title: Discrete ulcerations of the rectum and sigmoid.
mesh_terms: D001027:Aortography; D001167:Arteritis / Q000473:pathology; D012809:Colon, Sigmoid / Q000473:pathology*; D003108:Colonic Diseases / Q000175:diagnosis / Q000209:etiology / Q000473:pathology*; D003424:Crohn Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D004211:Disseminated Intravascular Coagulation / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008638:Mesenteric Arteries / Q000000981:diagnostic imaging; D008875:Middle Aged; D011127:Polyps / Q000150:complications; D011349:Proctitis / Q000150:complications; D012002:Rectal Diseases / Q000175:diagnosis / Q000209:etiology / Q000473:pathology*; D012004:Rectal Neoplasms / Q000175:diagnosis; D012811:Sigmoid Neoplasms / Q000175:diagnosis; D014456:Ulcer; D014594:Uterine Neoplasms / Q000150:complications; D008061:Whipple Disease / Q000150:complications