Dermatology

A deep-shave biopsy indicated that this was an inflamed/irritated solitary neurofibroma. Basal cell carcinoma, inflamed nevus, and Merkel cell carcinoma were also considered.

Most often manifesting in adults, solitary neurofibromas are common nonencapsulated, soft to firm papules that range in size from 2 mm to 2 cm. Solitary neurofibromas are benign and work-up for systemic neurofibromatosis is not indicated. However, if a patient presents with multiple neurofibromas, axillary freckling, or multiple café au lait macules, systemic disease should be considered, followed by molecular testing and/or referral to a medical geneticist or neurofibromatosis clinic.

Although both the triage amalgamated diagnostic algorithm and the 2-step dermoscopy algorithm suggested this lesion was higher risk, it was ultimately found to be benign. This case highlights areas in which dermoscopy and physical exam lack specificity, but this trade-off increases the sensitivity of an algorithmic approach. Solitary pink papules can include some subtle, but fearsome, diagnoses and deserve close attention. In this case, the biopsy not only helped confirm the diagnosis, but it also alleviated the discomfort caused by the neurofibroma.

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Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

A deep-shave biopsy indicated that this was an inflamed/irritated solitary neurofibroma. Basal cell carcinoma, inflamed nevus, and Merkel cell carcinoma were also considered.

Most often manifesting in adults, solitary neurofibromas are common nonencapsulated, soft to firm papules that range in size from 2 mm to 2 cm. Solitary neurofibromas are benign and work-up for systemic neurofibromatosis is not indicated. However, if a patient presents with multiple neurofibromas, axillary freckling, or multiple café au lait macules, systemic disease should be considered, followed by molecular testing and/or referral to a medical geneticist or neurofibromatosis clinic.

Although both the triage amalgamated diagnostic algorithm and the 2-step dermoscopy algorithm suggested this lesion was higher risk, it was ultimately found to be benign. This case highlights areas in which dermoscopy and physical exam lack specificity, but this trade-off increases the sensitivity of an algorithmic approach. Solitary pink papules can include some subtle, but fearsome, diagnoses and deserve close attention. In this case, the biopsy not only helped confirm the diagnosis, but it also alleviated the discomfort caused by the neurofibroma.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

A deep-shave biopsy indicated that this was an inflamed/irritated solitary neurofibroma. Basal cell carcinoma, inflamed nevus, and Merkel cell carcinoma were also considered.

Most often manifesting in adults, solitary neurofibromas are common nonencapsulated, soft to firm papules that range in size from 2 mm to 2 cm. Solitary neurofibromas are benign and work-up for systemic neurofibromatosis is not indicated. However, if a patient presents with multiple neurofibromas, axillary freckling, or multiple café au lait macules, systemic disease should be considered, followed by molecular testing and/or referral to a medical geneticist or neurofibromatosis clinic.

Although both the triage amalgamated diagnostic algorithm and the 2-step dermoscopy algorithm suggested this lesion was higher risk, it was ultimately found to be benign. This case highlights areas in which dermoscopy and physical exam lack specificity, but this trade-off increases the sensitivity of an algorithmic approach. Solitary pink papules can include some subtle, but fearsome, diagnoses and deserve close attention. In this case, the biopsy not only helped confirm the diagnosis, but it also alleviated the discomfort caused by the neurofibroma.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

Melanoma is a type of skin cancer that arises from melanocytes. According to the American Cancer Society, about 106,110 new melanomas will be diagnosed in the United States in 2021.The risk for developing melanoma increases with age. There are multiple clinical forms of cutaneous melanoma. The four main types are superficial spreading melanoma, nodular melanoma, melanoma in situ (lentigo maligna), and acral lentiginous melanoma. Rare variants include amelanotic melanoma, nevoid melanoma, spitzoid melanoma, and desmoplastic melanoma (DM). Melanoma can also rarely affect parts of the eye and mucosa.

Desmoplastic melanoma is a rare variant of spindle cell melanoma that is often difficult to diagnose clinically. It accounts for around 4% of all cutaneous melanomas, according to the Memorial Sloan Kettering Cancer Center. It typically presents as a subtle pigmented, pink, red, or skin colored patch, papule or plaque on sun-exposed skin (head and neck most frequently). Chronic UV exposure has been linked to DM. It may be mistaken for a scar or dermatofibroma. DM tends to grow locally and has less risk for nodal metastasis.¹

Histologic diagnosis may be challenging. Two histologic variants in desmoplastic melanoma have been described: pure and mixed, depending on the degree of desmoplasia and cellularity present in the tumor.¹ Pure DM tends to have a less aggressive course. Melanocytes can appear spindled in a fibrotic stroma. Patchy lymphocyte aggregates may be seen. Perineural invasion is more common in desmoplastic melanoma. Histologically, the differential includes spindle cell carcinoma and sarcoma. Immunostaining is helpful in differentiation.

Our patient had no lymphadenopathy on physical examination. Biopsy revealed a desmoplastic melanoma, 3.6 mm in depth, no ulceration, no regression, mitotic rate 1/mm². He was referred to surgical oncology. The patient underwent wide excision. Sentinel lymph node biopsy was deferred.

It is imperative for dermatologists to be cognizant of this challenging subtype of melanoma when evaluating patients.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to [email protected].

References

1. Chen L et al. J Am Acad Dermatol. 2013 May;68(5):825-33.

Melanoma is a type of skin cancer that arises from melanocytes. According to the American Cancer Society, about 106,110 new melanomas will be diagnosed in the United States in 2021.The risk for developing melanoma increases with age. There are multiple clinical forms of cutaneous melanoma. The four main types are superficial spreading melanoma, nodular melanoma, melanoma in situ (lentigo maligna), and acral lentiginous melanoma. Rare variants include amelanotic melanoma, nevoid melanoma, spitzoid melanoma, and desmoplastic melanoma (DM). Melanoma can also rarely affect parts of the eye and mucosa.

Desmoplastic melanoma is a rare variant of spindle cell melanoma that is often difficult to diagnose clinically. It accounts for around 4% of all cutaneous melanomas, according to the Memorial Sloan Kettering Cancer Center. It typically presents as a subtle pigmented, pink, red, or skin colored patch, papule or plaque on sun-exposed skin (head and neck most frequently). Chronic UV exposure has been linked to DM. It may be mistaken for a scar or dermatofibroma. DM tends to grow locally and has less risk for nodal metastasis.¹

Histologic diagnosis may be challenging. Two histologic variants in desmoplastic melanoma have been described: pure and mixed, depending on the degree of desmoplasia and cellularity present in the tumor.¹ Pure DM tends to have a less aggressive course. Melanocytes can appear spindled in a fibrotic stroma. Patchy lymphocyte aggregates may be seen. Perineural invasion is more common in desmoplastic melanoma. Histologically, the differential includes spindle cell carcinoma and sarcoma. Immunostaining is helpful in differentiation.

Our patient had no lymphadenopathy on physical examination. Biopsy revealed a desmoplastic melanoma, 3.6 mm in depth, no ulceration, no regression, mitotic rate 1/mm². He was referred to surgical oncology. The patient underwent wide excision. Sentinel lymph node biopsy was deferred.

It is imperative for dermatologists to be cognizant of this challenging subtype of melanoma when evaluating patients.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to [email protected].

References

1. Chen L et al. J Am Acad Dermatol. 2013 May;68(5):825-33.

Melanoma is a type of skin cancer that arises from melanocytes. According to the American Cancer Society, about 106,110 new melanomas will be diagnosed in the United States in 2021.The risk for developing melanoma increases with age. There are multiple clinical forms of cutaneous melanoma. The four main types are superficial spreading melanoma, nodular melanoma, melanoma in situ (lentigo maligna), and acral lentiginous melanoma. Rare variants include amelanotic melanoma, nevoid melanoma, spitzoid melanoma, and desmoplastic melanoma (DM). Melanoma can also rarely affect parts of the eye and mucosa.

Desmoplastic melanoma is a rare variant of spindle cell melanoma that is often difficult to diagnose clinically. It accounts for around 4% of all cutaneous melanomas, according to the Memorial Sloan Kettering Cancer Center. It typically presents as a subtle pigmented, pink, red, or skin colored patch, papule or plaque on sun-exposed skin (head and neck most frequently). Chronic UV exposure has been linked to DM. It may be mistaken for a scar or dermatofibroma. DM tends to grow locally and has less risk for nodal metastasis.¹

Histologic diagnosis may be challenging. Two histologic variants in desmoplastic melanoma have been described: pure and mixed, depending on the degree of desmoplasia and cellularity present in the tumor.¹ Pure DM tends to have a less aggressive course. Melanocytes can appear spindled in a fibrotic stroma. Patchy lymphocyte aggregates may be seen. Perineural invasion is more common in desmoplastic melanoma. Histologically, the differential includes spindle cell carcinoma and sarcoma. Immunostaining is helpful in differentiation.

Our patient had no lymphadenopathy on physical examination. Biopsy revealed a desmoplastic melanoma, 3.6 mm in depth, no ulceration, no regression, mitotic rate 1/mm². He was referred to surgical oncology. The patient underwent wide excision. Sentinel lymph node biopsy was deferred.

It is imperative for dermatologists to be cognizant of this challenging subtype of melanoma when evaluating patients.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to [email protected].

References

1. Chen L et al. J Am Acad Dermatol. 2013 May;68(5):825-33.

The American Academy of Pediatrics recently issued five recommendations for the most common dermatologic problems in primary care pediatrics.

Topics include diagnostic and management strategies for a variety of conditions, including atopic dermatitis, fungal infections, and autoimmune conditions.

The AAP Section on Dermatology created the recommendations, which were then reviewed and approved by “more than a dozen relevant AAP committees, councils, and sections,” before final approval by the AAP executive committee and board of directors.

The final list represents a collaborative effort with the Choosing Wisely initiative of the American Board of Internal Medicine Foundation, which aims “to promote conversations between clinicians and patients by helping patients choose care that is supported by evidence, not duplicative of other tests or procedures already received, free from harm, [and] truly necessary.”

Lawrence Eichenfield, MD, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital, San Diego, said that the recommendations are “a fine set of suggestions to help health care providers with some of their pediatric dermatology issues.”

• To begin, the AAP recommended against use of combination topical steroid antifungals for candida skin infections, diaper dermatitis, and tinea corporis, despite approvals for these indications.

“Many providers are unaware that the combination products contain a relatively high-potency topical steroid,” the AAP wrote, noting that “combination products are also often expensive and not covered by pharmacy plans.”

