Porokeratotic eccrine duct and hair follicle nevus.
D000328:Adult; D001132:Arm; D003937:Diagnosis, Differential; D006225:Hand; D006801:Humans; D007642:Keratosis / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D009506:Nevus / Q000175:diagnosis* / Q000473:pathology