, or cerebriform nuclei lymphocytes on hematoxylin and eosin staining. In comparison to classical MF epidermotropism, CD4− and CD8+ atypical cells aid in the diagnosis of hMF. Although hMF carries a good prognosis and a benign clinical course,⁴ full-body computed tomography or positron emission tomography/computed tomography as well as laboratory analysis for lactate dehydrogenase should be pursued if lymphadenopathy, systemic symptoms, or advancedstage hMF are present.

Treatment of hMF depends on the disease stage. Psoralen plus UVA and narrowband UVB can be utilized for the initial stages with a relatively fast response and remission of lesions as early as the first 2 months of treatment. In addition to phototherapy, stage IA to IIA mycosis fungoides with localized skin lesions can benefit from topical steroids, topical retinoids, imiquimod, nitrogen mustard, and carmustine. For advanced stages of mycosis fungoides, combination therapy consisting of psoralen plus UVA with an oral retinoid, interferon alfa, and systemic chemotherapy commonly are prescribed. Maintenance therapy is used for prolonging remission; however, long-term phototherapy is not recommended due to the risk for skin cancer. Unfortunately, hMF requires long-term treatment due to its waxing and waning course, and recurrence may occur after complete resolution.⁵

The Diagnosis: Hypopigmented Mycosis Fungoides

Histopathology showed an atypical lymphoid infiltrate with expanded cytoplasm and hyperchromatic nuclei of irregular contours in the dermoepidermal junction (Figure 1). Immunohistochemical stains of atypical lymphocytes demonstrated the presence of CD3, CD8, and CD5, as well as the absence of CD7 and CD4 lymphocytes (Figure 2). The T-cell γ rearrangement showed polyclonal lymphocytes with 5% tumor cells. The histologic and clinical findings along with our patient’s medical history led to a diagnosis of stage IA (<10% body surface area involvement) hypopigmented mycosis fungoides (hMF).¹ Our patient was treated with triamcinolone cream 0.1%; she noted an improvement in her symptoms at 2-month follow-up.

Hypopigmented MF is an uncommon manifestation of MF with unknown prevalence and incidence rates. Mycosis fungoides is considered the most common subtype of cutaneous T-cell lymphoma that classically presents as a chronic, indolent, hypopigmented or depigmented macule or patch, commonly with scaling, in sunprotected areas such as the trunk and proximal arms and legs. It predominantly affects younger adults with darker skin tones and may be present in the pediatric population within the first decade of life.¹ Classically, MF affects White patients aged 55 to 60 years. Disease progression is slow, with an incidence rate of 10% of tumor or extracutaneous involvement in the early stages of disease. A lack of specificity on the clinical and histopathologic findings in the initial stage often contributes to the diagnostic delay of hMF. As seen in our patient, this disease can be misdiagnosed as tinea versicolor, postinflammatory hypopigmentation, vitiligo, pityriasis alba, subcutaneous lupus erythematosus, or Hansen disease due to prolonged hypopigmented lesions.² The clinical findings and histopathologic results including immunohistochemistry confirmed the diagnosis of hMF and ruled out pityriasis alba, postinflammatory hypopigmentation, subcutaneous lupus erythematosus, and vitiligo.

The etiology and pathophysiology of hMF are not fully understood; however, it is hypothesized that melanocyte degeneration, abnormal melanogenesis, and disturbance of melanosome transfer result from the clonal expansion of T helper memory cells. T-cell dyscrasia has been reported to evolve into hMF during etanercept therapy.³ Clinically, hMF presents as hypopigmented papulosquamous, eczematous, or erythrodermic patches, plaques, and tumors with poorly defined atrophied borders. Multiple biopsies of steroid-naive lesions are needed for the diagnosis, as the initial hMF histologic finding cannot be specific for diagnostic confirmation. Common histopathologic findings include a bandlike lymphocytic infiltrate with epidermotropism, intraepidermal nests of atypical cells, or cerebriform nuclei lymphocytes on hematoxylin and eosin staining. In comparison to classical MF epidermotropism, CD4− and CD8+ atypical cells aid in the diagnosis of hMF. Although hMF carries a good prognosis and a benign clinical course,⁴ full-body computed tomography or positron emission tomography/computed tomography as well as laboratory analysis for lactate dehydrogenase should be pursued if lymphadenopathy, systemic symptoms, or advancedstage hMF are present.

