Dermatology

This patient had a posttraumatic tache noir (also known as talon noir on the volar aspect of the feet); it is a subcorneal hematoma. The diagnosis is made clinically. Dermoscopic evaluation of tache/talon noir will reveal “pebbles on a ridge” or “satellite globules.” Confirmation of tache/talon noir can be made by paring the corneum with a #15 blade, which will reveal blood in the shavings and punctate lesions.¹

This patient noted that the knob of his baseball bat rubbed the hypothenar eminence of his nondominant hand when he took a swing. The sheer force of the knob led to the subcorneal hematoma. Tache noir was high on the differential due to his physician’s clinical experience with similar cases. Tache noir occurs predominantly in people ages 12 to 24 years, without regard to gender.² The condition is commonly found in athletes who participate in baseball, cricket, racquet sports, weightlifting, and rock climbing.^2-4

Talon noir occurs most commonly in athletes who are frequently jumping, turning, and pivoting, as in football, basketball, tennis, and lacrosse.

Tache noir can be differentiated from other conditions by the presence of preserved architecture of the skin surface and punctate capillaries beneath the stratum corneum. The differential diagnosis includes verruca vulgaris, acral melanoma, and a traumatic tattoo.

Talon/tache noir are benign conditions that do not require treatment and do not affect sports performance. The lesion will usually self-resolve within a matter of weeks from onset or can even be gently scraped with a sterile needle or blade.

This patient was advised that the lesion would resolve on its own. His knee pain was determined to be a simple case of patellofemoral syndrome or “runner’s knee” and he opted to complete a home exercise program to obtain relief.

‌

This case was adapted from: Warden D. Hyperpigmented lesion on left palm. J Fam Pract. 2021;70:459-460. Photos courtesy of Daniel Warden, MD

This patient had a posttraumatic tache noir (also known as talon noir on the volar aspect of the feet); it is a subcorneal hematoma. The diagnosis is made clinically. Dermoscopic evaluation of tache/talon noir will reveal “pebbles on a ridge” or “satellite globules.” Confirmation of tache/talon noir can be made by paring the corneum with a #15 blade, which will reveal blood in the shavings and punctate lesions.¹

This patient noted that the knob of his baseball bat rubbed the hypothenar eminence of his nondominant hand when he took a swing. The sheer force of the knob led to the subcorneal hematoma. Tache noir was high on the differential due to his physician’s clinical experience with similar cases. Tache noir occurs predominantly in people ages 12 to 24 years, without regard to gender.² The condition is commonly found in athletes who participate in baseball, cricket, racquet sports, weightlifting, and rock climbing.^2-4

Talon noir occurs most commonly in athletes who are frequently jumping, turning, and pivoting, as in football, basketball, tennis, and lacrosse.

Tache noir can be differentiated from other conditions by the presence of preserved architecture of the skin surface and punctate capillaries beneath the stratum corneum. The differential diagnosis includes verruca vulgaris, acral melanoma, and a traumatic tattoo.

Talon/tache noir are benign conditions that do not require treatment and do not affect sports performance. The lesion will usually self-resolve within a matter of weeks from onset or can even be gently scraped with a sterile needle or blade.

This patient was advised that the lesion would resolve on its own. His knee pain was determined to be a simple case of patellofemoral syndrome or “runner’s knee” and he opted to complete a home exercise program to obtain relief.

‌

This case was adapted from: Warden D. Hyperpigmented lesion on left palm. J Fam Pract. 2021;70:459-460. Photos courtesy of Daniel Warden, MD

This patient had a posttraumatic tache noir (also known as talon noir on the volar aspect of the feet); it is a subcorneal hematoma. The diagnosis is made clinically. Dermoscopic evaluation of tache/talon noir will reveal “pebbles on a ridge” or “satellite globules.” Confirmation of tache/talon noir can be made by paring the corneum with a #15 blade, which will reveal blood in the shavings and punctate lesions.¹

This patient noted that the knob of his baseball bat rubbed the hypothenar eminence of his nondominant hand when he took a swing. The sheer force of the knob led to the subcorneal hematoma. Tache noir was high on the differential due to his physician’s clinical experience with similar cases. Tache noir occurs predominantly in people ages 12 to 24 years, without regard to gender.² The condition is commonly found in athletes who participate in baseball, cricket, racquet sports, weightlifting, and rock climbing.^2-4

Talon noir occurs most commonly in athletes who are frequently jumping, turning, and pivoting, as in football, basketball, tennis, and lacrosse.

Tache noir can be differentiated from other conditions by the presence of preserved architecture of the skin surface and punctate capillaries beneath the stratum corneum. The differential diagnosis includes verruca vulgaris, acral melanoma, and a traumatic tattoo.

Talon/tache noir are benign conditions that do not require treatment and do not affect sports performance. The lesion will usually self-resolve within a matter of weeks from onset or can even be gently scraped with a sterile needle or blade.

This patient was advised that the lesion would resolve on its own. His knee pain was determined to be a simple case of patellofemoral syndrome or “runner’s knee” and he opted to complete a home exercise program to obtain relief.

‌

This case was adapted from: Warden D. Hyperpigmented lesion on left palm. J Fam Pract. 2021;70:459-460. Photos courtesy of Daniel Warden, MD

The European Commission has authorized the marketing of ritlecitinib to treat adults and adolescents 12 years of age and older with severe alopecia areata. This makes ritlecitinib the first medicine authorized by the EC to treat individuals with severe alopecia areata as young as 12 years of age.

Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3. In June of 2023, the drug received FDA approval for the treatment of severe alopecia areata in people ages 12 and older in the United States.

According to a press release from Pfizer, which developed the drug, EC approval was based on the pivotal ALLEGRO clinical trial program, which included the ALLEGRO phase 2b/3 study that evaluated ritlecitinib in patients aged 12 years and older with alopecia areata with 50% or more scalp hair loss, including patients with alopecia totalis (total scalp hair loss) and alopecia universalis (total body hair loss). Results from this study showed that 13.4% of adults and adolescents achieved 90% or more scalp hair coverage (Severity of Alopecia Tool score of 10 or less) after 24 weeks of treatment with ritlecitinib 50 mg, compared with 1.5% of those on placebo.

The study also measured Patient Global Impression of Change (PGI-C). At week 24, 49.2% of participants treated with ritlecitinib reported a PGI-C response of “moderate” to “great” improvement in their alopecia areata, compared with 9.2% with placebo.

According to results from an ongoing, long-term phase 3 study of ritlecitinib known as ALLEGRO-LT, the most common adverse reactions reported from use of the drug included diarrhea (9.2%), acne (6.2%), upper respiratory tract infections (6.2%), urticaria (4.6%), rash (3.8%), folliculitis (3.1%), and dizziness (2.3%), the company press release said.





 

The European Commission has authorized the marketing of ritlecitinib to treat adults and adolescents 12 years of age and older with severe alopecia areata. This makes ritlecitinib the first medicine authorized by the EC to treat individuals with severe alopecia areata as young as 12 years of age.

Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3. In June of 2023, the drug received FDA approval for the treatment of severe alopecia areata in people ages 12 and older in the United States.

According to a press release from Pfizer, which developed the drug, EC approval was based on the pivotal ALLEGRO clinical trial program, which included the ALLEGRO phase 2b/3 study that evaluated ritlecitinib in patients aged 12 years and older with alopecia areata with 50% or more scalp hair loss, including patients with alopecia totalis (total scalp hair loss) and alopecia universalis (total body hair loss). Results from this study showed that 13.4% of adults and adolescents achieved 90% or more scalp hair coverage (Severity of Alopecia Tool score of 10 or less) after 24 weeks of treatment with ritlecitinib 50 mg, compared with 1.5% of those on placebo.

The study also measured Patient Global Impression of Change (PGI-C). At week 24, 49.2% of participants treated with ritlecitinib reported a PGI-C response of “moderate” to “great” improvement in their alopecia areata, compared with 9.2% with placebo.

According to results from an ongoing, long-term phase 3 study of ritlecitinib known as ALLEGRO-LT, the most common adverse reactions reported from use of the drug included diarrhea (9.2%), acne (6.2%), upper respiratory tract infections (6.2%), urticaria (4.6%), rash (3.8%), folliculitis (3.1%), and dizziness (2.3%), the company press release said.