Diaper dermatitis responds best to barrier creams and ointments alone, according to the AAP. If needed, a topical, low-potency steroid may be used no more than twice a day, and tapered with improvement. Similarly, the AAP recommended a separate, low-potency steroid for tinea corporis if pruritus is severe.

• In contrast with this call for minimal treatment intensity, the AAP recommended a more intensive approach to tinea capitis, advising against topical medications alone.

“Topical treatments cannot penetrate the hair shaft itself, which is where the infection lies; thus, monotherapy with topical medications is insufficient to effectively treat the infection,” the AAP wrote. “This insufficient treatment can lead to increased health care costs resulting from multiple visits and the prescribing of ineffective medications.”

While medicated shampoos may still be used as adjunctive treatments for tinea capitis, the AAP recommended primary therapy with either griseofulvin or terbinafine, slightly favoring terbinafine because of adequate efficacy, lesser expense, and shorter regimen.

According to Dr. Eichenfield, a more thorough workup should also be considered.

“Consider culturing possible tinea capitis, so that oral antifungals can be used judiciously and not used for other scaling scalp diagnoses,” he said.

• For most cases of atopic dermatitis, the AAP advised against oral or injected corticosteroids, despite rapid efficacy, because of potential for adverse events, such as adrenal suppression, growth retardation, and disease worsening upon discontinuation. Instead, they recommended topical therapies, “good skin care practices,” and if necessary, “phototherapy and/or steroid-sparing systemic agents.”

“Systemic corticosteroids should only be prescribed for severe flares once all other treatment options have been exhausted and should be limited to a short course for the purpose of bridging to a steroid-sparing agent,” the AAP wrote.

Dr. Eichenfield emphasized this point, noting that new therapies have expanded treatment options.

“Be aware of the advances in atopic dermatitis,” he said, “with newer topical medications and with a new systemic biologic agent approved for moderate to severe refractory atopic dermatitis for ages 6 and older.”

• Turning to diagnostic strategies, the AAP recommended against routine laboratory testing for associated autoimmune diseases among patients with vitiligo, unless clinical signs and/or symptoms of such diseases are present.

“There is no convincing evidence that extensive workups in the absence of specific clinical suspicion improves outcomes for patients and may in fact beget additional costs and harms,” the AAP wrote. “Although many studies suggest ordering these tests, it is based largely on the increased cosegregation of vitiligo and thyroid disease and not on improved outcomes from having identified an abnormal laboratory test result.”

• Similarly, the AAP advised practitioners to avoid routinely testing patients with alopecia areata for other diseases if relevant symptoms and signs aren’t present.

“As in the case of vitiligo, it is more common to find thyroid autoantibodies or subclinical hypothyroidism than overt thyroid disease, unless there are clinically suspicious findings,” the AAP wrote. “Patients identified as having subclinical hypothyroidism are not currently treated and may even have resolution of the abnormal TSH.”

Before drawing blood, Dr. Eichenfield suggested that clinicians first ask the right questions.

“Be comfortable with screening questions about growth, weight, or activity changes to assist with decisions for thyroid screening in a patient with vitiligo or alopecia areata,” he said.

Choosing Wisely is an initiative of the American Board of Internal Medicine. The AAP and Dr. Eichenfield reported no conflicts of interest.

The American Academy of Pediatrics recently issued five recommendations for the most common dermatologic problems in primary care pediatrics.

Topics include diagnostic and management strategies for a variety of conditions, including atopic dermatitis, fungal infections, and autoimmune conditions.

The AAP Section on Dermatology created the recommendations, which were then reviewed and approved by “more than a dozen relevant AAP committees, councils, and sections,” before final approval by the AAP executive committee and board of directors.

The final list represents a collaborative effort with the Choosing Wisely initiative of the American Board of Internal Medicine Foundation, which aims “to promote conversations between clinicians and patients by helping patients choose care that is supported by evidence, not duplicative of other tests or procedures already received, free from harm, [and] truly necessary.”

Lawrence Eichenfield, MD, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital, San Diego, said that the recommendations are “a fine set of suggestions to help health care providers with some of their pediatric dermatology issues.”

• To begin, the AAP recommended against use of combination topical steroid antifungals for candida skin infections, diaper dermatitis, and tinea corporis, despite approvals for these indications.

“Many providers are unaware that the combination products contain a relatively high-potency topical steroid,” the AAP wrote, noting that “combination products are also often expensive and not covered by pharmacy plans.”

Diaper dermatitis responds best to barrier creams and ointments alone, according to the AAP. If needed, a topical, low-potency steroid may be used no more than twice a day, and tapered with improvement. Similarly, the AAP recommended a separate, low-potency steroid for tinea corporis if pruritus is severe.

• In contrast with this call for minimal treatment intensity, the AAP recommended a more intensive approach to tinea capitis, advising against topical medications alone.

“Topical treatments cannot penetrate the hair shaft itself, which is where the infection lies; thus, monotherapy with topical medications is insufficient to effectively treat the infection,” the AAP wrote. “This insufficient treatment can lead to increased health care costs resulting from multiple visits and the prescribing of ineffective medications.”

While medicated shampoos may still be used as adjunctive treatments for tinea capitis, the AAP recommended primary therapy with either griseofulvin or terbinafine, slightly favoring terbinafine because of adequate efficacy, lesser expense, and shorter regimen.

According to Dr. Eichenfield, a more thorough workup should also be considered.

“Consider culturing possible tinea capitis, so that oral antifungals can be used judiciously and not used for other scaling scalp diagnoses,” he said.

• For most cases of atopic dermatitis, the AAP advised against oral or injected corticosteroids, despite rapid efficacy, because of potential for adverse events, such as adrenal suppression, growth retardation, and disease worsening upon discontinuation. Instead, they recommended topical therapies, “good skin care practices,” and if necessary, “phototherapy and/or steroid-sparing systemic agents.”

“Systemic corticosteroids should only be prescribed for severe flares once all other treatment options have been exhausted and should be limited to a short course for the purpose of bridging to a steroid-sparing agent,” the AAP wrote.

Dr. Eichenfield emphasized this point, noting that new therapies have expanded treatment options.

“Be aware of the advances in atopic dermatitis,” he said, “with newer topical medications and with a new systemic biologic agent approved for moderate to severe refractory atopic dermatitis for ages 6 and older.”

• Turning to diagnostic strategies, the AAP recommended against routine laboratory testing for associated autoimmune diseases among patients with vitiligo, unless clinical signs and/or symptoms of such diseases are present.

“There is no convincing evidence that extensive workups in the absence of specific clinical suspicion improves outcomes for patients and may in fact beget additional costs and harms,” the AAP wrote. “Although many studies suggest ordering these tests, it is based largely on the increased cosegregation of vitiligo and thyroid disease and not on improved outcomes from having identified an abnormal laboratory test result.”

• Similarly, the AAP advised practitioners to avoid routinely testing patients with alopecia areata for other diseases if relevant symptoms and signs aren’t present.

“As in the case of vitiligo, it is more common to find thyroid autoantibodies or subclinical hypothyroidism than overt thyroid disease, unless there are clinically suspicious findings,” the AAP wrote. “Patients identified as having subclinical hypothyroidism are not currently treated and may even have resolution of the abnormal TSH.”

Before drawing blood, Dr. Eichenfield suggested that clinicians first ask the right questions.

“Be comfortable with screening questions about growth, weight, or activity changes to assist with decisions for thyroid screening in a patient with vitiligo or alopecia areata,” he said.

Choosing Wisely is an initiative of the American Board of Internal Medicine. The AAP and Dr. Eichenfield reported no conflicts of interest.

The American Academy of Pediatrics recently issued five recommendations for the most common dermatologic problems in primary care pediatrics.

Topics include diagnostic and management strategies for a variety of conditions, including atopic dermatitis, fungal infections, and autoimmune conditions.

The AAP Section on Dermatology created the recommendations, which were then reviewed and approved by “more than a dozen relevant AAP committees, councils, and sections,” before final approval by the AAP executive committee and board of directors.

The final list represents a collaborative effort with the Choosing Wisely initiative of the American Board of Internal Medicine Foundation, which aims “to promote conversations between clinicians and patients by helping patients choose care that is supported by evidence, not duplicative of other tests or procedures already received, free from harm, [and] truly necessary.”

Lawrence Eichenfield, MD, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital, San Diego, said that the recommendations are “a fine set of suggestions to help health care providers with some of their pediatric dermatology issues.”

• To begin, the AAP recommended against use of combination topical steroid antifungals for candida skin infections, diaper dermatitis, and tinea corporis, despite approvals for these indications.

“Many providers are unaware that the combination products contain a relatively high-potency topical steroid,” the AAP wrote, noting that “combination products are also often expensive and not covered by pharmacy plans.”

Diaper dermatitis responds best to barrier creams and ointments alone, according to the AAP. If needed, a topical, low-potency steroid may be used no more than twice a day, and tapered with improvement. Similarly, the AAP recommended a separate, low-potency steroid for tinea corporis if pruritus is severe.

• In contrast with this call for minimal treatment intensity, the AAP recommended a more intensive approach to tinea capitis, advising against topical medications alone.

“Topical treatments cannot penetrate the hair shaft itself, which is where the infection lies; thus, monotherapy with topical medications is insufficient to effectively treat the infection,” the AAP wrote. “This insufficient treatment can lead to increased health care costs resulting from multiple visits and the prescribing of ineffective medications.”

While medicated shampoos may still be used as adjunctive treatments for tinea capitis, the AAP recommended primary therapy with either griseofulvin or terbinafine, slightly favoring terbinafine because of adequate efficacy, lesser expense, and shorter regimen.

According to Dr. Eichenfield, a more thorough workup should also be considered.

“Consider culturing possible tinea capitis, so that oral antifungals can be used judiciously and not used for other scaling scalp diagnoses,” he said.

• For most cases of atopic dermatitis, the AAP advised against oral or injected corticosteroids, despite rapid efficacy, because of potential for adverse events, such as adrenal suppression, growth retardation, and disease worsening upon discontinuation. Instead, they recommended topical therapies, “good skin care practices,” and if necessary, “phototherapy and/or steroid-sparing systemic agents.”

“Systemic corticosteroids should only be prescribed for severe flares once all other treatment options have been exhausted and should be limited to a short course for the purpose of bridging to a steroid-sparing agent,” the AAP wrote.

Dr. Eichenfield emphasized this point, noting that new therapies have expanded treatment options.

“Be aware of the advances in atopic dermatitis,” he said, “with newer topical medications and with a new systemic biologic agent approved for moderate to severe refractory atopic dermatitis for ages 6 and older.”

