Erythema ab igne in an individual with diabetes and gastroparesis

Amantadine-induced livedo racemosa

“…On the other hand, livedo reticularis is produced by vasospasm of cutaneous microvasculature. Close mimics of these two would be erythema ab igne (cutaneous marker of prolonged thermal exposure), reticulate erythematous mucinosis (preferentially involves mid-trunk and associated with systemic lupus erythematosus), viral exanthems (erythema infectiosum) and poikilodermatous conditions (dermatomyositis, mycosis fungoides) 2 3. Corroborative histopathology varies depending on the underlying cause.…”