 

The European Commission has authorized the marketing of ritlecitinib to treat adults and adolescents 12 years of age and older with severe alopecia areata. This makes ritlecitinib the first medicine authorized by the EC to treat individuals with severe alopecia areata as young as 12 years of age.

Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3. In June of 2023, the drug received FDA approval for the treatment of severe alopecia areata in people ages 12 and older in the United States.

According to a press release from Pfizer, which developed the drug, EC approval was based on the pivotal ALLEGRO clinical trial program, which included the ALLEGRO phase 2b/3 study that evaluated ritlecitinib in patients aged 12 years and older with alopecia areata with 50% or more scalp hair loss, including patients with alopecia totalis (total scalp hair loss) and alopecia universalis (total body hair loss). Results from this study showed that 13.4% of adults and adolescents achieved 90% or more scalp hair coverage (Severity of Alopecia Tool score of 10 or less) after 24 weeks of treatment with ritlecitinib 50 mg, compared with 1.5% of those on placebo.

The study also measured Patient Global Impression of Change (PGI-C). At week 24, 49.2% of participants treated with ritlecitinib reported a PGI-C response of “moderate” to “great” improvement in their alopecia areata, compared with 9.2% with placebo.

According to results from an ongoing, long-term phase 3 study of ritlecitinib known as ALLEGRO-LT, the most common adverse reactions reported from use of the drug included diarrhea (9.2%), acne (6.2%), upper respiratory tract infections (6.2%), urticaria (4.6%), rash (3.8%), folliculitis (3.1%), and dizziness (2.3%), the company press release said.





 

SAN DIEGO – Injecting a scar with intralesional steroids is a popular way to reduce its size and soften the surrounding tissue, but proper technique matters, according to Victor Ross, MD.

“A lot of lip service is paid to how to inject the steroid,” Dr. Ross, director of laser and cosmetic dermatology at the Scripps Clinic in San Diego, said at the annual Masters of Aesthetics Symposium. “The most important part is the amount and the fastidiousness that you have injecting. You should see the tip of the needle and be very slow. Use a 1 cc syringe.” He used to inject scars with triamcinolone acetate 40 mg/mL, but now he almost always injects 10-20 mg/mL to avoid inducing white streak-like atrophy or hypopigmentation around the treated area.

“When you treat a scar, you treat the features of the scar that make it stand out,” Dr. Ross continued. “If it’s red, you address the hyperemia. If it’s brown, you address the pigment. You want to have a reasonable pathophysiological basis for what you’re doing. Understand how the scar got there and have a reasonable algorithm.” When he counsels patients about clinical outcomes to expect, he emphasizes rehabilitation instead of blemish-free perfection. “It’s not making the scar go away,” he said. “It’s not restoring completely normal skin form and function; it’s a restorative effort to get toward normality. That’s what it’s all about.”

Besides injecting scars with triamcinolone acetate, other scar treatment options include intralesional 5-fluorouracil, oral antihistamines, COX-2 inhibitors, hydrogel sheeting, compression, acoustic wave therapy, photodynamic therapy, radiofrequency, and lasers. “I’m not a big fan of low-level light; it probably does something [to scars], but I’m skeptical,” Dr. Ross said.

In his clinical opinion, most scars respond best to treatments with ablative and nonablative fractional lasers tuned to gentle settings such as an energy level of 20 millijoules at a density of 5%-10%. “Every scar deserves a chance for laser remediation and rehabilitation,” he said. “With radiation scars you want to be particularly gentle. If you have a Mohs scar that has been subsequently treated with radiation, I would lower my settings by half, because I’ve had some scars worsen with settings for red scars after radiation therapy.”

He often uses fractional lasers for stubborn acne scarring. “The hyperemic component you can treat with a vascular laser, then come back [and treat the scarring] with a nonablative fractional laser, or you could use radiofrequency microneedling as well,” Dr. Ross said.

New or innovative scar treatments coming down the pike, he said, include the following: mitomycin C (applied topically, he said that this has worked well for postoperative keloids), tamoxifen, oral methotrexate, imiquimod (which has mixed results to date), platelet-rich plasma, and retinoids.

Dr. Ross disclosed having research and financial ties to numerous pharmaceutical and device companies.

SAN DIEGO – Injecting a scar with intralesional steroids is a popular way to reduce its size and soften the surrounding tissue, but proper technique matters, according to Victor Ross, MD.

“A lot of lip service is paid to how to inject the steroid,” Dr. Ross, director of laser and cosmetic dermatology at the Scripps Clinic in San Diego, said at the annual Masters of Aesthetics Symposium. “The most important part is the amount and the fastidiousness that you have injecting. You should see the tip of the needle and be very slow. Use a 1 cc syringe.” He used to inject scars with triamcinolone acetate 40 mg/mL, but now he almost always injects 10-20 mg/mL to avoid inducing white streak-like atrophy or hypopigmentation around the treated area.

“When you treat a scar, you treat the features of the scar that make it stand out,” Dr. Ross continued. “If it’s red, you address the hyperemia. If it’s brown, you address the pigment. You want to have a reasonable pathophysiological basis for what you’re doing. Understand how the scar got there and have a reasonable algorithm.” When he counsels patients about clinical outcomes to expect, he emphasizes rehabilitation instead of blemish-free perfection. “It’s not making the scar go away,” he said. “It’s not restoring completely normal skin form and function; it’s a restorative effort to get toward normality. That’s what it’s all about.”

Besides injecting scars with triamcinolone acetate, other scar treatment options include intralesional 5-fluorouracil, oral antihistamines, COX-2 inhibitors, hydrogel sheeting, compression, acoustic wave therapy, photodynamic therapy, radiofrequency, and lasers. “I’m not a big fan of low-level light; it probably does something [to scars], but I’m skeptical,” Dr. Ross said.

In his clinical opinion, most scars respond best to treatments with ablative and nonablative fractional lasers tuned to gentle settings such as an energy level of 20 millijoules at a density of 5%-10%. “Every scar deserves a chance for laser remediation and rehabilitation,” he said. “With radiation scars you want to be particularly gentle. If you have a Mohs scar that has been subsequently treated with radiation, I would lower my settings by half, because I’ve had some scars worsen with settings for red scars after radiation therapy.”

He often uses fractional lasers for stubborn acne scarring. “The hyperemic component you can treat with a vascular laser, then come back [and treat the scarring] with a nonablative fractional laser, or you could use radiofrequency microneedling as well,” Dr. Ross said.

New or innovative scar treatments coming down the pike, he said, include the following: mitomycin C (applied topically, he said that this has worked well for postoperative keloids), tamoxifen, oral methotrexate, imiquimod (which has mixed results to date), platelet-rich plasma, and retinoids.

Dr. Ross disclosed having research and financial ties to numerous pharmaceutical and device companies.

SAN DIEGO – Injecting a scar with intralesional steroids is a popular way to reduce its size and soften the surrounding tissue, but proper technique matters, according to Victor Ross, MD.

“A lot of lip service is paid to how to inject the steroid,” Dr. Ross, director of laser and cosmetic dermatology at the Scripps Clinic in San Diego, said at the annual Masters of Aesthetics Symposium. “The most important part is the amount and the fastidiousness that you have injecting. You should see the tip of the needle and be very slow. Use a 1 cc syringe.” He used to inject scars with triamcinolone acetate 40 mg/mL, but now he almost always injects 10-20 mg/mL to avoid inducing white streak-like atrophy or hypopigmentation around the treated area.

“When you treat a scar, you treat the features of the scar that make it stand out,” Dr. Ross continued. “If it’s red, you address the hyperemia. If it’s brown, you address the pigment. You want to have a reasonable pathophysiological basis for what you’re doing. Understand how the scar got there and have a reasonable algorithm.” When he counsels patients about clinical outcomes to expect, he emphasizes rehabilitation instead of blemish-free perfection. “It’s not making the scar go away,” he said. “It’s not restoring completely normal skin form and function; it’s a restorative effort to get toward normality. That’s what it’s all about.”

