Massive large-bowel haemorrhage.
Operative intervention for massive colonic haemorrhage is fortunately rarely necessary, but planned, low-risk segmental resections can only be performed if the bleeding site is known. This information can most frequently be obtained by using a combination of sigmoidoscopy, barium enema examination, and selective mesenteric angiography.
D003108:Colonic Diseases / Q000209:etiology / Q000601:surgery*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology / Q000601:surgery*; D006801:Humans