[MASSIVE HEMORRHAGE FROM RECTAL POLYP].
D000293:Adolescent; D006471:Gastrointestinal Hemorrhage; D006470:Hemorrhage; D006801:Humans; D011127:Polyps; D012004:Rectal Neoplasms; D013514:Surgical Procedures, Operative
ADOLESCENCE; HEMORRHAGE, GASTROINTESTINAL; POLYPS; RECTAL NEOPLASMS; SURGERY, OPERATIVE