Erythema ab igne with features resembling keratosis lichenoides chronica. (5th November 2020)

• Record Type: Journal Article
• Authors: Wells, Amy; Desai, Anand; Rudnick, Eric W.; Motaparthi, Kiran
• Is Part Of: Journal of cutaneous pathology. Volume 48:Number 1(2021)
• Page Start: 151
• Page End: 153
• Publication Date: 2020-11-05
• Subjects: dermatopathology -- erythema ab igne -- keratosis lichenoides chronica -- lichenoid dermatitis; Skin -- Diseases -- Periodicals; Dermatology -- Periodicals; 616
• DOI: 10.1111/cup.13885
• Languages: English
• ISSNs: 0303-6987

Abstract

Abstract: Erythema ab igne (EAI) is an asymptomatic dermatosis that develops in response to chronic exposure to low‐grade heat. Characteristic findings on histopathology include epidermal atrophy, dermal elastosis, atypical histiocytes, and melanin and hemosiderin deposition. Reactive endothelial changes and prominent vascular proliferation are variable. Keratosis lichenoides chronica (KLC) is a rare lichenoid hyperkeratotic dermatosis. Acanthosis with parakeratosis and a lichenoid interface dermatitis with lymphocytes, histiocytes, and plasma cells are characteristic findings of KLC. Although its etiology remains unclear, KLC has been reported to occur in response to heat. Herein, we report a case of EAI with features resembling KLC.