Perineal cloacogenic cyst.
D000328:Adult; D002988:Cloaca / Q000473:pathology*; D003560:Cysts / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008679:Metaplasia; D010502:Perineum / Q000473:pathology* / Q000601:surgery