Besides injecting scars with triamcinolone acetate, other scar treatment options include intralesional 5-fluorouracil, oral antihistamines, COX-2 inhibitors, hydrogel sheeting, compression, acoustic wave therapy, photodynamic therapy, radiofrequency, and lasers. “I’m not a big fan of low-level light; it probably does something [to scars], but I’m skeptical,” Dr. Ross said.

In his clinical opinion, most scars respond best to treatments with ablative and nonablative fractional lasers tuned to gentle settings such as an energy level of 20 millijoules at a density of 5%-10%. “Every scar deserves a chance for laser remediation and rehabilitation,” he said. “With radiation scars you want to be particularly gentle. If you have a Mohs scar that has been subsequently treated with radiation, I would lower my settings by half, because I’ve had some scars worsen with settings for red scars after radiation therapy.”

He often uses fractional lasers for stubborn acne scarring. “The hyperemic component you can treat with a vascular laser, then come back [and treat the scarring] with a nonablative fractional laser, or you could use radiofrequency microneedling as well,” Dr. Ross said.

New or innovative scar treatments coming down the pike, he said, include the following: mitomycin C (applied topically, he said that this has worked well for postoperative keloids), tamoxifen, oral methotrexate, imiquimod (which has mixed results to date), platelet-rich plasma, and retinoids.

Dr. Ross disclosed having research and financial ties to numerous pharmaceutical and device companies.

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended marketing authorization of lebrikizumab for the treatment of adult and adolescent patients with moderate to severe atopic dermatitis (AD) who are candidates for systemic therapy.

Lebrikizumab is an investigational, monoclonal antibody that binds to cytokine interleukin (IL)-13, which has been implicated in driving the type-2 inflammatory loop in the skin, leading to skin barrier dysfunction, itch, skin thickening, and infection. The biologic is being developed by Almirall and is designed to be administered once per month. Lebrikizumab is not yet available in the United States.

According to a press release from Almirall, the CHMP opinion was based on three pivotal phase 3 studies that showed long-term response in skin clearance and itch control. ADvocate 1 and ADvocate 2 evaluated lebrikizumab as monotherapy, while ADhere assessed lebrikizumab in combination with topical corticosteroids (TCS) in adult and adolescent patients with moderate to severe AD. At week 16, more than 50% of patients with moderate to severe AD experienced at least a 75% reduction in disease severity (EASI-75) when receiving lebrikizumab monotherapy in the ADvocate studies and nearly 70% of patients receiving lebrikizumab combined with standard-of-care TCS achieved EASI-75 in the ADhere trial.

Most adverse events across the studies were mild or moderate. The most common reactions were conjunctivitis, injection site reactions, allergic conjunctivitis, and dry eye.

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended marketing authorization of lebrikizumab for the treatment of adult and adolescent patients with moderate to severe atopic dermatitis (AD) who are candidates for systemic therapy.

Lebrikizumab is an investigational, monoclonal antibody that binds to cytokine interleukin (IL)-13, which has been implicated in driving the type-2 inflammatory loop in the skin, leading to skin barrier dysfunction, itch, skin thickening, and infection. The biologic is being developed by Almirall and is designed to be administered once per month. Lebrikizumab is not yet available in the United States.

According to a press release from Almirall, the CHMP opinion was based on three pivotal phase 3 studies that showed long-term response in skin clearance and itch control. ADvocate 1 and ADvocate 2 evaluated lebrikizumab as monotherapy, while ADhere assessed lebrikizumab in combination with topical corticosteroids (TCS) in adult and adolescent patients with moderate to severe AD. At week 16, more than 50% of patients with moderate to severe AD experienced at least a 75% reduction in disease severity (EASI-75) when receiving lebrikizumab monotherapy in the ADvocate studies and nearly 70% of patients receiving lebrikizumab combined with standard-of-care TCS achieved EASI-75 in the ADhere trial.

Most adverse events across the studies were mild or moderate. The most common reactions were conjunctivitis, injection site reactions, allergic conjunctivitis, and dry eye.

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended marketing authorization of lebrikizumab for the treatment of adult and adolescent patients with moderate to severe atopic dermatitis (AD) who are candidates for systemic therapy.

Lebrikizumab is an investigational, monoclonal antibody that binds to cytokine interleukin (IL)-13, which has been implicated in driving the type-2 inflammatory loop in the skin, leading to skin barrier dysfunction, itch, skin thickening, and infection. The biologic is being developed by Almirall and is designed to be administered once per month. Lebrikizumab is not yet available in the United States.

According to a press release from Almirall, the CHMP opinion was based on three pivotal phase 3 studies that showed long-term response in skin clearance and itch control. ADvocate 1 and ADvocate 2 evaluated lebrikizumab as monotherapy, while ADhere assessed lebrikizumab in combination with topical corticosteroids (TCS) in adult and adolescent patients with moderate to severe AD. At week 16, more than 50% of patients with moderate to severe AD experienced at least a 75% reduction in disease severity (EASI-75) when receiving lebrikizumab monotherapy in the ADvocate studies and nearly 70% of patients receiving lebrikizumab combined with standard-of-care TCS achieved EASI-75 in the ADhere trial.

Most adverse events across the studies were mild or moderate. The most common reactions were conjunctivitis, injection site reactions, allergic conjunctivitis, and dry eye.

Hyperbaric oxygen therapy (HBOT) may have a role in treating calciphylaxis, with benefits in both mortality and wound healing, report Daniela Kroshinsky, MD, MPH, of the department of dermatology at Massachusetts General Hospital, Boston, and colleagues.

Although intravenous sodium thiosulfate (IV STS) is considered standard care in the treatment of calciphylaxis, HBOT has been reported to have beneficial effects, they noted.

In their study, the researchers retrospectively reviewed records of 93 patients newly diagnosed with calciphylaxis, seen at Massachusetts General Hospital, between January 2006 and December 2021. They compared mortality and wound healing outcomes for 57 patients treated with IV STS only (control group) with those of 36 patients treated with HBOT plus IV STS (treatment group). Traditional survival analyses and Cox proportional hazard modeling were used to examine mortality data, and mixed effects modeling was used to analyze longitudinal wound outcomes. The study was published in the Journal of the American Academy of Dermatology.

Univariate survival analyses showed that HBOT plus IV STS was associated with significantly longer survival time than IV STS alone (P = .016), particularly for those with nonnephrogenic calciphylaxis (P < .0001), they report. An increased number of HBOT sessions conferred improved mortality outcomes, with 1, 5, 10, and 20 sessions yielding decreasing hazard ratios.

There was also a significant positive association between an increasing number of HBOT sessions and increased wound score (P = .042). Increases were seen with each session.

Anxiety/claustrophobia was the most common side effect reported among those in the HBOT group (22%).

“Given the proposed benefits and seemingly low side effect profile, it is the authors’ recommendation that HBOT be offered as an additional intervention to patients with calciphylaxis, especially if they have open wounds, to improve outcomes and expedite wound healing,” the researchers concluded.

Limitations, they noted, included the small sample size, retrospective design, and the potential for not adequately capturing patients who received external care. They were also unable to match patients by disease or wound severity. Large prospective trials would help clarify the role of HBOT for calciphylaxis, they added.

The researchers reported no relevant disclosures.

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

Hyperbaric oxygen therapy (HBOT) may have a role in treating calciphylaxis, with benefits in both mortality and wound healing, report Daniela Kroshinsky, MD, MPH, of the department of dermatology at Massachusetts General Hospital, Boston, and colleagues.

Although intravenous sodium thiosulfate (IV STS) is considered standard care in the treatment of calciphylaxis, HBOT has been reported to have beneficial effects, they noted.

In their study, the researchers retrospectively reviewed records of 93 patients newly diagnosed with calciphylaxis, seen at Massachusetts General Hospital, between January 2006 and December 2021. They compared mortality and wound healing outcomes for 57 patients treated with IV STS only (control group) with those of 36 patients treated with HBOT plus IV STS (treatment group). Traditional survival analyses and Cox proportional hazard modeling were used to examine mortality data, and mixed effects modeling was used to analyze longitudinal wound outcomes. The study was published in the Journal of the American Academy of Dermatology.

