• Esther E Freeman, Devon E McMahon, Jules B Lipoff, Misha Rosenbach, Carrie Kovarik, Junko Takeshita, Lars E French, Bruce H Thiers, George J Hruza, Lindy P Fox, and American Academy of Dermatology Ad Hoc Task Force on COVID-19.
• Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Medical Practice Evaluation Center, Mongan Institute, Massachusetts General Hospital, Boston, Massachusetts. Electronic address: efreeman@mgh.harvard.edu.
• J. Am. Acad. Dermatol. 2020 Aug 1; 83 (2): 486-492.

BackgroundIncreasing evidence suggests pernio-like lesions are cutaneous manifestations of coronavirus infectious disease 2019 (COVID-19).ObjectiveTo describe clinical and pathologic findings of pernio-like lesions in patients with confirmed or suspected COVID-19.MethodsAn international dermatology registry was circulated to health care providers worldwide through the American Academy of Dermatology, International League of Dermatologic Societies, and other organizations.ResultsWe documented 505 patients with dermatologic manifestations associated with COVID-19, including 318 (63%) with pernio-like lesions. Patients with pernio-like lesions were generally young and healthy, with relatively mild COVID-19. Of 318 patients with confirmed or suspected COVID-19 by providers, 23 (7%) were laboratory-confirmed COVID-19 positive, and 20 others (6%) were close contacts of patients with confirmed COVID-19. Given current testing criteria, many patients lacked COVID-19 testing access. For 55% of patients, pernio-like lesions were their only symptom. In patients with other COVID-19 symptoms, pernio-like lesions typically appeared after other symptoms. Pernio-like lesions lasted a median of 14 days (interquartile range, 10-21 days).LimitationsA case series cannot estimate population-level incidence or prevalence. In addition, there may be confirmation bias in reporting. We cannot exclude an epiphenomenon.ConclusionsPernio-like skin changes of the feet and hands, without another explanation, may suggest COVID-19 infection and should prompt confirmatory testing.Copyright © 2020 American Academy of Dermatology, Inc. Published by Elsevier Inc. All rights reserved.

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