Meckel's diverticulum.
D000368:Aged; D001466:Barium Sulfate; D004733:Enema; D006801:Humans; D008297:Male; D008467:Meckel Diverticulum / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications; D011859:Radiography
D001466:Barium Sulfate