• Turning to diagnostic strategies, the AAP recommended against routine laboratory testing for associated autoimmune diseases among patients with vitiligo, unless clinical signs and/or symptoms of such diseases are present.

“There is no convincing evidence that extensive workups in the absence of specific clinical suspicion improves outcomes for patients and may in fact beget additional costs and harms,” the AAP wrote. “Although many studies suggest ordering these tests, it is based largely on the increased cosegregation of vitiligo and thyroid disease and not on improved outcomes from having identified an abnormal laboratory test result.”

• Similarly, the AAP advised practitioners to avoid routinely testing patients with alopecia areata for other diseases if relevant symptoms and signs aren’t present.

“As in the case of vitiligo, it is more common to find thyroid autoantibodies or subclinical hypothyroidism than overt thyroid disease, unless there are clinically suspicious findings,” the AAP wrote. “Patients identified as having subclinical hypothyroidism are not currently treated and may even have resolution of the abnormal TSH.”

Before drawing blood, Dr. Eichenfield suggested that clinicians first ask the right questions.

“Be comfortable with screening questions about growth, weight, or activity changes to assist with decisions for thyroid screening in a patient with vitiligo or alopecia areata,” he said.

Choosing Wisely is an initiative of the American Board of Internal Medicine. The AAP and Dr. Eichenfield reported no conflicts of interest.

ANSWER

The correct diagnosis is Darier disease (choice “d”).

DISCUSSION

Darier disease, also known as Darier-White disease or keratosis follicularis, is an inherited defect transmitted by autosomal dominant mode. The pathophysiologic process is a breakdown of cell adhesion that normally binds keratin filaments to tiny connecting fibers called desmosomes.

Darier disease manifests with a “branny” papulosquamous rash, typically arising in the third decade of life and affecting the chest, scalp, back, and intertriginous areas. The nail and intraoral findings noted in this patient are typical. In the author’s experience, the former is more commonly seen and is essentially pathognomic for the disease.

Darier disease is relatively rare, occurring in 1:30,000 to 1:100,000 population, depending on the geographic area studied. Men and women are equally affected, although it is more common in those with darker skin.

The differential outlined in the answer choices is reasonable, considering the condition’s rarity and how unlikely it is to manifest solely in the inframammary area. One could conclude that, just as with psoriasis (choice “b”) and seborrhea, intertrigo (choice “c”) is not always a primary process. And although yeast infection (choice “a”) can complicate any florid rash in this area, topical and oral anti-yeast treatment had utterly failed to help.

TREATMENT

Isotretinoin is used in cases such as this one, but it only offers temporary relief. For less severe cases, oral antibiotics (eg minocycline) or topical steroids (used with caution given the risk for atrophy in the inframammary area) often suffice. This patient’s prognosis is guarded at best, although control of the worst is certainly possible.

ANSWER

The correct diagnosis is Darier disease (choice “d”).

DISCUSSION

Darier disease, also known as Darier-White disease or keratosis follicularis, is an inherited defect transmitted by autosomal dominant mode. The pathophysiologic process is a breakdown of cell adhesion that normally binds keratin filaments to tiny connecting fibers called desmosomes.

Darier disease manifests with a “branny” papulosquamous rash, typically arising in the third decade of life and affecting the chest, scalp, back, and intertriginous areas. The nail and intraoral findings noted in this patient are typical. In the author’s experience, the former is more commonly seen and is essentially pathognomic for the disease.

Darier disease is relatively rare, occurring in 1:30,000 to 1:100,000 population, depending on the geographic area studied. Men and women are equally affected, although it is more common in those with darker skin.

The differential outlined in the answer choices is reasonable, considering the condition’s rarity and how unlikely it is to manifest solely in the inframammary area. One could conclude that, just as with psoriasis (choice “b”) and seborrhea, intertrigo (choice “c”) is not always a primary process. And although yeast infection (choice “a”) can complicate any florid rash in this area, topical and oral anti-yeast treatment had utterly failed to help.

TREATMENT

Isotretinoin is used in cases such as this one, but it only offers temporary relief. For less severe cases, oral antibiotics (eg minocycline) or topical steroids (used with caution given the risk for atrophy in the inframammary area) often suffice. This patient’s prognosis is guarded at best, although control of the worst is certainly possible.

ANSWER

The correct diagnosis is Darier disease (choice “d”).

DISCUSSION

Darier disease, also known as Darier-White disease or keratosis follicularis, is an inherited defect transmitted by autosomal dominant mode. The pathophysiologic process is a breakdown of cell adhesion that normally binds keratin filaments to tiny connecting fibers called desmosomes.

Darier disease manifests with a “branny” papulosquamous rash, typically arising in the third decade of life and affecting the chest, scalp, back, and intertriginous areas. The nail and intraoral findings noted in this patient are typical. In the author’s experience, the former is more commonly seen and is essentially pathognomic for the disease.

Darier disease is relatively rare, occurring in 1:30,000 to 1:100,000 population, depending on the geographic area studied. Men and women are equally affected, although it is more common in those with darker skin.

The differential outlined in the answer choices is reasonable, considering the condition’s rarity and how unlikely it is to manifest solely in the inframammary area. One could conclude that, just as with psoriasis (choice “b”) and seborrhea, intertrigo (choice “c”) is not always a primary process. And although yeast infection (choice “a”) can complicate any florid rash in this area, topical and oral anti-yeast treatment had utterly failed to help.

TREATMENT

Isotretinoin is used in cases such as this one, but it only offers temporary relief. For less severe cases, oral antibiotics (eg minocycline) or topical steroids (used with caution given the risk for atrophy in the inframammary area) often suffice. This patient’s prognosis is guarded at best, although control of the worst is certainly possible.

Vasodilators may have a protective effect against rosacea, results from a single-center retrospective cohort study showed.

“Our initial hypothesis was that perhaps antihypertensive agents might be associated with worsening rosacea,” one of the study authors, Jennifer G. Powers, MD, associate professor of dermatology at the University of Iowa, Iowa City, said in an interview. “What we found was exactly the opposite – that in fact their presence in a medical chart correlated with lower rates of rosacea diagnoses, as defined by ICD 9/10 codes.”

According to the researchers, who published their findings in the Journal of the American Academy of Dermatology, cases of acute vasodilator-induced rosacea have been reported, but no long-term association has been established. “In fact, many widely used antihypertensive medications modulate peripheral vascular tone,” they wrote. “Therefore, chronic use in patients with hypertension may reduce damage to peripheral vessels, and thus decrease risk of rosacea.”

To determine the correlates between vasodilator use and risk of rosacea, Dr. Powers and colleagues identified 680 hypertensive patients being treated with vasodilators or a thiazide diuretic in whom rosacea developed within 5 years of initiating therapy between June 1, 2006, and April 31, 2019. Vasodilator therapies included angiotensin-converting enzyme (ACE) inhibitors, angiotensin II receptor blockers (ARBs), beta-blockers, and calcium channel blockers (CCBs). Patients on thiazide diuretics served as the control group. The researchers stratified the patients by age, gender, race, diabetes, chronic kidney disease, and coronary artery disease and calculated relative risk estimates comparing vasodilators with thiazides between strata.

Of the 680 patients, all but 40 were White; 127 were on thiazides, and the remaining 553 were on vasodilators. Overall, the researchers observed that use of vasodilators had a protective effect on the development of rosacea within 5 years, compared with thiazides (relative risk [RR], 0.56; P less than .0001). Specifically, the relative risk was 0.50 for ACE-inhibitors (P less than .0001); 0.69 for ARBs (P = .041); 0.55 for beta-blockers (P less than .0001); and 0.39 for CCBs (P less than .0001).

Dr. Powers and colleagues also observed significant inverse correlations in ACE-inhibitors, beta-blockers, and CCBs among White women aged 50 and older, but no significance was observed in non-White subgroups. The cohorts of patients with chronic kidney disease and coronary artery disease were too small for analysis.

“We were very surprised to find that many of the agents we think of as vasodilators might actually be beneficial for rosacea,” Dr. Powers said. “We would like to see these results reproduced in larger population studies. There are also potential questions about the mechanism at play. However, should these findings hold true, [it’s] all the more reason for our rosacea patients with hypertension to be managed well. They need not fear that those medications are worsening disease. Also, there might be new therapeutic options based on this data.”

The study received funding support from the National Center for Advancing Translational Sciences. The researchers reported having no financial disclosures.

One of Dr. Powers’ coauthors is her husband, Edward M. Powers, MD, a cardiology fellow at the University of Iowa. “We sometimes bounce ideas off one another and will talk about how systemic effects on the vasculature may impact skin disease,” she said, noting that they also published a report on statins and atopic dermatitis.

[email protected]

Vasodilators may have a protective effect against rosacea, results from a single-center retrospective cohort study showed.

“Our initial hypothesis was that perhaps antihypertensive agents might be associated with worsening rosacea,” one of the study authors, Jennifer G. Powers, MD, associate professor of dermatology at the University of Iowa, Iowa City, said in an interview. “What we found was exactly the opposite – that in fact their presence in a medical chart correlated with lower rates of rosacea diagnoses, as defined by ICD 9/10 codes.”

According to the researchers, who published their findings in the Journal of the American Academy of Dermatology, cases of acute vasodilator-induced rosacea have been reported, but no long-term association has been established. “In fact, many widely used antihypertensive medications modulate peripheral vascular tone,” they wrote. “Therefore, chronic use in patients with hypertension may reduce damage to peripheral vessels, and thus decrease risk of rosacea.”

To determine the correlates between vasodilator use and risk of rosacea, Dr. Powers and colleagues identified 680 hypertensive patients being treated with vasodilators or a thiazide diuretic in whom rosacea developed within 5 years of initiating therapy between June 1, 2006, and April 31, 2019. Vasodilator therapies included angiotensin-converting enzyme (ACE) inhibitors, angiotensin II receptor blockers (ARBs), beta-blockers, and calcium channel blockers (CCBs). Patients on thiazide diuretics served as the control group. The researchers stratified the patients by age, gender, race, diabetes, chronic kidney disease, and coronary artery disease and calculated relative risk estimates comparing vasodilators with thiazides between strata.

Of the 680 patients, all but 40 were White; 127 were on thiazides, and the remaining 553 were on vasodilators. Overall, the researchers observed that use of vasodilators had a protective effect on the development of rosacea within 5 years, compared with thiazides (relative risk [RR], 0.56; P less than .0001). Specifically, the relative risk was 0.50 for ACE-inhibitors (P less than .0001); 0.69 for ARBs (P = .041); 0.55 for beta-blockers (P less than .0001); and 0.39 for CCBs (P less than .0001).

