J Cutan Pathol 2021 Oct 24;48(10):1298-1302. Epub 2021 Jun 24.
Section of Dermatology, Department of Internal Medicine Department of Basic Science Education, Virginia Tech Carilion School of Medicine and Carilion Clinic, Roanoke, Virginia, USA.
Erythema ab igne is an uncommon physical dermatosis that presents with localized patches of reticulated erythema and hyperpigmentation corresponding with the underlying dermal venous plexus. The rash occurs in response to chronic heat exposure that does not meet the threshold for thermal burn of the skin. The histopathologic findings are characterized by atrophy and thinning of the epidermis, focal hyperkeratosis, and keratinocyte atypia. Read More