Univariate survival analyses showed that HBOT plus IV STS was associated with significantly longer survival time than IV STS alone (P = .016), particularly for those with nonnephrogenic calciphylaxis (P < .0001), they report. An increased number of HBOT sessions conferred improved mortality outcomes, with 1, 5, 10, and 20 sessions yielding decreasing hazard ratios.

There was also a significant positive association between an increasing number of HBOT sessions and increased wound score (P = .042). Increases were seen with each session.

Anxiety/claustrophobia was the most common side effect reported among those in the HBOT group (22%).

“Given the proposed benefits and seemingly low side effect profile, it is the authors’ recommendation that HBOT be offered as an additional intervention to patients with calciphylaxis, especially if they have open wounds, to improve outcomes and expedite wound healing,” the researchers concluded.

Limitations, they noted, included the small sample size, retrospective design, and the potential for not adequately capturing patients who received external care. They were also unable to match patients by disease or wound severity. Large prospective trials would help clarify the role of HBOT for calciphylaxis, they added.

The researchers reported no relevant disclosures.

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

Hyperbaric oxygen therapy (HBOT) may have a role in treating calciphylaxis, with benefits in both mortality and wound healing, report Daniela Kroshinsky, MD, MPH, of the department of dermatology at Massachusetts General Hospital, Boston, and colleagues.

Although intravenous sodium thiosulfate (IV STS) is considered standard care in the treatment of calciphylaxis, HBOT has been reported to have beneficial effects, they noted.

In their study, the researchers retrospectively reviewed records of 93 patients newly diagnosed with calciphylaxis, seen at Massachusetts General Hospital, between January 2006 and December 2021. They compared mortality and wound healing outcomes for 57 patients treated with IV STS only (control group) with those of 36 patients treated with HBOT plus IV STS (treatment group). Traditional survival analyses and Cox proportional hazard modeling were used to examine mortality data, and mixed effects modeling was used to analyze longitudinal wound outcomes. The study was published in the Journal of the American Academy of Dermatology.

Univariate survival analyses showed that HBOT plus IV STS was associated with significantly longer survival time than IV STS alone (P = .016), particularly for those with nonnephrogenic calciphylaxis (P < .0001), they report. An increased number of HBOT sessions conferred improved mortality outcomes, with 1, 5, 10, and 20 sessions yielding decreasing hazard ratios.

There was also a significant positive association between an increasing number of HBOT sessions and increased wound score (P = .042). Increases were seen with each session.

Anxiety/claustrophobia was the most common side effect reported among those in the HBOT group (22%).

“Given the proposed benefits and seemingly low side effect profile, it is the authors’ recommendation that HBOT be offered as an additional intervention to patients with calciphylaxis, especially if they have open wounds, to improve outcomes and expedite wound healing,” the researchers concluded.

Limitations, they noted, included the small sample size, retrospective design, and the potential for not adequately capturing patients who received external care. They were also unable to match patients by disease or wound severity. Large prospective trials would help clarify the role of HBOT for calciphylaxis, they added.

The researchers reported no relevant disclosures.

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

Two shave biopsies were taken, 1 in the center of a previous SCC site with hyperkeratosis, the other in a site not previously affected by SCC but with the physical features of a pustule. Biopsy results from both sites were consistent with erosive pustular dermatosis, an unusual inflammatory disorder that mimics SCC.

Erosive pustular dermatosis of the scalp is an uncommon dermatitis that usually affects older women but may appear in men and women of all ages. It can mimic many other conditions that can affect the scalp, including seborrheic dermatitis, psoriasis, actinic keratosis, and SCC.

The exact causative mechanism is not understood, and cases may develop spontaneously. Rough papules, pustules, crusts, and ulcers develop and (apart from the pustules) share many features of actinic keratoses, SCCs, and field cancerization. The presence of pustules helps point to the diagnosis.

Triggers include previous surgery or physical trauma, burns, skin or hair grafts, and treatment of actinic keratoses with imiquimod, 5-fluourouracil, or photodynamic therapy. Some autoimmune diseases (including Hashimoto thyroiditis, autoimmune hepatitis, and rheumatoid arthritis) have been linked to disease occurrence and severity.¹

Treatment includes potent or super-potent topical steroids such as clobetasol 0.05% ointment. Topical tacrolimus 0.1% ointment and calcipotriene 0.005% cream have been reported as steroid alternatives. Paradoxically, photodynamic therapy, while associated with triggering disease, has also been used therapeutically. Systemic immunomodulators such as cyclosporine 3 mg/kg/d or prednisone 0.5 to 1 mg/kg/d may be needed in severe cases. Antibiotics including topical dapsone 5% gel, systemic dapsone from 50 mg bid to tid, and doxycycline have been helpful due, in part, to their immunomodulatory effects.^1,2

This patient was told to apply topical triamcinolone 0.1% ointment around and over ulcers and pustules and to take doxycycline 100 mg twice daily. The patient cleared well after 6 weeks. He continued to apply topical triamcinolone every few days as maintenance therapy.

He had some mild recurrence after discontinuing all topical and oral therapy, so he currently is being maintained on topical clobetasol 0.05% ointment every other day. He comes in for follow-up appointments every 3 months to monitor for control of the erosive pustular dermatosis of the scalp and for skin cancer surveillance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME

Two shave biopsies were taken, 1 in the center of a previous SCC site with hyperkeratosis, the other in a site not previously affected by SCC but with the physical features of a pustule. Biopsy results from both sites were consistent with erosive pustular dermatosis, an unusual inflammatory disorder that mimics SCC.

Erosive pustular dermatosis of the scalp is an uncommon dermatitis that usually affects older women but may appear in men and women of all ages. It can mimic many other conditions that can affect the scalp, including seborrheic dermatitis, psoriasis, actinic keratosis, and SCC.

The exact causative mechanism is not understood, and cases may develop spontaneously. Rough papules, pustules, crusts, and ulcers develop and (apart from the pustules) share many features of actinic keratoses, SCCs, and field cancerization. The presence of pustules helps point to the diagnosis.

Triggers include previous surgery or physical trauma, burns, skin or hair grafts, and treatment of actinic keratoses with imiquimod, 5-fluourouracil, or photodynamic therapy. Some autoimmune diseases (including Hashimoto thyroiditis, autoimmune hepatitis, and rheumatoid arthritis) have been linked to disease occurrence and severity.¹

Treatment includes potent or super-potent topical steroids such as clobetasol 0.05% ointment. Topical tacrolimus 0.1% ointment and calcipotriene 0.005% cream have been reported as steroid alternatives. Paradoxically, photodynamic therapy, while associated with triggering disease, has also been used therapeutically. Systemic immunomodulators such as cyclosporine 3 mg/kg/d or prednisone 0.5 to 1 mg/kg/d may be needed in severe cases. Antibiotics including topical dapsone 5% gel, systemic dapsone from 50 mg bid to tid, and doxycycline have been helpful due, in part, to their immunomodulatory effects.^1,2

This patient was told to apply topical triamcinolone 0.1% ointment around and over ulcers and pustules and to take doxycycline 100 mg twice daily. The patient cleared well after 6 weeks. He continued to apply topical triamcinolone every few days as maintenance therapy.

He had some mild recurrence after discontinuing all topical and oral therapy, so he currently is being maintained on topical clobetasol 0.05% ointment every other day. He comes in for follow-up appointments every 3 months to monitor for control of the erosive pustular dermatosis of the scalp and for skin cancer surveillance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME

Two shave biopsies were taken, 1 in the center of a previous SCC site with hyperkeratosis, the other in a site not previously affected by SCC but with the physical features of a pustule. Biopsy results from both sites were consistent with erosive pustular dermatosis, an unusual inflammatory disorder that mimics SCC.

Erosive pustular dermatosis of the scalp is an uncommon dermatitis that usually affects older women but may appear in men and women of all ages. It can mimic many other conditions that can affect the scalp, including seborrheic dermatitis, psoriasis, actinic keratosis, and SCC.

The exact causative mechanism is not understood, and cases may develop spontaneously. Rough papules, pustules, crusts, and ulcers develop and (apart from the pustules) share many features of actinic keratoses, SCCs, and field cancerization. The presence of pustules helps point to the diagnosis.