Dr. Powers and colleagues also observed significant inverse correlations in ACE-inhibitors, beta-blockers, and CCBs among White women aged 50 and older, but no significance was observed in non-White subgroups. The cohorts of patients with chronic kidney disease and coronary artery disease were too small for analysis.

“We were very surprised to find that many of the agents we think of as vasodilators might actually be beneficial for rosacea,” Dr. Powers said. “We would like to see these results reproduced in larger population studies. There are also potential questions about the mechanism at play. However, should these findings hold true, [it’s] all the more reason for our rosacea patients with hypertension to be managed well. They need not fear that those medications are worsening disease. Also, there might be new therapeutic options based on this data.”

The study received funding support from the National Center for Advancing Translational Sciences. The researchers reported having no financial disclosures.

One of Dr. Powers’ coauthors is her husband, Edward M. Powers, MD, a cardiology fellow at the University of Iowa. “We sometimes bounce ideas off one another and will talk about how systemic effects on the vasculature may impact skin disease,” she said, noting that they also published a report on statins and atopic dermatitis.

[email protected]

Vasodilators may have a protective effect against rosacea, results from a single-center retrospective cohort study showed.

“Our initial hypothesis was that perhaps antihypertensive agents might be associated with worsening rosacea,” one of the study authors, Jennifer G. Powers, MD, associate professor of dermatology at the University of Iowa, Iowa City, said in an interview. “What we found was exactly the opposite – that in fact their presence in a medical chart correlated with lower rates of rosacea diagnoses, as defined by ICD 9/10 codes.”

According to the researchers, who published their findings in the Journal of the American Academy of Dermatology, cases of acute vasodilator-induced rosacea have been reported, but no long-term association has been established. “In fact, many widely used antihypertensive medications modulate peripheral vascular tone,” they wrote. “Therefore, chronic use in patients with hypertension may reduce damage to peripheral vessels, and thus decrease risk of rosacea.”

To determine the correlates between vasodilator use and risk of rosacea, Dr. Powers and colleagues identified 680 hypertensive patients being treated with vasodilators or a thiazide diuretic in whom rosacea developed within 5 years of initiating therapy between June 1, 2006, and April 31, 2019. Vasodilator therapies included angiotensin-converting enzyme (ACE) inhibitors, angiotensin II receptor blockers (ARBs), beta-blockers, and calcium channel blockers (CCBs). Patients on thiazide diuretics served as the control group. The researchers stratified the patients by age, gender, race, diabetes, chronic kidney disease, and coronary artery disease and calculated relative risk estimates comparing vasodilators with thiazides between strata.

Of the 680 patients, all but 40 were White; 127 were on thiazides, and the remaining 553 were on vasodilators. Overall, the researchers observed that use of vasodilators had a protective effect on the development of rosacea within 5 years, compared with thiazides (relative risk [RR], 0.56; P less than .0001). Specifically, the relative risk was 0.50 for ACE-inhibitors (P less than .0001); 0.69 for ARBs (P = .041); 0.55 for beta-blockers (P less than .0001); and 0.39 for CCBs (P less than .0001).

Dr. Powers and colleagues also observed significant inverse correlations in ACE-inhibitors, beta-blockers, and CCBs among White women aged 50 and older, but no significance was observed in non-White subgroups. The cohorts of patients with chronic kidney disease and coronary artery disease were too small for analysis.

“We were very surprised to find that many of the agents we think of as vasodilators might actually be beneficial for rosacea,” Dr. Powers said. “We would like to see these results reproduced in larger population studies. There are also potential questions about the mechanism at play. However, should these findings hold true, [it’s] all the more reason for our rosacea patients with hypertension to be managed well. They need not fear that those medications are worsening disease. Also, there might be new therapeutic options based on this data.”

The study received funding support from the National Center for Advancing Translational Sciences. The researchers reported having no financial disclosures.

One of Dr. Powers’ coauthors is her husband, Edward M. Powers, MD, a cardiology fellow at the University of Iowa. “We sometimes bounce ideas off one another and will talk about how systemic effects on the vasculature may impact skin disease,” she said, noting that they also published a report on statins and atopic dermatitis.

[email protected]

A wide variety of medications exists for treating hyperhidrosis, a dermatologist told colleagues, but before prescribing anything to a pediatric patient, he recommended, ask the patient a simple question: “What bothers you the most?”

The answer will provide guidance for developing a step-by-step treatment strategy and help provide the patient “a set of realistic expectations in terms of what the response will look like,” George Hightower, MD, PhD, a pediatric dermatologist at Rady Children’s Hospital and the University of California, San Diego, said at MedscapeLive’s Women’s & Pediatric Dermatology Seminar.

A similar question-based approach will help guide therapy for patients with hidradenitis suppurativa (HS), he said.

With regards to hyperhidrosis, Dr. Hightower said that patients most commonly complain that their underarms are too smelly, too sweaty, and red, itchy, or painful. Causes, he said, can include irritation/contact dermatitis, folliculitis, and seborrheic dermatitis, as well as hyperhidrosis or HS.

Primary focal axillary hyperhidrosis is defined as focal, visible, excessive sweating for at least 6 months without an apparent cause plus at least two of the following characteristics: Sweating is bilateral and relatively symmetric, it impairs daily activities, it starts before the age of 25 with at least one episode per week (many patients have it daily), a family history of idiopathic hyperhidrosis is present, and focal sweating does not occur during sleep.

Secondary hyperhidrosis can be linked to other conditions, such as a spinal column injury, Dr. Hightower noted.

The first step on the treatment ladder is topical 20% aluminum chloride, which is available over the counter. This should be applied nightly for 1 week then every 1-2 weeks, Dr. Hightower recommended. All of his patients with hyperhidrosis have had at least one trial of this treatment.

The next option is daily topical treatment with 2.4% glycopyrronium tosylate (Qbrexza) cloths, approved by the Food and Drug Administration in 2018 for primary axillary hyperhidrosis in patients aged 9 and older. According to the prescribing information, dry mouth was by far the most common treatment-associated adverse effect in clinical trials (24% versus almost 6% among those on vehicle). As for skin reactions, erythema occurred in about 17% of both the intervention and vehicle groups, and burning/stinging occurred in 14% of those on treatment and almost 17% of those on vehicle.

“If they’re not able to get access to the cloths due to [insurance] coverage issues, or they don’t allow them to reach the clinical endpoint desired, then I use an oral daily glycopyrrolate pill,” Dr. Hightower said.

He recommends 1 mg to 6 mg daily of the anticholinergic drug, which has been used off-label for hyperhidrosis for several years. A 2012 study of 31 children with hyperhidrosis, he noted, supported the use of the drug. The retrospective study found that 90% of the patients, at a mean daily dose of 2 mg, experienced improvements, reported as major in 71%. In addition, patients experienced improvement within hours of taking the medication, and benefits disappeared within a day of stopping the medication. In the study, patients were on the treatment for an average of 2.1 years, and 29% experienced side effects, which were dose related; the most common were dry mouth in 26% and dry eyes in 10%.

According to goodrx.com, a month’s supply of 2 mg of the drug costs as little as $13 with a discount or coupon.

The next steps in treatment are procedural interventions such as microwave-based therapies.

Dr. Hightower said that patients should be advised that treatment may take years, and to encourage them to return for follow-up. He suggested this helpful message: “We’re still trying to find the best treatment for you, and we’ll need to see you back in the office.”
 

Hidradenitis suppurativa

Dr. Hightower said that too often, HS goes undiagnosed for a significant period of time, preventing patients from seeing a dermatologist for treatment. Hallmarks of HS include inflammatory nodules, abscesses, and scarring, he said. “It can be disfiguring, painful, embarrassing, and associated with significantly decreased quality of life. Early recognition in terms of making and solidifying the diagnosis is important so we can prevent further worsening of the disease.”

The goal of treatment include preventing scars and unnecessary emergency department visits, and stopping flares from worsening, Dr. Hightower said. For specifics, he pointed to clinical management guidelines released by the United States and Canadian hidradenitis suppurativa foundations in 2019.

Make sure to set individualized treatment goals and understand the impact of treatment on the patient’s interactions with family, school, and peers, he said. And keep in mind that “parent-defined goals may be different from patient-defined goals.”

Dr. Hightower reported no relevant disclosures. MedscapeLive and this news organization are owned by the same parent company

A wide variety of medications exists for treating hyperhidrosis, a dermatologist told colleagues, but before prescribing anything to a pediatric patient, he recommended, ask the patient a simple question: “What bothers you the most?”

The answer will provide guidance for developing a step-by-step treatment strategy and help provide the patient “a set of realistic expectations in terms of what the response will look like,” George Hightower, MD, PhD, a pediatric dermatologist at Rady Children’s Hospital and the University of California, San Diego, said at MedscapeLive’s Women’s & Pediatric Dermatology Seminar.

A similar question-based approach will help guide therapy for patients with hidradenitis suppurativa (HS), he said.

With regards to hyperhidrosis, Dr. Hightower said that patients most commonly complain that their underarms are too smelly, too sweaty, and red, itchy, or painful. Causes, he said, can include irritation/contact dermatitis, folliculitis, and seborrheic dermatitis, as well as hyperhidrosis or HS.

Primary focal axillary hyperhidrosis is defined as focal, visible, excessive sweating for at least 6 months without an apparent cause plus at least two of the following characteristics: Sweating is bilateral and relatively symmetric, it impairs daily activities, it starts before the age of 25 with at least one episode per week (many patients have it daily), a family history of idiopathic hyperhidrosis is present, and focal sweating does not occur during sleep.

Secondary hyperhidrosis can be linked to other conditions, such as a spinal column injury, Dr. Hightower noted.

The first step on the treatment ladder is topical 20% aluminum chloride, which is available over the counter. This should be applied nightly for 1 week then every 1-2 weeks, Dr. Hightower recommended. All of his patients with hyperhidrosis have had at least one trial of this treatment.

The next option is daily topical treatment with 2.4% glycopyrronium tosylate (Qbrexza) cloths, approved by the Food and Drug Administration in 2018 for primary axillary hyperhidrosis in patients aged 9 and older. According to the prescribing information, dry mouth was by far the most common treatment-associated adverse effect in clinical trials (24% versus almost 6% among those on vehicle). As for skin reactions, erythema occurred in about 17% of both the intervention and vehicle groups, and burning/stinging occurred in 14% of those on treatment and almost 17% of those on vehicle.

