Ischaemic colitis.
D000368:Aged; D003092:Colitis / Q000209:etiology*; D003106:Colon / Q000098:blood supply* / Q000000981:diagnostic imaging; D005734:Gangrene / Q000209:etiology; D006801:Humans; D007511:Ischemia; D008297:Male; D008875:Middle Aged; D011859:Radiography