Crohn's disease.
D001706:Biopsy; D003106:Colon / Q000473:pathology; D003424:Crohn Disease / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D005334:Fever / Q000209:etiology; D006801:Humans; D007422:Intestines / Q000000981:diagnostic imaging; D011859:Radiography; D012007:Rectum / Q000473:pathology; D012812:Sigmoidoscopy