“If they’re not able to get access to the cloths due to [insurance] coverage issues, or they don’t allow them to reach the clinical endpoint desired, then I use an oral daily glycopyrrolate pill,” Dr. Hightower said.

He recommends 1 mg to 6 mg daily of the anticholinergic drug, which has been used off-label for hyperhidrosis for several years. A 2012 study of 31 children with hyperhidrosis, he noted, supported the use of the drug. The retrospective study found that 90% of the patients, at a mean daily dose of 2 mg, experienced improvements, reported as major in 71%. In addition, patients experienced improvement within hours of taking the medication, and benefits disappeared within a day of stopping the medication. In the study, patients were on the treatment for an average of 2.1 years, and 29% experienced side effects, which were dose related; the most common were dry mouth in 26% and dry eyes in 10%.

According to goodrx.com, a month’s supply of 2 mg of the drug costs as little as $13 with a discount or coupon.

The next steps in treatment are procedural interventions such as microwave-based therapies.

Dr. Hightower said that patients should be advised that treatment may take years, and to encourage them to return for follow-up. He suggested this helpful message: “We’re still trying to find the best treatment for you, and we’ll need to see you back in the office.”
 

Hidradenitis suppurativa

Dr. Hightower said that too often, HS goes undiagnosed for a significant period of time, preventing patients from seeing a dermatologist for treatment. Hallmarks of HS include inflammatory nodules, abscesses, and scarring, he said. “It can be disfiguring, painful, embarrassing, and associated with significantly decreased quality of life. Early recognition in terms of making and solidifying the diagnosis is important so we can prevent further worsening of the disease.”

The goal of treatment include preventing scars and unnecessary emergency department visits, and stopping flares from worsening, Dr. Hightower said. For specifics, he pointed to clinical management guidelines released by the United States and Canadian hidradenitis suppurativa foundations in 2019.

Make sure to set individualized treatment goals and understand the impact of treatment on the patient’s interactions with family, school, and peers, he said. And keep in mind that “parent-defined goals may be different from patient-defined goals.”

Dr. Hightower reported no relevant disclosures. MedscapeLive and this news organization are owned by the same parent company

A wide variety of medications exists for treating hyperhidrosis, a dermatologist told colleagues, but before prescribing anything to a pediatric patient, he recommended, ask the patient a simple question: “What bothers you the most?”

The answer will provide guidance for developing a step-by-step treatment strategy and help provide the patient “a set of realistic expectations in terms of what the response will look like,” George Hightower, MD, PhD, a pediatric dermatologist at Rady Children’s Hospital and the University of California, San Diego, said at MedscapeLive’s Women’s & Pediatric Dermatology Seminar.

A similar question-based approach will help guide therapy for patients with hidradenitis suppurativa (HS), he said.

With regards to hyperhidrosis, Dr. Hightower said that patients most commonly complain that their underarms are too smelly, too sweaty, and red, itchy, or painful. Causes, he said, can include irritation/contact dermatitis, folliculitis, and seborrheic dermatitis, as well as hyperhidrosis or HS.

Primary focal axillary hyperhidrosis is defined as focal, visible, excessive sweating for at least 6 months without an apparent cause plus at least two of the following characteristics: Sweating is bilateral and relatively symmetric, it impairs daily activities, it starts before the age of 25 with at least one episode per week (many patients have it daily), a family history of idiopathic hyperhidrosis is present, and focal sweating does not occur during sleep.

Secondary hyperhidrosis can be linked to other conditions, such as a spinal column injury, Dr. Hightower noted.

The first step on the treatment ladder is topical 20% aluminum chloride, which is available over the counter. This should be applied nightly for 1 week then every 1-2 weeks, Dr. Hightower recommended. All of his patients with hyperhidrosis have had at least one trial of this treatment.

The next option is daily topical treatment with 2.4% glycopyrronium tosylate (Qbrexza) cloths, approved by the Food and Drug Administration in 2018 for primary axillary hyperhidrosis in patients aged 9 and older. According to the prescribing information, dry mouth was by far the most common treatment-associated adverse effect in clinical trials (24% versus almost 6% among those on vehicle). As for skin reactions, erythema occurred in about 17% of both the intervention and vehicle groups, and burning/stinging occurred in 14% of those on treatment and almost 17% of those on vehicle.

“If they’re not able to get access to the cloths due to [insurance] coverage issues, or they don’t allow them to reach the clinical endpoint desired, then I use an oral daily glycopyrrolate pill,” Dr. Hightower said.

He recommends 1 mg to 6 mg daily of the anticholinergic drug, which has been used off-label for hyperhidrosis for several years. A 2012 study of 31 children with hyperhidrosis, he noted, supported the use of the drug. The retrospective study found that 90% of the patients, at a mean daily dose of 2 mg, experienced improvements, reported as major in 71%. In addition, patients experienced improvement within hours of taking the medication, and benefits disappeared within a day of stopping the medication. In the study, patients were on the treatment for an average of 2.1 years, and 29% experienced side effects, which were dose related; the most common were dry mouth in 26% and dry eyes in 10%.

According to goodrx.com, a month’s supply of 2 mg of the drug costs as little as $13 with a discount or coupon.

The next steps in treatment are procedural interventions such as microwave-based therapies.

Dr. Hightower said that patients should be advised that treatment may take years, and to encourage them to return for follow-up. He suggested this helpful message: “We’re still trying to find the best treatment for you, and we’ll need to see you back in the office.”
 

Hidradenitis suppurativa

Dr. Hightower said that too often, HS goes undiagnosed for a significant period of time, preventing patients from seeing a dermatologist for treatment. Hallmarks of HS include inflammatory nodules, abscesses, and scarring, he said. “It can be disfiguring, painful, embarrassing, and associated with significantly decreased quality of life. Early recognition in terms of making and solidifying the diagnosis is important so we can prevent further worsening of the disease.”

The goal of treatment include preventing scars and unnecessary emergency department visits, and stopping flares from worsening, Dr. Hightower said. For specifics, he pointed to clinical management guidelines released by the United States and Canadian hidradenitis suppurativa foundations in 2019.

Make sure to set individualized treatment goals and understand the impact of treatment on the patient’s interactions with family, school, and peers, he said. And keep in mind that “parent-defined goals may be different from patient-defined goals.”

Dr. Hightower reported no relevant disclosures. MedscapeLive and this news organization are owned by the same parent company

In addition to the patient’s SK, the second finding was diagnosed as a thin melanoma. The clinical appearance of SKs and nevi or melanoma can overlap. Dermoscopy is a helpful tool in distinguishing between them, even when juxtaposed in a collision lesion such as this.¹

Dermoscopy of the superior portion of the lesion demonstrated a well-demarcated brown, waxy papule with milia-like cysts, consistent with an SK. Inferiorly, the dermoscopic features included atypical pigment network, asymmetrical streaks, and blue-white veil, suggestive of melanoma or an atypical melanocytic neoplasm. A deep-shave biopsy was performed of the lower section, aiming for a narrow margin (1-3 mm) of normal skin. The biopsy confirmed a superficial spreading melanoma with a Breslow depth of 0.5 mm with 0 mitoses per high-power field.

A deep-shave biopsy was chosen over a punch biopsy because the latter would be unlikely to sample the entire lesion.

One month after the initial biopsy, a wide local excision with a 1-cm margin was performed. The planned follow-up for the patient was skin exams every 3 months for the first year, every 6 months for the next 4 years, and then annually for life.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

In addition to the patient’s SK, the second finding was diagnosed as a thin melanoma. The clinical appearance of SKs and nevi or melanoma can overlap. Dermoscopy is a helpful tool in distinguishing between them, even when juxtaposed in a collision lesion such as this.¹

Dermoscopy of the superior portion of the lesion demonstrated a well-demarcated brown, waxy papule with milia-like cysts, consistent with an SK. Inferiorly, the dermoscopic features included atypical pigment network, asymmetrical streaks, and blue-white veil, suggestive of melanoma or an atypical melanocytic neoplasm. A deep-shave biopsy was performed of the lower section, aiming for a narrow margin (1-3 mm) of normal skin. The biopsy confirmed a superficial spreading melanoma with a Breslow depth of 0.5 mm with 0 mitoses per high-power field.

A deep-shave biopsy was chosen over a punch biopsy because the latter would be unlikely to sample the entire lesion.

One month after the initial biopsy, a wide local excision with a 1-cm margin was performed. The planned follow-up for the patient was skin exams every 3 months for the first year, every 6 months for the next 4 years, and then annually for life.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

In addition to the patient’s SK, the second finding was diagnosed as a thin melanoma. The clinical appearance of SKs and nevi or melanoma can overlap. Dermoscopy is a helpful tool in distinguishing between them, even when juxtaposed in a collision lesion such as this.¹

Dermoscopy of the superior portion of the lesion demonstrated a well-demarcated brown, waxy papule with milia-like cysts, consistent with an SK. Inferiorly, the dermoscopic features included atypical pigment network, asymmetrical streaks, and blue-white veil, suggestive of melanoma or an atypical melanocytic neoplasm. A deep-shave biopsy was performed of the lower section, aiming for a narrow margin (1-3 mm) of normal skin. The biopsy confirmed a superficial spreading melanoma with a Breslow depth of 0.5 mm with 0 mitoses per high-power field.

A deep-shave biopsy was chosen over a punch biopsy because the latter would be unlikely to sample the entire lesion.

One month after the initial biopsy, a wide local excision with a 1-cm margin was performed. The planned follow-up for the patient was skin exams every 3 months for the first year, every 6 months for the next 4 years, and then annually for life.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

An exploratory analysis recently published in the Journal of the American Academy of Dermatology examines whether it is possible to classify dermatologists and internists into different patterns of prescribing behavior for patients with acne.

“Prior research has highlighted that prescribing for acne may not be aligned with guideline recommendations, including the overuse of oral antibiotics and lack of use of concomitant topical medications such as topical retinoids,” the study’s corresponding author, John S. Barbieri, MD, MBA, of the department of dermatology at the University of Pennsylvania, Philadelphia, said in an interview.

“In addition, there is substantial variation in prescribing practices among clinicians. We were interested in examining whether it is possible to identify different prescribing phenotypes among dermatologists and internists who care for patients with acne. By identifying such groups, it would facilitate future qualitative interviews to understand factors that might contribute to clinicians having certain prescribing patterns, which could help guide implementation science work to better align practices with evidence and guidelines.”

