A Review of COVID-19 Chilblains-like Lesions and their Differential Diagnosis

Muskaan Sachdeva; Asfandyar Mufti; Khalad Maliyar; Irene Lara-Corrales; Richard Salcido; Cathryn Sibbald

doi:10.1097/01.ASW.0000737860.47789.3c

A Review of COVID-19 Chilblains-like Lesions and their Differential Diagnosis

Adv Skin Wound Care. 2021 Mar 12. doi: 10.1097/01.ASW.0000737860.47789.3c. Online ahead of print.

Authors

Muskaan Sachdeva¹, Asfandyar Mufti, Khalad Maliyar, Irene Lara-Corrales, Richard Salcido, Cathryn Sibbald

Affiliation

¹ Medical Student, Faculty of Medicine, University of Toronto, Ontario, Canada Dermatology Resident, Department of Dermatology, University of Toronto, Ontario, Canada Medical Student, Faculty of Medicine, University of Toronto, Ontario, Canada Pediatric Dermatologist, Section of Dermatology, Division of Pediatric Medicine, The Hospital for Sick Children, University of Toronto, Ontario, Canada Editor-in-Chief Emeritus, Advances in Skin & Wound Care; the William Erdman Professor, Department of Physical Medicine and Rehabilitation; Senior Fellow, Institute on Aging; and Associate, Institute of Medicine and Bioengineering, University of Pennsylvania Health System, Philadelphia, Pennsylvania Staff Physician, Section of Dermatology, Division of Pediatric Medicine, The Hospital for Sick Children, University of Toronto, Ontario, Canada.

PMID: 33797425
DOI: 10.1097/01.ASW.0000737860.47789.3c

Abstract

General purpose: Forthcoming.

Target audience: This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care.

Learning objectives/outcomes: Forthcoming.

Abstract: This review article focuses on the pathogenesis, clinical features, and diagnostic testing of the common pathologies that can manifest as chilblains-like lesions. These differentials include COVID toes, Raynaud phenomenon, acrocyanosis, critical limb ischemia, thromboangiitis obliterans, chilblains associated with lupus erythematosus, and idiopathic chilblains. The authors present a helpful mnemonic, ARCTIC, to assist clinicians in recognition and diagnosis.