Paget's disease of the male breast.
D001706:Biopsy; D001943:Breast Neoplasms / Q000473:pathology*; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000473:pathology*; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012737:Sex Factors