Severe reactive infectious mucocutaneous eruption mimicking drug-induced epidermal necrolysis triggered by norovirus.

Reactive infectious mucocutaneous eruption (RIME) is an eruptive mucositis with varying degrees of cutaneous involvement presumed to be due to an immunologic response to various infectious pathogens. Most reported cases occur after a prodromal upper respiratory illness. We present a patient with a particularly severe case mimicking drug-induced epidermal necrolysis found to be triggered by asymptomatic norovirus infection, a virus not previously reported in association with RIME.

The management of pediatric hidradenitis suppurativa differs between dermatologic and non-dermatologic providers: A retrospective review.

BACKGROUND/OBJECTIVES: There is a paucity of pediatric hidradenitis suppurativa (HS) literature. The objective of this study was to characterize differences in management of pediatric HS patients by dermatology versus non-dermatology clinicians. METHODS: We examined a retrospective cohort of 195 pediatric patients with HS seen at our institution (3/1/19-3/1/20). Two-sample t-tests and two-proportion z-tests were performed. RESULTS: A total of 76.1% of subjects were seen by dermatology at least once, and of these, 79.1% were referred. HS diagnosis was most often made by dermatology (36.6%), followed by pediatrics (21.6%). Patients managed by dermatology were significantly more likely to have used standard of care therapies (p < .001). Of dermatology-managed patients, 19.7% were currently prescribed a biologic, as compared with zero patients not managed by dermatology. Those managed by dermatology were less likely to undergo surgical excision (13.3% vs. 25.5%, p = .04). CONCLUSIONS: Our results support increased likelihood of treatment escalation with medical management by dermatologists. Relatively high utilization of referral to dermatology exists, but with only moderate patient adherence. There is a need for improved access to dermatologic care and prospective studies to determine whether differences in specialty management translate to improved patient outcomes.

Congenital erosive and vesicular dermatosis healing with reticulated and supple scarring: Two cases secondary to fungal infection.

Congenital erosive and vesicular dermatosis (CEVD) is a rare skin condition that most commonly presents as erosive and vesicular lesions on the trunk and extremities in premature infants and heals with characteristic reticulated and supple scarring (RSS). The exact pathogenesis of CEVD is unknown and is typically a diagnosis of exclusion. We present the cases of two extremely premature neonates with Candida septicemia who were found to have diffuse, erythematous skin eruptions shortly after birth that ultimately healed with RSS. Through these cases, we highlight the importance of including fungal infection in the work-up of CEVD healing with RSS.

Current Practices in Pediatric Dermatology Laser Therapy: An International Survey.

BACKGROUND AND OBJECTIVES: To date, there are no well-established guidelines regarding laser therapy for the treatment of cutaneous lesions in pediatric patients. We aim to ascertain the types of lasers commonly used, types of lesions treated, and factors that affect the selection of specific laser modalities in pediatric patients. STUDY DESIGN/MATERIALS AND METHODS: An anonymous online survey was distributed to healthcare providers who treat children with lasers through listservs of four major national and international dermatology and laser organizations. RESULTS: Outpatient office-based procedure rooms are the most common clinical setting for laser procedures (74.4%), and pulsed dye laser is the most commonly used laser (95.4%). Conditions routinely treated with lasers included port wine stains (95.4%), infantile hemangiomas (81.5%), other vascular lesions (81.5%), scars (77.7%), and hair (60.8%). 84.4% of respondents expressed concern about general anesthesia in patients <2 years old. Nevi of Ota is treated with laser more frequently (52.3%) than other pigmented lesions. LIMITATIONS: Limited generalizability of case examples to general conditions. CONCLUSIONS: Vascular lesions are the most common lesions treated with lasers in pediatric dermatology patients, and most providers are using these devices in the outpatient setting. Many providers are concerned about the effects of repeated general anesthesia in infants, and there appears to be a trend toward providing laser therapy in the outpatient setting without general anesthesia. Lasers Surg. Med. © 2020 Wiley Periodicals LLC.

Neonatal lupus erythematosus presenting as orolabial ulcerations: Two cases and a review of the literature.

We report two unrelated infants who presented with orolabial ulcerations as a presenting manifestation of neonatal lupus erythematosus (NLE). Subsequent positive anti-SSA/SSB titers confirmed the diagnosis. In both infants, the ulcerations were painless and spontaneously resolved. NLE should be included in the differential diagnosis of orolabial ulcerations in the newborn, especially since mothers of affected infants may be asymptomatic.

Complete resolution of primary cutaneous marginal zone B-cell lymphoma on the cheek of a 7-year-old boy with intralesional triamcinolone and tincture of time.

A 7-year-old healthy boy presented with an asymptomatic smooth, firm red plaque on the cheek. Histopathology, immunostaining, molecular testing and imaging confirmed a diagnosis of a primary cutaneous marginal zone B-cell lymphoma. The lesion was treated with intralesional triamcinolone, with complete clinical resolution achieved within one year. Intralesional steroid injection is an effective first-line modality for the treatment of patients with limited disease in cosmetically sensitive areas.

Evolution of congenital melanocytic nevi toward benignity: A case series.

