Perianal Paget's disease.
D000368:Aged; D001005:Anus Neoplasms / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D010145:Paget Disease, Extramammary / Q000473:pathology / Q000601:surgery; D010502:Perineum; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000601:surgery; D016038:Skin Transplantation