Angiodysplasia of the colon.
D000368:Aged; D000792:Angiography; D003106:Colon / Q000098:blood supply*; D003113:Colonoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D014652:Vascular Diseases / Q000175:diagnosis / Q000209:etiology / Q000601:surgery