Triggers include previous surgery or physical trauma, burns, skin or hair grafts, and treatment of actinic keratoses with imiquimod, 5-fluourouracil, or photodynamic therapy. Some autoimmune diseases (including Hashimoto thyroiditis, autoimmune hepatitis, and rheumatoid arthritis) have been linked to disease occurrence and severity.¹

Treatment includes potent or super-potent topical steroids such as clobetasol 0.05% ointment. Topical tacrolimus 0.1% ointment and calcipotriene 0.005% cream have been reported as steroid alternatives. Paradoxically, photodynamic therapy, while associated with triggering disease, has also been used therapeutically. Systemic immunomodulators such as cyclosporine 3 mg/kg/d or prednisone 0.5 to 1 mg/kg/d may be needed in severe cases. Antibiotics including topical dapsone 5% gel, systemic dapsone from 50 mg bid to tid, and doxycycline have been helpful due, in part, to their immunomodulatory effects.^1,2

This patient was told to apply topical triamcinolone 0.1% ointment around and over ulcers and pustules and to take doxycycline 100 mg twice daily. The patient cleared well after 6 weeks. He continued to apply topical triamcinolone every few days as maintenance therapy.

He had some mild recurrence after discontinuing all topical and oral therapy, so he currently is being maintained on topical clobetasol 0.05% ointment every other day. He comes in for follow-up appointments every 3 months to monitor for control of the erosive pustular dermatosis of the scalp and for skin cancer surveillance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

Patients with cutaneous Merkel cell carcinoma (MCC) have a higher risk of subsequently developing solid and hematologic cancers, according to a new analysis.

In a cohort of 6,146 patients with a first primary MCC, a total of 725 (11.8%) developed subsequent primary cancers. For solid tumors, the risk was highest for cutaneous melanoma and papillary thyroid carcinoma, while for hematologic cancers, the risk was increased for non-Hodgkin lymphoma.

“Our study does confirm that patients with MCC are at higher risk for developing other cancers,” study author Lisa C. Zaba, MD, PhD, associate professor of dermatology and director of the Merkel cell carcinoma multidisciplinary clinic, Stanford (Calif.) Cancer Center, said in an interview. “MCC is a highly malignant cancer with a 40% recurrence risk.”

Because of this high risk, Dr. Zaba noted that patients with MCC get frequent surveillance with both imaging studies (PET-CT and CT) as well as frequent visits in clinic with MCC experts. “Specifically, a patient with MCC is imaged and seen in clinic every 3-6 months for the first 3 years after diagnosis, and every 6-12 months thereafter for up to 5 years,” she said. “Interestingly, this high level of surveillance may be one reason that we find so many cancers in patients who have been diagnosed with MCC, compared to the general population.”

The study was published online in JAMA Dermatology.

With the death of “Margaritaville” singer Jimmy Buffett, who recently died of MCC 4 years after his diagnosis, this rare, aggressive skin cancer has been put in the spotlight. Survival has been increasing, primarily because of the advent of immunotherapy, and the authors note that it is therefore imperative to better understand the risk of subsequent primary tumors to inform screening and treatment recommendations.

In this cohort study, Dr. Zaba and colleagues identified 6,146 patients from 17 registries of the Surveillance, Epidemiology, and End Results (SEER) Program who had been diagnosed with a first primary cutaneous MCC between 2000 and 2018.

Endpoints were the ratio of observed to expected number of cases of subsequent cancer (Standardized incidence ratio, or SIR) and the excess risk.

Overall, there was an elevated risk of developing a subsequent primary cancer after being diagnosed with MCC (SIR, 1.28; excess risk, 57.25 per 10,000 person-years). This included the risk for all solid tumors including liver (SIR, 1.92; excess risk, 2.77 per 10,000 person-years), pancreas (SIR, 1.65; excess risk, 4.55 per 10,000 person-years), cutaneous melanoma (SIR, 2.36; excess risk, 15.27 per 10,000 person-years), and kidney (SIR, 1.64; excess risk, 3.83 per 10,000 person-years).

There was also a higher risk of developing papillary thyroid carcinoma (PTC) (SIR, 5.26; excess risk, 6.16 per 10,000 person-years).

The risk of developing hematological cancers after MCC was also increased, especially for non-Hodgkin lymphoma (SIR, 2.62; excess risk, 15.48 per 10,000 person-years) and myelodysplastic syndrome (SIR, 2.17; excess risk, 2.73 per 10,000 person-years).

The risk for developing subsequent tumors, including melanoma and non-Hodgkin lymphoma, remained significant for up to 10 years, while the risk for developing PTC and kidney cancers remained for up to 5 years.

“After 3-5 years, when a MCC patient’s risk of MCC recurrence drops below 2%, we do not currently have guidelines in place for additional cancer screening,” Dr. Zaba said. “Regarding patient education, patients with MCC are educated to let us know if they experience any symptoms of cancer between visits, including unintentional weight loss, night sweats, headaches that increasingly worsen, or growing lumps or bumps. These symptoms may occur in a multitude of cancers and not just MCC.”

Weighing in on the study, Jeffrey M. Farma, MD, interim chair, department of surgical oncology at Fox Chase Cancer Center, Philadelphia, noted that MCC is considered to be high risk because of its chances of recurring after surgical resection or spreading to lymph nodes or other areas of the body. “There are approximately 3,000 new cases of melanoma a year in the U.S., and it is 40 times rarer than melanoma,” he said. “Patients are usually diagnosed with Merkel cell carcinoma later in life, and the tumors have been associated with sun exposure and immunosuppression and have also been associated with the polyomavirus.”

That said, however, he emphasized that great strides have been made in treatment. “These tumors are very sensitive to radiation, and we generally treat earlier-stage MCC with a combination of surgery and radiation therapy,” said Dr. Farma. “More recently we have had a lot of success with the use of immunotherapy to treat more advanced MCC.”

Dr. Zaba reported receiving grants from the Kuni Foundation outside the submitted work. No other disclosures were reported. Author Eleni Linos, MD, DrPH, MPH, is supported by grant K24AR075060 from the National Institutes of Health. No other outside funding was reported. Dr. Farma had no disclosures.

SINGAPORE – Can the prolonged use of skin-lightening products, such as hydroquinone, lead to skin cancer?

This question was posed by Ousmane Faye, MD, PhD, director general of Mali’s Bamako Dermatology Hospital, at the World Congress of Dermatology. 

Dr. Faye explored the issue during a hot topics session at the meeting, prefacing that it was an important question to ask because “in West Africa, skin bleaching is very common.”

“There are many local names” for skin bleaching, he said. “For example, in Senegal, it’s called xessal; in Mali and Ivory Coast, its name is caco; in South Africa, there are many names, like ukutsheyisa.”

Skin bleaching refers to the cosmetic misuse of topical agents to change one’s natural skin color. It’s a centuries-old practice that people, mainly women, adopt “to increase attractiveness and self-esteem,” explained Dr. Faye.

To demonstrate how pervasive skin bleaching is on the continent, he presented a slide that summarized figures from six studies spanning the past 2 decades. Prevalence ranged from 25% in Mali (based on a 1993 survey of 210 women) to a high of 79.25% in Benin (from a sample size of 511 women in 2019). In other studies of women in Burkina Faso and Togo, the figures were 44.3% and 58.9%, respectively. The most recently conducted study, which involved 2,689 Senegalese women and was published in 2022, found that nearly 6 in 10 (59.2%) respondents used skin-lightening products.

But skin bleaching isn’t just limited to Africa, said session moderator Omar Lupi, MD, PhD, associate professor of dermatology at the Federal University of the State of Rio de Janeiro, when approached for an independent comment. “It’s a traditional practice around the world. Maybe not in the developed countries, but it’s quite common in Africa, in South America, and in Asia.”

His sentiments are echoed in a meta-analysis that was published in the International Journal of Dermatology in 2019. The work examined 68 studies involving more than 67,000 people across Africa, Asia, Europe, the Middle East, and North America. It found that the pooled lifetime prevalence of skin bleaching was 27.7% (95% confidence interval, 19.6-37.5; P < .01).

“This is an important and interesting topic because our world is shrinking,” Dr. Lupi told this news organization. “Even in countries that don’t have bleaching as a common situation, we now have patients who are migrating from one part [of the world] to another, so bleaching is something that can knock on your door and you need to be prepared.”