Treatment of hMF depends on the disease stage. Psoralen plus UVA and narrowband UVB can be utilized for the initial stages with a relatively fast response and remission of lesions as early as the first 2 months of treatment. In addition to phototherapy, stage IA to IIA mycosis fungoides with localized skin lesions can benefit from topical steroids, topical retinoids, imiquimod, nitrogen mustard, and carmustine. For advanced stages of mycosis fungoides, combination therapy consisting of psoralen plus UVA with an oral retinoid, interferon alfa, and systemic chemotherapy commonly are prescribed. Maintenance therapy is used for prolonging remission; however, long-term phototherapy is not recommended due to the risk for skin cancer. Unfortunately, hMF requires long-term treatment due to its waxing and waning course, and recurrence may occur after complete resolution.⁵

The Diagnosis: Hypopigmented Mycosis Fungoides

Histopathology showed an atypical lymphoid infiltrate with expanded cytoplasm and hyperchromatic nuclei of irregular contours in the dermoepidermal junction (Figure 1). Immunohistochemical stains of atypical lymphocytes demonstrated the presence of CD3, CD8, and CD5, as well as the absence of CD7 and CD4 lymphocytes (Figure 2). The T-cell γ rearrangement showed polyclonal lymphocytes with 5% tumor cells. The histologic and clinical findings along with our patient’s medical history led to a diagnosis of stage IA (<10% body surface area involvement) hypopigmented mycosis fungoides (hMF).¹ Our patient was treated with triamcinolone cream 0.1%; she noted an improvement in her symptoms at 2-month follow-up.

Hypopigmented MF is an uncommon manifestation of MF with unknown prevalence and incidence rates. Mycosis fungoides is considered the most common subtype of cutaneous T-cell lymphoma that classically presents as a chronic, indolent, hypopigmented or depigmented macule or patch, commonly with scaling, in sunprotected areas such as the trunk and proximal arms and legs. It predominantly affects younger adults with darker skin tones and may be present in the pediatric population within the first decade of life.¹ Classically, MF affects White patients aged 55 to 60 years. Disease progression is slow, with an incidence rate of 10% of tumor or extracutaneous involvement in the early stages of disease. A lack of specificity on the clinical and histopathologic findings in the initial stage often contributes to the diagnostic delay of hMF. As seen in our patient, this disease can be misdiagnosed as tinea versicolor, postinflammatory hypopigmentation, vitiligo, pityriasis alba, subcutaneous lupus erythematosus, or Hansen disease due to prolonged hypopigmented lesions.² The clinical findings and histopathologic results including immunohistochemistry confirmed the diagnosis of hMF and ruled out pityriasis alba, postinflammatory hypopigmentation, subcutaneous lupus erythematosus, and vitiligo.

The etiology and pathophysiology of hMF are not fully understood; however, it is hypothesized that melanocyte degeneration, abnormal melanogenesis, and disturbance of melanosome transfer result from the clonal expansion of T helper memory cells. T-cell dyscrasia has been reported to evolve into hMF during etanercept therapy.³ Clinically, hMF presents as hypopigmented papulosquamous, eczematous, or erythrodermic patches, plaques, and tumors with poorly defined atrophied borders. Multiple biopsies of steroid-naive lesions are needed for the diagnosis, as the initial hMF histologic finding cannot be specific for diagnostic confirmation. Common histopathologic findings include a bandlike lymphocytic infiltrate with epidermotropism, intraepidermal nests of atypical cells, or cerebriform nuclei lymphocytes on hematoxylin and eosin staining. In comparison to classical MF epidermotropism, CD4− and CD8+ atypical cells aid in the diagnosis of hMF. Although hMF carries a good prognosis and a benign clinical course,⁴ full-body computed tomography or positron emission tomography/computed tomography as well as laboratory analysis for lactate dehydrogenase should be pursued if lymphadenopathy, systemic symptoms, or advancedstage hMF are present.

Treatment of hMF depends on the disease stage. Psoralen plus UVA and narrowband UVB can be utilized for the initial stages with a relatively fast response and remission of lesions as early as the first 2 months of treatment. In addition to phototherapy, stage IA to IIA mycosis fungoides with localized skin lesions can benefit from topical steroids, topical retinoids, imiquimod, nitrogen mustard, and carmustine. For advanced stages of mycosis fungoides, combination therapy consisting of psoralen plus UVA with an oral retinoid, interferon alfa, and systemic chemotherapy commonly are prescribed. Maintenance therapy is used for prolonging remission; however, long-term phototherapy is not recommended due to the risk for skin cancer. Unfortunately, hMF requires long-term treatment due to its waxing and waning course, and recurrence may occur after complete resolution.⁵