Crohn's disease of the rectum.
D000328:Adult; D000368:Aged; D003424:Crohn Disease / Q000628:therapy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000628:therapy; D012004:Rectal Neoplasms / Q000175:diagnosis