Misuse leads to complications

The issue is pertinent to dermatologists because skin bleaching is associated with a wide range of complications. Take, for example, topical steroids, which are the most common products used for bleaching, said Dr. Faye in his talk. 

“Clobetasol can suppress the hypothalamic-pituitary-adrenal (HPA) function,” he said, referring to the body’s main stress response system. “It can also foster skin infection, including bacterial, fungal, viral, and parasitic infection.”

In addition, topical steroids that are misused as skin lighteners have been reported to cause stretch marks, skin atrophy, inflammatory acne, and even metabolic disorders such as diabetes and hypertension, said Dr. Faye.

To further his point, he cited a 2021 prospective case-control study conducted across five sub-Saharan countries, which found that the use of “voluntary cosmetic depigmentation” significantly increased a person’s risk for necrotizing fasciitis of the lower limbs (odds ratio, 2.29; 95% CI, 1.19-3.73; P = .0226).

Similarly, mercury, another substance found in products commonly used to bleach skin, has been associated with problems ranging from rashes to renal toxicity. And because it’s so incredibly harmful, mercury is also known to cause neurologic abnormalities. 

Apart from causing certain conditions, prolonged use of skin-lightening products can change the way existing diseases present themselves as well as their severity, added Dr. Faye. 
 

An increased risk

But what about skin bleaching’s link with cancer? “Skin cancer on Black skin is uncommon, yet it occurs in skin-bleaching women,” said Dr. Faye.

“Since 2000, we have had some cases of skin cancer associated with skin bleaching,” he continued, adding that squamous cell carcinoma (SCC) is the most frequent type of cancer observed. 

If you look at what’s been published on the topic so far, you’ll see that “all the cases of skin cancer are located over the neck or some exposed area when skin bleaching products are used for more than 10 years,” said Dr. Faye. “And most of the time, the age of the patient ranges from 30 to 60 years.”

The first known case in Africa was reported in a 58-year-old woman from Ghana, who had been using skin bleaching products for close to 30 years. The patient presented with tumors on her face, neck, and arms.

Dr. Faye then proceeded to share more than 10 such carcinoma cases. “These previous reports strongly suggest a relationship between skin bleaching and skin cancers,” said Dr. Faye.

Indeed, there have been reports and publications in the literature that support his observation, including one last year, which found that use of the tyrosinase inhibitor hydroquinone was associated with approximately a threefold increased risk for skin cancer.

For some, including Brazil’s Dr. Lupi, Dr. Faye’s talk was enlightening: “I didn’t know about this relationship [of bleaching] with skin cancer, it was something new for me.”

But the prevalence of SCC is very low, compared with that of skin bleaching, Dr. Faye acknowledged. Moreover, the cancer observed in the cases reported could have resulted from a number of reasons, including exposure to harmful ultraviolet rays from the sun and genetic predisposition in addition to the use of bleaching products such as hydroquinone. “Other causes of skin cancer are not excluded,” he said.

To further explore the link between skin bleaching and cancer, “we need case-control studies to provide more evidence,” he added. Until then, dermatologists “should keep on promoting messages” to prevent SCC from occurring. This includes encouraging the use of proper sun protection in addition to discouraging the practice of skin bleaching, which still persists despite more than 10 African nations banning the use of toxic skin-lightening products.

Dr. Faye and Dr. Lupi report no relevant financial relationships.

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

SINGAPORE – Can the prolonged use of skin-lightening products, such as hydroquinone, lead to skin cancer?

This question was posed by Ousmane Faye, MD, PhD, director general of Mali’s Bamako Dermatology Hospital, at the World Congress of Dermatology. 

Dr. Faye explored the issue during a hot topics session at the meeting, prefacing that it was an important question to ask because “in West Africa, skin bleaching is very common.”

“There are many local names” for skin bleaching, he said. “For example, in Senegal, it’s called xessal; in Mali and Ivory Coast, its name is caco; in South Africa, there are many names, like ukutsheyisa.”

Skin bleaching refers to the cosmetic misuse of topical agents to change one’s natural skin color. It’s a centuries-old practice that people, mainly women, adopt “to increase attractiveness and self-esteem,” explained Dr. Faye.

To demonstrate how pervasive skin bleaching is on the continent, he presented a slide that summarized figures from six studies spanning the past 2 decades. Prevalence ranged from 25% in Mali (based on a 1993 survey of 210 women) to a high of 79.25% in Benin (from a sample size of 511 women in 2019). In other studies of women in Burkina Faso and Togo, the figures were 44.3% and 58.9%, respectively. The most recently conducted study, which involved 2,689 Senegalese women and was published in 2022, found that nearly 6 in 10 (59.2%) respondents used skin-lightening products.

But skin bleaching isn’t just limited to Africa, said session moderator Omar Lupi, MD, PhD, associate professor of dermatology at the Federal University of the State of Rio de Janeiro, when approached for an independent comment. “It’s a traditional practice around the world. Maybe not in the developed countries, but it’s quite common in Africa, in South America, and in Asia.”

His sentiments are echoed in a meta-analysis that was published in the International Journal of Dermatology in 2019. The work examined 68 studies involving more than 67,000 people across Africa, Asia, Europe, the Middle East, and North America. It found that the pooled lifetime prevalence of skin bleaching was 27.7% (95% confidence interval, 19.6-37.5; P < .01).

“This is an important and interesting topic because our world is shrinking,” Dr. Lupi told this news organization. “Even in countries that don’t have bleaching as a common situation, we now have patients who are migrating from one part [of the world] to another, so bleaching is something that can knock on your door and you need to be prepared.”

Misuse leads to complications

The issue is pertinent to dermatologists because skin bleaching is associated with a wide range of complications. Take, for example, topical steroids, which are the most common products used for bleaching, said Dr. Faye in his talk. 

“Clobetasol can suppress the hypothalamic-pituitary-adrenal (HPA) function,” he said, referring to the body’s main stress response system. “It can also foster skin infection, including bacterial, fungal, viral, and parasitic infection.”

In addition, topical steroids that are misused as skin lighteners have been reported to cause stretch marks, skin atrophy, inflammatory acne, and even metabolic disorders such as diabetes and hypertension, said Dr. Faye.

To further his point, he cited a 2021 prospective case-control study conducted across five sub-Saharan countries, which found that the use of “voluntary cosmetic depigmentation” significantly increased a person’s risk for necrotizing fasciitis of the lower limbs (odds ratio, 2.29; 95% CI, 1.19-3.73; P = .0226).

Similarly, mercury, another substance found in products commonly used to bleach skin, has been associated with problems ranging from rashes to renal toxicity. And because it’s so incredibly harmful, mercury is also known to cause neurologic abnormalities. 

Apart from causing certain conditions, prolonged use of skin-lightening products can change the way existing diseases present themselves as well as their severity, added Dr. Faye. 
 

An increased risk

But what about skin bleaching’s link with cancer? “Skin cancer on Black skin is uncommon, yet it occurs in skin-bleaching women,” said Dr. Faye.

“Since 2000, we have had some cases of skin cancer associated with skin bleaching,” he continued, adding that squamous cell carcinoma (SCC) is the most frequent type of cancer observed. 

If you look at what’s been published on the topic so far, you’ll see that “all the cases of skin cancer are located over the neck or some exposed area when skin bleaching products are used for more than 10 years,” said Dr. Faye. “And most of the time, the age of the patient ranges from 30 to 60 years.”

The first known case in Africa was reported in a 58-year-old woman from Ghana, who had been using skin bleaching products for close to 30 years. The patient presented with tumors on her face, neck, and arms.

Dr. Faye then proceeded to share more than 10 such carcinoma cases. “These previous reports strongly suggest a relationship between skin bleaching and skin cancers,” said Dr. Faye.

Indeed, there have been reports and publications in the literature that support his observation, including one last year, which found that use of the tyrosinase inhibitor hydroquinone was associated with approximately a threefold increased risk for skin cancer.

For some, including Brazil’s Dr. Lupi, Dr. Faye’s talk was enlightening: “I didn’t know about this relationship [of bleaching] with skin cancer, it was something new for me.”

