Carcinoma of the rectum in male homosexuals.
Two male homosexuals with carcinomata of the rectum with transitional cell changes are reported, and the possible aetiology of these lesions is discussed.
D000230:Adenocarcinoma / Q000209:etiology*; D000328:Adult; D002295:Carcinoma, Transitional Cell / Q000209:etiology*; D006716:Homosexuality; D006801:Humans; D008297:Male; D012004:Rectal Neoplasms / Q000209:etiology*