For the study, which appeared online on March 1, Dr. Barbieri and colleague David J. Margolis, MD, PhD, professor of dermatology and epidemiology at the University of Pennsylvania, evaluated all clinical encounters associated with an ICD-9 or ICD-10 code for acne that occurred in the university’s departments of dermatology and internal medicine between Jan. 1, 2011, and Dec. 31, 2019. They used a machine-learning method known as k-means clustering to cluster clinicians based on their relative use of acne medications, as well as the ratio of spironolactone versus tetracycline use among female patients and stratified their analyses by specialty.

Of the 116 dermatologists included in the analysis, the researchers identified three clusters. The first cluster included 17 dermatologists (14.7%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and low use of spironolactone, compared with oral antibiotics, among women with acne. Physicians in this cluster were more likely to be male and to have more years in practice.

The second cluster included 46 dermatologists (39.6%) and was marked by high use of spironolactone and low use of isotretinoin. The third cluster included 53 dermatologists (45.7%) and was characterized by high use of topical retinoids and frequent use of systemic medications.

Of the 86 internists included in the study, the researchers identified three clusters. The first cluster included 39 internists (45.4%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and limited use of spironolactone. The second cluster included 34 internists (39.5%) and was marked by low use of topical retinoids and systemic medications. The third cluster included 13 clinicians (15.1%), most of whom were nurse practitioners, physician assistants, and other advanced practice providers. This cluster was characterized by high use of topical retinoids and relatively high use of spironolactone.

“There are likely opportunities to improve the use of topical retinoids by internists caring for patients with acne, since these are a first-line treatment option that may be underutilized by internists,” Dr. Barbieri said in the interview. “Future work is needed to identify underlying factors associated with different prescribing phenotypes among both dermatologists and internists. By understanding these factors, we can develop implementation science efforts to align prescribing behavior with best practices based on the guidelines and available evidence.”

He acknowledged certain limitations of the analysis, including its single-center design and the lack of data on patient characteristics. “Future studies are needed to examine whether our results generalize to other settings,” he said.

Dr. Barbieri disclosed that he receives partial salary support through a Pfizer Fellowship in Dermatology Patient Oriented Research grant to the Trustees of the University of Pennsylvania. The authors had no other disclosures.

[email protected]

An exploratory analysis recently published in the Journal of the American Academy of Dermatology examines whether it is possible to classify dermatologists and internists into different patterns of prescribing behavior for patients with acne.

“Prior research has highlighted that prescribing for acne may not be aligned with guideline recommendations, including the overuse of oral antibiotics and lack of use of concomitant topical medications such as topical retinoids,” the study’s corresponding author, John S. Barbieri, MD, MBA, of the department of dermatology at the University of Pennsylvania, Philadelphia, said in an interview.

“In addition, there is substantial variation in prescribing practices among clinicians. We were interested in examining whether it is possible to identify different prescribing phenotypes among dermatologists and internists who care for patients with acne. By identifying such groups, it would facilitate future qualitative interviews to understand factors that might contribute to clinicians having certain prescribing patterns, which could help guide implementation science work to better align practices with evidence and guidelines.”

For the study, which appeared online on March 1, Dr. Barbieri and colleague David J. Margolis, MD, PhD, professor of dermatology and epidemiology at the University of Pennsylvania, evaluated all clinical encounters associated with an ICD-9 or ICD-10 code for acne that occurred in the university’s departments of dermatology and internal medicine between Jan. 1, 2011, and Dec. 31, 2019. They used a machine-learning method known as k-means clustering to cluster clinicians based on their relative use of acne medications, as well as the ratio of spironolactone versus tetracycline use among female patients and stratified their analyses by specialty.

Of the 116 dermatologists included in the analysis, the researchers identified three clusters. The first cluster included 17 dermatologists (14.7%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and low use of spironolactone, compared with oral antibiotics, among women with acne. Physicians in this cluster were more likely to be male and to have more years in practice.

The second cluster included 46 dermatologists (39.6%) and was marked by high use of spironolactone and low use of isotretinoin. The third cluster included 53 dermatologists (45.7%) and was characterized by high use of topical retinoids and frequent use of systemic medications.

Of the 86 internists included in the study, the researchers identified three clusters. The first cluster included 39 internists (45.4%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and limited use of spironolactone. The second cluster included 34 internists (39.5%) and was marked by low use of topical retinoids and systemic medications. The third cluster included 13 clinicians (15.1%), most of whom were nurse practitioners, physician assistants, and other advanced practice providers. This cluster was characterized by high use of topical retinoids and relatively high use of spironolactone.

“There are likely opportunities to improve the use of topical retinoids by internists caring for patients with acne, since these are a first-line treatment option that may be underutilized by internists,” Dr. Barbieri said in the interview. “Future work is needed to identify underlying factors associated with different prescribing phenotypes among both dermatologists and internists. By understanding these factors, we can develop implementation science efforts to align prescribing behavior with best practices based on the guidelines and available evidence.”

He acknowledged certain limitations of the analysis, including its single-center design and the lack of data on patient characteristics. “Future studies are needed to examine whether our results generalize to other settings,” he said.

Dr. Barbieri disclosed that he receives partial salary support through a Pfizer Fellowship in Dermatology Patient Oriented Research grant to the Trustees of the University of Pennsylvania. The authors had no other disclosures.

[email protected]

An exploratory analysis recently published in the Journal of the American Academy of Dermatology examines whether it is possible to classify dermatologists and internists into different patterns of prescribing behavior for patients with acne.

“Prior research has highlighted that prescribing for acne may not be aligned with guideline recommendations, including the overuse of oral antibiotics and lack of use of concomitant topical medications such as topical retinoids,” the study’s corresponding author, John S. Barbieri, MD, MBA, of the department of dermatology at the University of Pennsylvania, Philadelphia, said in an interview.

“In addition, there is substantial variation in prescribing practices among clinicians. We were interested in examining whether it is possible to identify different prescribing phenotypes among dermatologists and internists who care for patients with acne. By identifying such groups, it would facilitate future qualitative interviews to understand factors that might contribute to clinicians having certain prescribing patterns, which could help guide implementation science work to better align practices with evidence and guidelines.”

For the study, which appeared online on March 1, Dr. Barbieri and colleague David J. Margolis, MD, PhD, professor of dermatology and epidemiology at the University of Pennsylvania, evaluated all clinical encounters associated with an ICD-9 or ICD-10 code for acne that occurred in the university’s departments of dermatology and internal medicine between Jan. 1, 2011, and Dec. 31, 2019. They used a machine-learning method known as k-means clustering to cluster clinicians based on their relative use of acne medications, as well as the ratio of spironolactone versus tetracycline use among female patients and stratified their analyses by specialty.

Of the 116 dermatologists included in the analysis, the researchers identified three clusters. The first cluster included 17 dermatologists (14.7%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and low use of spironolactone, compared with oral antibiotics, among women with acne. Physicians in this cluster were more likely to be male and to have more years in practice.

The second cluster included 46 dermatologists (39.6%) and was marked by high use of spironolactone and low use of isotretinoin. The third cluster included 53 dermatologists (45.7%) and was characterized by high use of topical retinoids and frequent use of systemic medications.

Of the 86 internists included in the study, the researchers identified three clusters. The first cluster included 39 internists (45.4%) and was characterized by low use of topical retinoids, high use of oral tetracycline, and limited use of spironolactone. The second cluster included 34 internists (39.5%) and was marked by low use of topical retinoids and systemic medications. The third cluster included 13 clinicians (15.1%), most of whom were nurse practitioners, physician assistants, and other advanced practice providers. This cluster was characterized by high use of topical retinoids and relatively high use of spironolactone.

“There are likely opportunities to improve the use of topical retinoids by internists caring for patients with acne, since these are a first-line treatment option that may be underutilized by internists,” Dr. Barbieri said in the interview. “Future work is needed to identify underlying factors associated with different prescribing phenotypes among both dermatologists and internists. By understanding these factors, we can develop implementation science efforts to align prescribing behavior with best practices based on the guidelines and available evidence.”

He acknowledged certain limitations of the analysis, including its single-center design and the lack of data on patient characteristics. “Future studies are needed to examine whether our results generalize to other settings,” he said.

Dr. Barbieri disclosed that he receives partial salary support through a Pfizer Fellowship in Dermatology Patient Oriented Research grant to the Trustees of the University of Pennsylvania. The authors had no other disclosures.

[email protected]

Skin microbiome therapy to protect against Staphylococcus aureus in patients with atopic dermatitis (AD) proved safe in a phase 1 randomized clinical trial that also demonstrated “encouraging clinical and mechanistic results,” Richard L. Gallo, MD, PhD, and his coinvestigators have reported in Nature Medicine.

Findings from the 1-week, 54-patient trial of a topical formulation containing Staphylococcus hominis A9 (ShA9) offer evidence that the strain directly kills S. aureus, inhibits the production of S. aureus–generated toxins, and enables expansion of a healthy bacterial community, “allowing the rest of the microbiome to start to recover to normal,” Dr. Gallo, professor and chairman of the department of dermatology at the University of California, San Diego, said in an interview.

“And perhaps most exciting,” Dr. Gallo added, is the finding that the subset of patients with AD who were most responsive to the ShA9 compound – approximately two-thirds of the participants who were randomized to receive it – showed improvement in local EASI (Eczema Area and Severity Index) and SCORAD (Scoring Atopic Dermatitis) scores used to assess inflammation. Plans are underway for a larger and longer trial, he said.

S. aureus commonly colonizes patients with AD and exacerbates disease by causing inflammation. In recent years, Dr. Gallo and other investigators have come to believe that AD is a cyclic disease in which the skin’s microbiome affects the host, and the host affects the microbiome. The goal of bacteriotherapy is to break the cycle of S. aureus colonization and improve the skin immune and barrier dysfunction characteristics of AD, Dr. Gallo said.

ShA9, a bacterium isolated from healthy human skin, was chosen as a potential topical therapy for AD based on its capacity both to selectively kill S. aureus and to inhibit toxin production by S. aureus. Dr. Gallo’s team’s preclinical work involved screening thousands of isolates of coagulase-negative staphylococci for gene products that perform these two functions by expressing both antimicrobial peptides (AMPs) and autoinducing peptides (AIPs), the latter of which inhibit the S. aureus quorum-sending system that leads to toxin production. Most patients with AD lack protective strains of coagulase-negative staphylococci, including S. hominis, prior research has found.

The double-blind phase 1 trial randomized 54 adults with moderate-severe AD affecting the ventral forearms in a 2:1 fashion to receive the proprietary lyophilized preparation of ShA9 or an ShA9-free formulation twice daily for 1 week. All participants were culture positive for S. aureus.

