Basal cell carcinoma of the nipple.
D000368:Aged; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000473:pathology*; D002280:Basal Cell Carcinoma / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009558:Nipples / Q000473:pathology*