Carcinoid tumours of the rectum.
D000328:Adult; D000368:Aged; D002276:Carcinoid Tumor / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology / Q000601:surgery