Ulcerative colitis.
D000328:Adult; D003093:Colitis, Ulcerative / Q000175:diagnosis / Q000601:surgery / Q000628:therapy; D003106:Colon / Q000098:blood supply / Q000601:surgery; D003424:Crohn Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D007511:Ischemia / Q000175:diagnosis