title: An unusual cause of severe hematochezia.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea.
authors.forename: In Kyung
authors.initials: IK
authors.lastname: Yoo
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea.
authors.forename: Hoon Jai
authors.initials: HJ
authors.lastname: Chun
authors.affiliation: Department of Pathology, Korea University Anam Hospital, Seoul, Korea.
authors.forename: Chul Hwan
authors.initials: CH
authors.lastname: Kim
mesh_terms: D000369:Aged, 80 and over; D003082:Colectomy; D003110:Colonic Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003111:Colonic Polyps / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003113:Colonoscopy; D003937:Diagnosis, Differential; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D011237:Predictive Value of Tests; D012720:Severity of Illness Index