Four primary carcinomas of the large bowel in a young man.
D000230:Adenocarcinoma / Q000601:surgery; D000328:Adult; D006801:Humans; D007414:Intestinal Neoplasms / Q000601:surgery; D007420:Intestine, Large / Q000601:surgery; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000601:surgery