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October 2021 - January 1920




April 2021, Vol 157, No. 4, Pages 375-469


Recognizing the Effects and Disparities of Pediatric Hidradenitis Suppurativa

Abstract Full Text
JAMA Dermatol. 2021;157(4):379-380. doi:10.1001/jamadermatol.2020.5434

Importance of Standardized Nomenclature to Advance Hidradenitis Suppurativa Research and Clinical Care

Abstract Full Text
JAMA Dermatol. 2021;157(4):381-383. doi:10.1001/jamadermatol.2020.5466

Stigmatizing Alopecia—Perspectives of a Bald Dermatologist

Abstract Full Text
JAMA Dermatol. 2021;157(4):383-384. doi:10.1001/jamadermatol.2020.5731
Original Investigation

Hidradenitis Suppurativa in the Pediatric Population: An International, Multicenter, Retrospective, Cross-sectional Study of 481 Pediatric Patients

Abstract Full Text
JAMA Dermatol. 2021;157(4):385-391. doi:10.1001/jamadermatol.2020.5435

This cross-sectional study examines the demographics, clinical features, treatment, associated comorbidities, and outcomes in a large cohort of pediatric patients with hidradenitis suppurativa.

Evaluation of Stigma Toward Individuals With Alopecia

Abstract Full Text
JAMA Dermatol. 2021;157(4):392-398. doi:10.1001/jamadermatol.2020.5732

This cross-sectional study assesses the prevalence and magnitude of layperson stigma toward individuals with varying degrees of alopecia.

An Evaluation of the Performance of Current Morphea Subtype Classifications

Abstract Full Text
JAMA Dermatol. 2021;157(4):399-405. doi:10.1001/jamadermatol.2020.5809

This cross-sectional study uses data from 2 patient cohorts to evaluate how frequently the commonly used morphea classification systems categorize patients with morphea into clinically relevant subtypes.

Differences in Outpatient Dermatology Encounter Work Relative Value Units and Net Payments by Patient Race, Sex, and Age

Abstract Full Text
JAMA Dermatol. 2021;157(4):406-412. doi:10.1001/jamadermatol.2020.5823

This cross-sectional study examines the use of work relative value unit to calculate dermatologist productivity and compensation according to the demographic characteristics of patients.

Association of Patient Mental Health Status With the Level of Agreement Between Patient and Physician Ratings of Psoriasis Severity

Abstract Full Text
JAMA Dermatol. 2021;157(4):413-420. doi:10.1001/jamadermatol.2020.5844

This cohort study examines the ratings of physicians compared with the ratings of patients on the severity of psoriasis in patients with depression and anxiety.

Mixed Individual-Aggregate Data on All-Cause Mortality in Bullous Pemphigoid: A Meta-analysis

Abstract Full Text
JAMA Dermatol. 2021;157(4):421-430. doi:10.1001/jamadermatol.2020.5598

This meta-analysis estimates the 1-year standardized mortality ratio among patients with bullous pemphigoid.


Mycosis Fungoides in Children and Adolescents: A Systematic Review

Abstract Full Text
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JAMA Dermatol. 2021;157(4):431-438. doi:10.1001/jamadermatol.2021.0083

This systematic review assesses the clinical features, immunophenotypes, various treatment options, and prognosis of mycosis fungoides in children and adolescents.

Consensus Statement

A Global eDelphi Exercise to Identify Core Domains and Domain Items for the Development of a Global Registry of Alopecia Areata Disease Severity and Treatment Safety (GRASS)

Abstract Full Text
JAMA Dermatol. 2021;157(4):439-448. doi:10.1001/jamadermatol.2020.5839

This review seeks to reach international consensus regarding the core domains and data items required to build a network of patient registries to monitor real-world demographics and outcomes of alopecia areata.

Global Harmonization of Morphological Definitions in Hidradenitis Suppurativa for a Proposed Glossary

Abstract Full Text
JAMA Dermatol. 2021;157(4):449-455. doi:10.1001/jamadermatol.2020.5467

This consensus statement establishes and validates consensus definitions for typical morphological findings in hidradenitis suppurativa lesions.

Images in Dermatology

Koplik Spots

Abstract Full Text
JAMA Dermatol. 2021;157(4):456. doi:10.1001/jamadermatol.2020.4397

This case report describes multiple discrete 2- to 3-mm pinpoint yellow papules and blue-white spots with peripheral erythematous rings on the right side that were opposite the second molar.

Telangiectases in Systemic Sclerosis

Abstract Full Text
JAMA Dermatol. 2021;157(4):457. doi:10.1001/jamadermatol.2020.4831

This case report describes a woman in her 30s with puffy fingers, nailfold capillary changes, and abundant mat telangiectases scattered on the upper trunk, arms, and hands.

JAMA Dermatology Clinicopathological Challenge

Multiple, Tender Perianal Ulcers in a Young Woman

Abstract Full Text
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JAMA Dermatol. 2021;157(4):458-459. doi:10.1001/jamadermatol.2020.5764

A woman in her late 30s presents with a 4-day history of perianal pain. Her medical history includes systemic lupus erythematosus, antiphospholipid antibody syndrome, and external hemorrhoids, as well as a deceased donor kidney transplant 6 months earlier. Her laboratory test results were notable for elevated creatinine and thrombocytopenia, and 1 day later she developed diarrhea. Antigen and toxin testing for Clostridium difficile was positive. What is your diagnosis?

A “Turkey Ear” Persisting for 5 Decades

Abstract Full Text
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JAMA Dermatol. 2021;157(4):460-461. doi:10.1001/jamadermatol.2020.5832

A woman in her 50s presented with an edematous, massively enlarged right auricle; histopathologic evaluation revealed noncaseating granulomatous dermatitis. What is your diagnosis?

Research Letter

Skin Biopsy Equipment Availability Across 7 Low-Income Countries: A Cross-Sectional Study of 6053 Health Facilities

Abstract Full Text
JAMA Dermatol. 2021;157(4):462-464. doi:10.1001/jamadermatol.2020.5851

This cross-sectional study characterizes the availability of skin biopsy equipment in 7 low-income countries using nationally representative facility data.

Expert Knowledge, Attitudes, and Practices in Management of Hidradenitis Suppurativa Pain

Abstract Full Text
JAMA Dermatol. 2021;157(4):464-466. doi:10.1001/jamadermatol.2020.5857

This cross-sectional survey characterizes the knowledge, attitudes, and practices of international experts in the management of pain in patients with hidradenitis suppurativa.


Inhibition of Progression of Acrodermatitis Continua of Hallopeau With Baricitinib

Abstract Full Text
JAMA Dermatol. 2021;157(4):466-468. doi:10.1001/jamadermatol.2021.0045

This case report describes pustules beneath the fingernails that were accompanied by redness and swelling of distal interphalangeal joints.

Subcutaneous Fat Necrosis During Nivolumab Therapy for Metastatic Melanoma

Abstract Full Text
JAMA Dermatol. 2021;157(4):468-469. doi:10.1001/jamadermatol.2021.0058

This case report describes a 78-year-old woman with multiple subcutaneous nodules on her legs, left breast, and left arm that evolved into larger areas of lipoatrophy.

JAMA Dermatology Masthead

JAMA Dermatology

Abstract Full Text
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JAMA Dermatol. 2021;157(4):375. doi:10.1001/jamadermatol.2020.3872