Clinical assessments and skin swabs were obtained before and within an hour after the first application of day 1, and swabs were collected on days 4 and 7 within 4 hours of the first application.

Blinded physician assessments and skin swabs were also obtained at 24, 48, and 96 hours after the final dose on day 7.

Based on structured daily diaries, there were no serious adverse events, and significantly fewer adverse events in those treated with ShA9, compared with the vehicle alone; 55.6% versus 83.3%, respectively, were considered to have adverse events.

The adverse event–reporting system captured the normal fluctuation of eczema and considered any report of fluctuation above baseline to be an adverse event. “Patients treated with the [placebo formulation] had the expected high frequency of itching, burning, and pain that you see with AD but it was encouraging that the frequency of reporting these events was significantly less in those treated with the active [formulation],” Dr. Gallo said in the interview.

Their report describes a decrease in S. aureus in participants treated with ShA9, and increases in ShA9 DNA. Not all S. aureus strains were directly killed by ShA9, but all strains had reduced expression of mRNA for psm-alpha, an important virulence factor. That reduced expression correlated with ShA9 AIPs and improved EASI scores, the latter of which was observed in a post-hoc analysis. “Participants with S. aureus not killed by ShA9 were still sensitive to inhibition of toxin production, a mechanistic outcome that predicted clinical improvement in mice and may require longer therapy to observe clinical improvement in humans,” the investigators wrote.

Local eczema severity was not significantly different between the bacteriotherapy and control groups. But the post-hoc analysis showed that after 7 days of treatment, and up to 4 days after treatment was discontinued, the patients with S. aureus that was sensitive to killing by ShA9 (21 out of 35 total who received the bacteriotherapy) showed improvement in EASI and SCORAD scores, compared with control patients.

Future research will assess the compound in both S. aureus culture-positive and culture-negative patients, and in patients with mild disease, Dr. Gallo said.

The trial was conducted at USCD and the National Jewish Health General Clinical Research Center in Denver, and was sponsored by the National Institute of Allergy and Infectious Diseases. The ShA9 formulation and related technology are licensed to MatriSys Bioscience, of which Dr. Gallo is the cofounder and an advisory board member. Dr. Gallo holds equity interest in the company.

Skin microbiome therapy to protect against Staphylococcus aureus in patients with atopic dermatitis (AD) proved safe in a phase 1 randomized clinical trial that also demonstrated “encouraging clinical and mechanistic results,” Richard L. Gallo, MD, PhD, and his coinvestigators have reported in Nature Medicine.

Findings from the 1-week, 54-patient trial of a topical formulation containing Staphylococcus hominis A9 (ShA9) offer evidence that the strain directly kills S. aureus, inhibits the production of S. aureus–generated toxins, and enables expansion of a healthy bacterial community, “allowing the rest of the microbiome to start to recover to normal,” Dr. Gallo, professor and chairman of the department of dermatology at the University of California, San Diego, said in an interview.

“And perhaps most exciting,” Dr. Gallo added, is the finding that the subset of patients with AD who were most responsive to the ShA9 compound – approximately two-thirds of the participants who were randomized to receive it – showed improvement in local EASI (Eczema Area and Severity Index) and SCORAD (Scoring Atopic Dermatitis) scores used to assess inflammation. Plans are underway for a larger and longer trial, he said.

S. aureus commonly colonizes patients with AD and exacerbates disease by causing inflammation. In recent years, Dr. Gallo and other investigators have come to believe that AD is a cyclic disease in which the skin’s microbiome affects the host, and the host affects the microbiome. The goal of bacteriotherapy is to break the cycle of S. aureus colonization and improve the skin immune and barrier dysfunction characteristics of AD, Dr. Gallo said.

ShA9, a bacterium isolated from healthy human skin, was chosen as a potential topical therapy for AD based on its capacity both to selectively kill S. aureus and to inhibit toxin production by S. aureus. Dr. Gallo’s team’s preclinical work involved screening thousands of isolates of coagulase-negative staphylococci for gene products that perform these two functions by expressing both antimicrobial peptides (AMPs) and autoinducing peptides (AIPs), the latter of which inhibit the S. aureus quorum-sending system that leads to toxin production. Most patients with AD lack protective strains of coagulase-negative staphylococci, including S. hominis, prior research has found.

The double-blind phase 1 trial randomized 54 adults with moderate-severe AD affecting the ventral forearms in a 2:1 fashion to receive the proprietary lyophilized preparation of ShA9 or an ShA9-free formulation twice daily for 1 week. All participants were culture positive for S. aureus.

Clinical assessments and skin swabs were obtained before and within an hour after the first application of day 1, and swabs were collected on days 4 and 7 within 4 hours of the first application.

Blinded physician assessments and skin swabs were also obtained at 24, 48, and 96 hours after the final dose on day 7.

Based on structured daily diaries, there were no serious adverse events, and significantly fewer adverse events in those treated with ShA9, compared with the vehicle alone; 55.6% versus 83.3%, respectively, were considered to have adverse events.

The adverse event–reporting system captured the normal fluctuation of eczema and considered any report of fluctuation above baseline to be an adverse event. “Patients treated with the [placebo formulation] had the expected high frequency of itching, burning, and pain that you see with AD but it was encouraging that the frequency of reporting these events was significantly less in those treated with the active [formulation],” Dr. Gallo said in the interview.

Their report describes a decrease in S. aureus in participants treated with ShA9, and increases in ShA9 DNA. Not all S. aureus strains were directly killed by ShA9, but all strains had reduced expression of mRNA for psm-alpha, an important virulence factor. That reduced expression correlated with ShA9 AIPs and improved EASI scores, the latter of which was observed in a post-hoc analysis. “Participants with S. aureus not killed by ShA9 were still sensitive to inhibition of toxin production, a mechanistic outcome that predicted clinical improvement in mice and may require longer therapy to observe clinical improvement in humans,” the investigators wrote.

Local eczema severity was not significantly different between the bacteriotherapy and control groups. But the post-hoc analysis showed that after 7 days of treatment, and up to 4 days after treatment was discontinued, the patients with S. aureus that was sensitive to killing by ShA9 (21 out of 35 total who received the bacteriotherapy) showed improvement in EASI and SCORAD scores, compared with control patients.

Future research will assess the compound in both S. aureus culture-positive and culture-negative patients, and in patients with mild disease, Dr. Gallo said.

The trial was conducted at USCD and the National Jewish Health General Clinical Research Center in Denver, and was sponsored by the National Institute of Allergy and Infectious Diseases. The ShA9 formulation and related technology are licensed to MatriSys Bioscience, of which Dr. Gallo is the cofounder and an advisory board member. Dr. Gallo holds equity interest in the company.

Skin microbiome therapy to protect against Staphylococcus aureus in patients with atopic dermatitis (AD) proved safe in a phase 1 randomized clinical trial that also demonstrated “encouraging clinical and mechanistic results,” Richard L. Gallo, MD, PhD, and his coinvestigators have reported in Nature Medicine.

Findings from the 1-week, 54-patient trial of a topical formulation containing Staphylococcus hominis A9 (ShA9) offer evidence that the strain directly kills S. aureus, inhibits the production of S. aureus–generated toxins, and enables expansion of a healthy bacterial community, “allowing the rest of the microbiome to start to recover to normal,” Dr. Gallo, professor and chairman of the department of dermatology at the University of California, San Diego, said in an interview.

“And perhaps most exciting,” Dr. Gallo added, is the finding that the subset of patients with AD who were most responsive to the ShA9 compound – approximately two-thirds of the participants who were randomized to receive it – showed improvement in local EASI (Eczema Area and Severity Index) and SCORAD (Scoring Atopic Dermatitis) scores used to assess inflammation. Plans are underway for a larger and longer trial, he said.

S. aureus commonly colonizes patients with AD and exacerbates disease by causing inflammation. In recent years, Dr. Gallo and other investigators have come to believe that AD is a cyclic disease in which the skin’s microbiome affects the host, and the host affects the microbiome. The goal of bacteriotherapy is to break the cycle of S. aureus colonization and improve the skin immune and barrier dysfunction characteristics of AD, Dr. Gallo said.

ShA9, a bacterium isolated from healthy human skin, was chosen as a potential topical therapy for AD based on its capacity both to selectively kill S. aureus and to inhibit toxin production by S. aureus. Dr. Gallo’s team’s preclinical work involved screening thousands of isolates of coagulase-negative staphylococci for gene products that perform these two functions by expressing both antimicrobial peptides (AMPs) and autoinducing peptides (AIPs), the latter of which inhibit the S. aureus quorum-sending system that leads to toxin production. Most patients with AD lack protective strains of coagulase-negative staphylococci, including S. hominis, prior research has found.

The double-blind phase 1 trial randomized 54 adults with moderate-severe AD affecting the ventral forearms in a 2:1 fashion to receive the proprietary lyophilized preparation of ShA9 or an ShA9-free formulation twice daily for 1 week. All participants were culture positive for S. aureus.

Clinical assessments and skin swabs were obtained before and within an hour after the first application of day 1, and swabs were collected on days 4 and 7 within 4 hours of the first application.

Blinded physician assessments and skin swabs were also obtained at 24, 48, and 96 hours after the final dose on day 7.

Based on structured daily diaries, there were no serious adverse events, and significantly fewer adverse events in those treated with ShA9, compared with the vehicle alone; 55.6% versus 83.3%, respectively, were considered to have adverse events.

The adverse event–reporting system captured the normal fluctuation of eczema and considered any report of fluctuation above baseline to be an adverse event. “Patients treated with the [placebo formulation] had the expected high frequency of itching, burning, and pain that you see with AD but it was encouraging that the frequency of reporting these events was significantly less in those treated with the active [formulation],” Dr. Gallo said in the interview.

Their report describes a decrease in S. aureus in participants treated with ShA9, and increases in ShA9 DNA. Not all S. aureus strains were directly killed by ShA9, but all strains had reduced expression of mRNA for psm-alpha, an important virulence factor. That reduced expression correlated with ShA9 AIPs and improved EASI scores, the latter of which was observed in a post-hoc analysis. “Participants with S. aureus not killed by ShA9 were still sensitive to inhibition of toxin production, a mechanistic outcome that predicted clinical improvement in mice and may require longer therapy to observe clinical improvement in humans,” the investigators wrote.

