title: [Is it a birthmark?].
authors.forename: Michael
authors.initials: M
authors.lastname: Obladen
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009506:Nevus / Q000175:diagnosis; D009558:Nipples / Q000002:abnormalities*; D012868:Skin Abnormalities / Q000175:diagnosis; D012878:Skin Neoplasms / Q000175:diagnosis