Angiodysplasia of the colon.
D003106:Colon / Q000098:blood supply*; D003108:Colonic Diseases / Q000473:pathology*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D014652:Vascular Diseases / Q000150:complications / Q000473:pathology*