A mistake I made from which I learned much: melanoma in a preexisting congenital nevus of Unna's type.
Ackerman
A Bernard
AB
Ackerman Academy of Dermatopathology, New York City, USA.
D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008545:Melanoma / Q000150:complications* / Q000473:pathology*; D009506:Nevus / Q000150:complications* / Q000473:pathology*; D012878:Skin Neoplasms / Q000150:complications / Q000473:pathology