Rectal diverticula.
D001466:Barium Sulfate; D004240:Diverticulum / Q000000981:diagnostic imaging*; D004241:Diverticulum, Colon / Q000150:complications; D004733:Enema; D006471:Gastrointestinal Hemorrhage / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012002:Rectal Diseases / Q000000981:diagnostic imaging*
D001466:Barium Sulfate