But the prevalence of SCC is very low, compared with that of skin bleaching, Dr. Faye acknowledged. Moreover, the cancer observed in the cases reported could have resulted from a number of reasons, including exposure to harmful ultraviolet rays from the sun and genetic predisposition in addition to the use of bleaching products such as hydroquinone. “Other causes of skin cancer are not excluded,” he said.

To further explore the link between skin bleaching and cancer, “we need case-control studies to provide more evidence,” he added. Until then, dermatologists “should keep on promoting messages” to prevent SCC from occurring. This includes encouraging the use of proper sun protection in addition to discouraging the practice of skin bleaching, which still persists despite more than 10 African nations banning the use of toxic skin-lightening products.

Dr. Faye and Dr. Lupi report no relevant financial relationships.

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

SINGAPORE – Can the prolonged use of skin-lightening products, such as hydroquinone, lead to skin cancer?

This question was posed by Ousmane Faye, MD, PhD, director general of Mali’s Bamako Dermatology Hospital, at the World Congress of Dermatology. 

Dr. Faye explored the issue during a hot topics session at the meeting, prefacing that it was an important question to ask because “in West Africa, skin bleaching is very common.”

“There are many local names” for skin bleaching, he said. “For example, in Senegal, it’s called xessal; in Mali and Ivory Coast, its name is caco; in South Africa, there are many names, like ukutsheyisa.”

Skin bleaching refers to the cosmetic misuse of topical agents to change one’s natural skin color. It’s a centuries-old practice that people, mainly women, adopt “to increase attractiveness and self-esteem,” explained Dr. Faye.

To demonstrate how pervasive skin bleaching is on the continent, he presented a slide that summarized figures from six studies spanning the past 2 decades. Prevalence ranged from 25% in Mali (based on a 1993 survey of 210 women) to a high of 79.25% in Benin (from a sample size of 511 women in 2019). In other studies of women in Burkina Faso and Togo, the figures were 44.3% and 58.9%, respectively. The most recently conducted study, which involved 2,689 Senegalese women and was published in 2022, found that nearly 6 in 10 (59.2%) respondents used skin-lightening products.

But skin bleaching isn’t just limited to Africa, said session moderator Omar Lupi, MD, PhD, associate professor of dermatology at the Federal University of the State of Rio de Janeiro, when approached for an independent comment. “It’s a traditional practice around the world. Maybe not in the developed countries, but it’s quite common in Africa, in South America, and in Asia.”

His sentiments are echoed in a meta-analysis that was published in the International Journal of Dermatology in 2019. The work examined 68 studies involving more than 67,000 people across Africa, Asia, Europe, the Middle East, and North America. It found that the pooled lifetime prevalence of skin bleaching was 27.7% (95% confidence interval, 19.6-37.5; P < .01).

“This is an important and interesting topic because our world is shrinking,” Dr. Lupi told this news organization. “Even in countries that don’t have bleaching as a common situation, we now have patients who are migrating from one part [of the world] to another, so bleaching is something that can knock on your door and you need to be prepared.”

Misuse leads to complications

The issue is pertinent to dermatologists because skin bleaching is associated with a wide range of complications. Take, for example, topical steroids, which are the most common products used for bleaching, said Dr. Faye in his talk. 

“Clobetasol can suppress the hypothalamic-pituitary-adrenal (HPA) function,” he said, referring to the body’s main stress response system. “It can also foster skin infection, including bacterial, fungal, viral, and parasitic infection.”

In addition, topical steroids that are misused as skin lighteners have been reported to cause stretch marks, skin atrophy, inflammatory acne, and even metabolic disorders such as diabetes and hypertension, said Dr. Faye.

To further his point, he cited a 2021 prospective case-control study conducted across five sub-Saharan countries, which found that the use of “voluntary cosmetic depigmentation” significantly increased a person’s risk for necrotizing fasciitis of the lower limbs (odds ratio, 2.29; 95% CI, 1.19-3.73; P = .0226).

Similarly, mercury, another substance found in products commonly used to bleach skin, has been associated with problems ranging from rashes to renal toxicity. And because it’s so incredibly harmful, mercury is also known to cause neurologic abnormalities. 

Apart from causing certain conditions, prolonged use of skin-lightening products can change the way existing diseases present themselves as well as their severity, added Dr. Faye. 
 

An increased risk

But what about skin bleaching’s link with cancer? “Skin cancer on Black skin is uncommon, yet it occurs in skin-bleaching women,” said Dr. Faye.

“Since 2000, we have had some cases of skin cancer associated with skin bleaching,” he continued, adding that squamous cell carcinoma (SCC) is the most frequent type of cancer observed. 

If you look at what’s been published on the topic so far, you’ll see that “all the cases of skin cancer are located over the neck or some exposed area when skin bleaching products are used for more than 10 years,” said Dr. Faye. “And most of the time, the age of the patient ranges from 30 to 60 years.”

The first known case in Africa was reported in a 58-year-old woman from Ghana, who had been using skin bleaching products for close to 30 years. The patient presented with tumors on her face, neck, and arms.

Dr. Faye then proceeded to share more than 10 such carcinoma cases. “These previous reports strongly suggest a relationship between skin bleaching and skin cancers,” said Dr. Faye.

Indeed, there have been reports and publications in the literature that support his observation, including one last year, which found that use of the tyrosinase inhibitor hydroquinone was associated with approximately a threefold increased risk for skin cancer.

For some, including Brazil’s Dr. Lupi, Dr. Faye’s talk was enlightening: “I didn’t know about this relationship [of bleaching] with skin cancer, it was something new for me.”

But the prevalence of SCC is very low, compared with that of skin bleaching, Dr. Faye acknowledged. Moreover, the cancer observed in the cases reported could have resulted from a number of reasons, including exposure to harmful ultraviolet rays from the sun and genetic predisposition in addition to the use of bleaching products such as hydroquinone. “Other causes of skin cancer are not excluded,” he said.

To further explore the link between skin bleaching and cancer, “we need case-control studies to provide more evidence,” he added. Until then, dermatologists “should keep on promoting messages” to prevent SCC from occurring. This includes encouraging the use of proper sun protection in addition to discouraging the practice of skin bleaching, which still persists despite more than 10 African nations banning the use of toxic skin-lightening products.

Dr. Faye and Dr. Lupi report no relevant financial relationships.

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

This friable vascular papule was most consistent with a lobular capillary hemangioma (LCH), also called a pyogenic granuloma. A shave biopsy was performed at the base of the tumor to confirm the diagnosis and rule out malignant pedunculated tumors, including nodular melanoma, angiosarcoma, and metastatic carcinoma.

LCHs are benign vascular growths that occur on the skin and mucosa, most often in children and young adults. Growth may occur rapidly over days to weeks and tumors may grow to several centimeters in size. Although LCHs are often painless, they do tend to bleed easily with minor trauma.

While the triggering mechanism is unknown, LCHs have been associated with infection, trauma, hormonal factors (especially in the second and third trimesters of pregnancy), and therapy with retinoids. About 5% of pregnancies are associated with the development of an LCH on the oral mucosa, usually in the second or third trimester.¹

Treatment of LCHs is based on small case series and case reports. Individual tumors have a high likelihood of recurrence after a single treatment, so multiple visits for treatment are often recommended. Electrocautery is safe and effective with complete cure occurring after 2 sessions. Similarly, cryotherapy is safe and effective with excellent results after 3 treatment sessions. Cryotherapy may cause depigmentation in patients with darker skin types, so this should be discussed with patients with skin of color. Excision of small lesions is also safe and effective in a single session.²

This patient was treated with light electrodessication and curettage in 2 sessions with complete clearance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This friable vascular papule was most consistent with a lobular capillary hemangioma (LCH), also called a pyogenic granuloma. A shave biopsy was performed at the base of the tumor to confirm the diagnosis and rule out malignant pedunculated tumors, including nodular melanoma, angiosarcoma, and metastatic carcinoma.

LCHs are benign vascular growths that occur on the skin and mucosa, most often in children and young adults. Growth may occur rapidly over days to weeks and tumors may grow to several centimeters in size. Although LCHs are often painless, they do tend to bleed easily with minor trauma.

