The author(s) indicated no potential conflicts of interest. Corresponding author: Jonathan Cotliar, MD, Department of Dermatology, Northwestern University Feinberg School of Medicine, 676 N St Clair, ...
A 4-mm punch biopsy was obtained from a representative lesion on the patient’s abdomen. Microscopic evaluation with hematoxylin and eosin staining revealed a normal-appearing epidermis and a ...