We report on four children born with medium to large congenital melanocytic nevi (CMN) with color heterogeneity and irregular surface rugosity. As these patients aged, their nevi evolved to become more homogeneous and lighter in color, and developed a smoother, more even texture. We propose that given this evolution toward benignity, conservative monitoring and management may be appropriate even in the context of atypical-appearing features at birth. Such knowledge regarding the evolution of these CMN can more accurately guide parents and clinicians in determining whether to biopsy or remove an atypical-looking lesion early in life for medical or cosmetic reasons.

Allergic Contact Dermatitis Due to Methylisothiazolinone in a Young Girl's Laundry Detergent.

Methylisothiazolinone (MI) is an emerging and increasing cause of allergic contact dermatitis (ACD) in children. We present the case of a 7-year-old girl with an unusual dermatitis suspicious for contact allergy. Patch testing confirmed allergy to MI, found only in the patient's laundry detergent. This case highlights the importance of checking household product ingredients and the role of MI as an increasing cause of ACD in children.

"Mint" Condition: Contact Dermatitis in an Adolescent Numismatist.

Allergic contact dermatitis (ACD) is common in children and adolescents. A history of persistent rash despite appropriate treatment should raise suspicion of ACD. We present the case of a 16-year-old boy with chronic dermatitis suspected of being a possible nickel allergy. He and his mother denied known common exposures. Patch testing confirmed allergies to multiple metals and several preservatives. A detailed social history revealed that the patient was an avid coin collector. Information about hobbies and activities should be elicited in any patient in whom ACD is suspected to determine exposures they may not initially have considered relevant. This case highlights the importance of pre- and posttest counseling and exposure history.

Is there an association between NPY and neuroticism?

Psychiatric genetics has been hampered by the fact that initially exciting findings from underpowered studies are so often not replicated in larger, more powerful, data sets. Here we show that the claims of Zhou et al. that neuropeptide Y (NPY) diplotype-predicted expression is correlated with trait anxiety (neuroticism) is not replicated in a data set consisting of phenotypically extreme individuals drawn from a large (n = 88,142) non-clinical population. We found no association between NPY diplotype or diplotype-predicted expression and neuroticism. Our reply to Zhou and colleagues forms part of a larger debate (see, for example, http://www.nature.com/news/2008/080709/full/454154a.html) about the efficacy and replicability of candidate driven versus genome wide approaches to psychiatric genetics.

Congenital Cutaneous Candidiasis in Preterm Infants.

Congenital cutaneous candidiasis (CCC) is a rare condition, which typically affects premature and very low birthweight neonates. Affected infants present with a diffuse rash of variable morphology, which can appear as peeling, sloughing desquamation; maculopapular lesions; or, less commonly, pustules, vesicles, or bullae. Due to the varied nature of the clinical presentation, the diagnosis of CCC can be quite difficult but critically important because early treatment with intravenous fluconazole can prevent disease progression. In this review, we summarize the epidemiology, pathogenesis, clinical presentation, evaluation, and management of CCC.

Hidradenitis Suppurativa in Pediatric Patients.

Hidradenitis suppurativa is a chronic inflammatory skin disorder primarily affecting apocrine gland-bearing areas, including the axillae, groin, and buttocks. It is reported in up to 2% of Western populations and with increasing incidence in children and adults. Nearly one-third of hidradenitis suppurativa cases occur in pediatric patients and nearly half of patients endorse initial symptoms in childhood. To date, there are few clinical studies and guidelines for pediatric hidradenitis suppurativa. Here, we review the epidemiology, clinical presentation, comorbidities, and management of pediatric hidradenitis suppurativa. We discuss barriers contributing to delays in diagnosis and the significant physical and emotional impact of the disease on children and adolescents.

Diagnosis and Management of Pediatric Chronic Hand Eczema: The PeDRA CACHES Survey.

BACKGROUND: Chronic hand eczema (CHE) significantly impacts quality of life. Published literature on pediatric CHE (P-CHE) in North America including knowledge on epidemiology and standard evaluation and management is limited. OBJECTIVE: Our objective was to assess diagnostic practices when evaluating patients with P-CHE in the US and Canada, produce data on therapeutic agent prescribing practices for the disorder, and lay the foundation for future studies. METHODS: We surveyed pediatric dermatologists to collect data on clinician and patient population demographics, diagnostic methods, therapeutic agent selection, among other statistics. From June 2021 to January 2022, a survey was distributed to members of the Pediatric Dermatology Research Alliance (PeDRA). RESULTS: Fifty PeDRA members responded stating that they would be interested in participating, and 21 surveys were completed. For patients with P-CHE, providers most often utilize the diagnoses of irritant contact dermatitis, allergic contact dermatitis, dyshidrotic hand eczema, and atopic dermatitis. Contact allergy patch testing and bacterial hand culture are the most used tests for workup. Nearly all utilize topical corticosteroids as first line therapy. Most responders report that they have treated fewer than six patients with systemic agents and prefer dupilumab as first-line systemic therapy. CONCLUSIONS: This is the first characterization of P-CHE among pediatric dermatologists in the United States and Canada. This assessment may prove useful in designing further investigations including prospective studies of P-CHE epidemiology, morphology, nomenclature, and management.

Hemangioma Genetics and Associated Syndromes.

This article explores what is known regarding infantile hemangioma (IH) genetics. Despite a great deal of research on this topic, the relationship between IH genetics and pathogenesis has yet to be understood. This article also outlines the appropriate work-up and management of syndromes associated with specific presentations of IH.