Local eczema severity was not significantly different between the bacteriotherapy and control groups. But the post-hoc analysis showed that after 7 days of treatment, and up to 4 days after treatment was discontinued, the patients with S. aureus that was sensitive to killing by ShA9 (21 out of 35 total who received the bacteriotherapy) showed improvement in EASI and SCORAD scores, compared with control patients.

Future research will assess the compound in both S. aureus culture-positive and culture-negative patients, and in patients with mild disease, Dr. Gallo said.

The trial was conducted at USCD and the National Jewish Health General Clinical Research Center in Denver, and was sponsored by the National Institute of Allergy and Infectious Diseases. The ShA9 formulation and related technology are licensed to MatriSys Bioscience, of which Dr. Gallo is the cofounder and an advisory board member. Dr. Gallo holds equity interest in the company.

Children with atopic dermatitis (AD) face a significantly greater risk of chronic school absenteeism compared with their peers with psoriasis and without AD or psoriasis.

In addition, parents of children with AD have significantly increased absenteeism from work compared with parents of children without AD.

Those are among key findings from a cross-sectional analysis of data from the Medical Expenditure Panel Surveys (MEPS), reported by Brian T. Cheng and Jonathan I. Silverberg, MD, PhD, MPH. The results were published online March 1 in the Journal of the American Academy of Dermatology.

“Atopic dermatitis is a debilitating disease that profoundly impacts children and their ability to attend school,” the study’s senior author, Dr. Silverberg, director of clinical research in the department of dermatology at George Washington University, Washington, said in an interview. “This is clinically relevant because school absenteeism is a sign of poorly controlled disease and should prompt clinicians to step up their game and aim for tighter control of the child’s atopic dermatitis.”

In an effort to determine the burden and predictors of chronic school absenteeism in children with AD, Mr. Cheng, a medical student at Northwestern University, Chicago, and Dr. Silverberg conducted a cross-sectional retrospective analysis of 124,267 children, adolescents, and young adults between the ages of 3 and 22 years from the 2000-2015 MEPS, which are representative surveys of the U.S. noninstitutionalized population conducted by the Agency for Healthcare Research and Quality. They used ICD-9 codes to determine a diagnosis of AD, psoriasis, and comorbidities; the primary outcome was chronic school absenteeism, defined as missing 15 or more days per year in the United States. MEPS also recorded the number of workdays that parents missed to care for their children or a relative.

The 124,267 individuals evaluated ranged in age between 3 and 22 years. Of these, 3,132 had AD and 200 had psoriasis. In the full cohort, chronic school absenteeism was higher among females, younger children, and those with lower household incomes, and public insurance.

Among children with AD, and those with psoriasis, 68% and 63% missed one or more day of school due to illness, respectively, while 4% in each group missed 15 days or more. Logistic regression analysis revealed that AD was associated with chronic absenteeism overall (adjusted odds ratio, 1.42), and with more severe disease (aOR, 1.33 for mild to moderate disease; aOR, 2.00 for severe disease).

On the other hand, the researchers did not observe any statistical difference in chronic absenteeism among children with versus those without psoriasis (aOR, 1.26).

The researchers also found that parents of children with versus parents of children without AD had a higher prevalence of absenteeism from work (an aOR of 1.28 among fathers, P = .009; and an aOR of 1.24 among mothers, P = .003).

In other findings, chronic absenteeism among children with AD was associated with poor/near poor/low income (aOR, 4.61) and comorbid disease (aOR, 3.35 for depression and aOR, 3.83 for asthma).

The investigators recommend that clinicians screen for and aim to reduce school absenteeism and parental work absenteeism in children with AD.

“I typically ask ‘Has (child’s name) missed any school because of their eczema?’ and follow-up with ‘What about from asthma or allergies?’ ” Dr. Silverberg said. “If the parent’s answer is yes to the first question, then I follow-up with more open-ended probing questions to understand why. Is it from all the doctor visits? Not sleeping well? Severe itch or pain? Poor sleep? Feeling sad or depressed? An answer of yes to each of these would prompt a potentially different treatment decision.”

The study received financial support from the Dermatology Foundation. The authors reported having no financial disclosures.

[email protected]

Children with atopic dermatitis (AD) face a significantly greater risk of chronic school absenteeism compared with their peers with psoriasis and without AD or psoriasis.

In addition, parents of children with AD have significantly increased absenteeism from work compared with parents of children without AD.

Those are among key findings from a cross-sectional analysis of data from the Medical Expenditure Panel Surveys (MEPS), reported by Brian T. Cheng and Jonathan I. Silverberg, MD, PhD, MPH. The results were published online March 1 in the Journal of the American Academy of Dermatology.

“Atopic dermatitis is a debilitating disease that profoundly impacts children and their ability to attend school,” the study’s senior author, Dr. Silverberg, director of clinical research in the department of dermatology at George Washington University, Washington, said in an interview. “This is clinically relevant because school absenteeism is a sign of poorly controlled disease and should prompt clinicians to step up their game and aim for tighter control of the child’s atopic dermatitis.”

In an effort to determine the burden and predictors of chronic school absenteeism in children with AD, Mr. Cheng, a medical student at Northwestern University, Chicago, and Dr. Silverberg conducted a cross-sectional retrospective analysis of 124,267 children, adolescents, and young adults between the ages of 3 and 22 years from the 2000-2015 MEPS, which are representative surveys of the U.S. noninstitutionalized population conducted by the Agency for Healthcare Research and Quality. They used ICD-9 codes to determine a diagnosis of AD, psoriasis, and comorbidities; the primary outcome was chronic school absenteeism, defined as missing 15 or more days per year in the United States. MEPS also recorded the number of workdays that parents missed to care for their children or a relative.

The 124,267 individuals evaluated ranged in age between 3 and 22 years. Of these, 3,132 had AD and 200 had psoriasis. In the full cohort, chronic school absenteeism was higher among females, younger children, and those with lower household incomes, and public insurance.

Among children with AD, and those with psoriasis, 68% and 63% missed one or more day of school due to illness, respectively, while 4% in each group missed 15 days or more. Logistic regression analysis revealed that AD was associated with chronic absenteeism overall (adjusted odds ratio, 1.42), and with more severe disease (aOR, 1.33 for mild to moderate disease; aOR, 2.00 for severe disease).

On the other hand, the researchers did not observe any statistical difference in chronic absenteeism among children with versus those without psoriasis (aOR, 1.26).

The researchers also found that parents of children with versus parents of children without AD had a higher prevalence of absenteeism from work (an aOR of 1.28 among fathers, P = .009; and an aOR of 1.24 among mothers, P = .003).

In other findings, chronic absenteeism among children with AD was associated with poor/near poor/low income (aOR, 4.61) and comorbid disease (aOR, 3.35 for depression and aOR, 3.83 for asthma).

The investigators recommend that clinicians screen for and aim to reduce school absenteeism and parental work absenteeism in children with AD.

“I typically ask ‘Has (child’s name) missed any school because of their eczema?’ and follow-up with ‘What about from asthma or allergies?’ ” Dr. Silverberg said. “If the parent’s answer is yes to the first question, then I follow-up with more open-ended probing questions to understand why. Is it from all the doctor visits? Not sleeping well? Severe itch or pain? Poor sleep? Feeling sad or depressed? An answer of yes to each of these would prompt a potentially different treatment decision.”

The study received financial support from the Dermatology Foundation. The authors reported having no financial disclosures.

[email protected]

Children with atopic dermatitis (AD) face a significantly greater risk of chronic school absenteeism compared with their peers with psoriasis and without AD or psoriasis.

In addition, parents of children with AD have significantly increased absenteeism from work compared with parents of children without AD.

Those are among key findings from a cross-sectional analysis of data from the Medical Expenditure Panel Surveys (MEPS), reported by Brian T. Cheng and Jonathan I. Silverberg, MD, PhD, MPH. The results were published online March 1 in the Journal of the American Academy of Dermatology.

“Atopic dermatitis is a debilitating disease that profoundly impacts children and their ability to attend school,” the study’s senior author, Dr. Silverberg, director of clinical research in the department of dermatology at George Washington University, Washington, said in an interview. “This is clinically relevant because school absenteeism is a sign of poorly controlled disease and should prompt clinicians to step up their game and aim for tighter control of the child’s atopic dermatitis.”

In an effort to determine the burden and predictors of chronic school absenteeism in children with AD, Mr. Cheng, a medical student at Northwestern University, Chicago, and Dr. Silverberg conducted a cross-sectional retrospective analysis of 124,267 children, adolescents, and young adults between the ages of 3 and 22 years from the 2000-2015 MEPS, which are representative surveys of the U.S. noninstitutionalized population conducted by the Agency for Healthcare Research and Quality. They used ICD-9 codes to determine a diagnosis of AD, psoriasis, and comorbidities; the primary outcome was chronic school absenteeism, defined as missing 15 or more days per year in the United States. MEPS also recorded the number of workdays that parents missed to care for their children or a relative.

The 124,267 individuals evaluated ranged in age between 3 and 22 years. Of these, 3,132 had AD and 200 had psoriasis. In the full cohort, chronic school absenteeism was higher among females, younger children, and those with lower household incomes, and public insurance.

Among children with AD, and those with psoriasis, 68% and 63% missed one or more day of school due to illness, respectively, while 4% in each group missed 15 days or more. Logistic regression analysis revealed that AD was associated with chronic absenteeism overall (adjusted odds ratio, 1.42), and with more severe disease (aOR, 1.33 for mild to moderate disease; aOR, 2.00 for severe disease).

On the other hand, the researchers did not observe any statistical difference in chronic absenteeism among children with versus those without psoriasis (aOR, 1.26).

The researchers also found that parents of children with versus parents of children without AD had a higher prevalence of absenteeism from work (an aOR of 1.28 among fathers, P = .009; and an aOR of 1.24 among mothers, P = .003).

In other findings, chronic absenteeism among children with AD was associated with poor/near poor/low income (aOR, 4.61) and comorbid disease (aOR, 3.35 for depression and aOR, 3.83 for asthma).

The investigators recommend that clinicians screen for and aim to reduce school absenteeism and parental work absenteeism in children with AD.

“I typically ask ‘Has (child’s name) missed any school because of their eczema?’ and follow-up with ‘What about from asthma or allergies?’ ” Dr. Silverberg said. “If the parent’s answer is yes to the first question, then I follow-up with more open-ended probing questions to understand why. Is it from all the doctor visits? Not sleeping well? Severe itch or pain? Poor sleep? Feeling sad or depressed? An answer of yes to each of these would prompt a potentially different treatment decision.”

The study received financial support from the Dermatology Foundation. The authors reported having no financial disclosures.

[email protected]