Double contrast barium enema.
D001466:Barium Sulfate; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging; D004733:Enema; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging; D011859:Radiography; D013679:Technology, Radiologic
D001466:Barium Sulfate