While the triggering mechanism is unknown, LCHs have been associated with infection, trauma, hormonal factors (especially in the second and third trimesters of pregnancy), and therapy with retinoids. About 5% of pregnancies are associated with the development of an LCH on the oral mucosa, usually in the second or third trimester.¹

Treatment of LCHs is based on small case series and case reports. Individual tumors have a high likelihood of recurrence after a single treatment, so multiple visits for treatment are often recommended. Electrocautery is safe and effective with complete cure occurring after 2 sessions. Similarly, cryotherapy is safe and effective with excellent results after 3 treatment sessions. Cryotherapy may cause depigmentation in patients with darker skin types, so this should be discussed with patients with skin of color. Excision of small lesions is also safe and effective in a single session.²

This patient was treated with light electrodessication and curettage in 2 sessions with complete clearance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This friable vascular papule was most consistent with a lobular capillary hemangioma (LCH), also called a pyogenic granuloma. A shave biopsy was performed at the base of the tumor to confirm the diagnosis and rule out malignant pedunculated tumors, including nodular melanoma, angiosarcoma, and metastatic carcinoma.

LCHs are benign vascular growths that occur on the skin and mucosa, most often in children and young adults. Growth may occur rapidly over days to weeks and tumors may grow to several centimeters in size. Although LCHs are often painless, they do tend to bleed easily with minor trauma.

While the triggering mechanism is unknown, LCHs have been associated with infection, trauma, hormonal factors (especially in the second and third trimesters of pregnancy), and therapy with retinoids. About 5% of pregnancies are associated with the development of an LCH on the oral mucosa, usually in the second or third trimester.¹

Treatment of LCHs is based on small case series and case reports. Individual tumors have a high likelihood of recurrence after a single treatment, so multiple visits for treatment are often recommended. Electrocautery is safe and effective with complete cure occurring after 2 sessions. Similarly, cryotherapy is safe and effective with excellent results after 3 treatment sessions. Cryotherapy may cause depigmentation in patients with darker skin types, so this should be discussed with patients with skin of color. Excision of small lesions is also safe and effective in a single session.²

This patient was treated with light electrodessication and curettage in 2 sessions with complete clearance.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

The Diagnosis: Infantile Transient Smooth Muscle Contraction of the Skin

A diagnosis of infantile transient smooth muscle contraction of the skin (ITSMC) was made based on our patient’s clinical presentation and eliminating the diagnoses in the differential. No treatment ultimately was indicated, as episodes became less frequent over time.

The term infantile transient smooth muscle contraction of the skin was first proposed in 2013 by Torrelo et al,¹ who described 9 newborns with episodic skin rippling occasionally associated with exposure to cold or friction. The authors postulated that ITSMC was the result of a transient contraction of the arrector pili smooth muscle fibers of the skin, secondary to autonomic immaturity, primitive reflexes, or smooth muscle hypersensitivity.¹ Since this first description, ITSMC has remained a rarely reported and poorly understood phenomenon with rare identified cases in the literature.^2,3 Clinical history and examination of infants with intermittent transient skin rippling help to distinguish ITSMC from other diagnoses without the need for biopsy, which is particularly undesirable in the pediatric population.

Congenital smooth muscle hamartoma is a benign proliferation of mature smooth muscle that also can arise from the arrector pili muscles.⁴ In contrast to ITSMC, a hamartoma does not clear; rather, it persists and grows proportionally with the child and is associated with overlying hyperpigmentation and hypertrichosis. The transient nature of ITSMC may be worrisome for mastocytoma; however, this condition presents as erythematous, yellow, red, or brown macules, papules, plaques, or nodules with a positive Darier sign.⁵ Although the differential diagnosis includes the shagreen patch characteristic of tuberous sclerosis, this irregular plaque typically is located on the lower back with overlying peau d’orange skin changes, and our patient lacked other features indicative of this condition.⁶ Becker nevus also remains a consideration in patients with rippled skin, but this entity typically becomes more notable at puberty and is associated with hyperpigmentation and hypertrichosis and is a type of smooth muscle hamartoma.⁴

Our case highlighted the unusual presentation of ITSMC, a condition that can easily go unrecognized, leading to unnecessary referrals and concern. Familiarity with this benign diagnosis is essential to inform prognosis and guide management.

The Diagnosis: Infantile Transient Smooth Muscle Contraction of the Skin

A diagnosis of infantile transient smooth muscle contraction of the skin (ITSMC) was made based on our patient’s clinical presentation and eliminating the diagnoses in the differential. No treatment ultimately was indicated, as episodes became less frequent over time.

The term infantile transient smooth muscle contraction of the skin was first proposed in 2013 by Torrelo et al,¹ who described 9 newborns with episodic skin rippling occasionally associated with exposure to cold or friction. The authors postulated that ITSMC was the result of a transient contraction of the arrector pili smooth muscle fibers of the skin, secondary to autonomic immaturity, primitive reflexes, or smooth muscle hypersensitivity.¹ Since this first description, ITSMC has remained a rarely reported and poorly understood phenomenon with rare identified cases in the literature.^2,3 Clinical history and examination of infants with intermittent transient skin rippling help to distinguish ITSMC from other diagnoses without the need for biopsy, which is particularly undesirable in the pediatric population.

Congenital smooth muscle hamartoma is a benign proliferation of mature smooth muscle that also can arise from the arrector pili muscles.⁴ In contrast to ITSMC, a hamartoma does not clear; rather, it persists and grows proportionally with the child and is associated with overlying hyperpigmentation and hypertrichosis. The transient nature of ITSMC may be worrisome for mastocytoma; however, this condition presents as erythematous, yellow, red, or brown macules, papules, plaques, or nodules with a positive Darier sign.⁵ Although the differential diagnosis includes the shagreen patch characteristic of tuberous sclerosis, this irregular plaque typically is located on the lower back with overlying peau d’orange skin changes, and our patient lacked other features indicative of this condition.⁶ Becker nevus also remains a consideration in patients with rippled skin, but this entity typically becomes more notable at puberty and is associated with hyperpigmentation and hypertrichosis and is a type of smooth muscle hamartoma.⁴

Our case highlighted the unusual presentation of ITSMC, a condition that can easily go unrecognized, leading to unnecessary referrals and concern. Familiarity with this benign diagnosis is essential to inform prognosis and guide management.

The Diagnosis: Infantile Transient Smooth Muscle Contraction of the Skin

A diagnosis of infantile transient smooth muscle contraction of the skin (ITSMC) was made based on our patient’s clinical presentation and eliminating the diagnoses in the differential. No treatment ultimately was indicated, as episodes became less frequent over time.

The term infantile transient smooth muscle contraction of the skin was first proposed in 2013 by Torrelo et al,¹ who described 9 newborns with episodic skin rippling occasionally associated with exposure to cold or friction. The authors postulated that ITSMC was the result of a transient contraction of the arrector pili smooth muscle fibers of the skin, secondary to autonomic immaturity, primitive reflexes, or smooth muscle hypersensitivity.¹ Since this first description, ITSMC has remained a rarely reported and poorly understood phenomenon with rare identified cases in the literature.^2,3 Clinical history and examination of infants with intermittent transient skin rippling help to distinguish ITSMC from other diagnoses without the need for biopsy, which is particularly undesirable in the pediatric population.

Congenital smooth muscle hamartoma is a benign proliferation of mature smooth muscle that also can arise from the arrector pili muscles.⁴ In contrast to ITSMC, a hamartoma does not clear; rather, it persists and grows proportionally with the child and is associated with overlying hyperpigmentation and hypertrichosis. The transient nature of ITSMC may be worrisome for mastocytoma; however, this condition presents as erythematous, yellow, red, or brown macules, papules, plaques, or nodules with a positive Darier sign.⁵ Although the differential diagnosis includes the shagreen patch characteristic of tuberous sclerosis, this irregular plaque typically is located on the lower back with overlying peau d’orange skin changes, and our patient lacked other features indicative of this condition.⁶ Becker nevus also remains a consideration in patients with rippled skin, but this entity typically becomes more notable at puberty and is associated with hyperpigmentation and hypertrichosis and is a type of smooth muscle hamartoma.⁴

Our case highlighted the unusual presentation of ITSMC, a condition that can easily go unrecognized, leading to unnecessary referrals and concern. Familiarity with this benign diagnosis is essential to inform prognosis and guide management.