Radiology's stepchild--the colon.
D002277:Carcinoma / Q000000981:diagnostic imaging; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging; D003951:Diagnostic Errors; D005243:Feces; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging; D011859:Radiography; D013997:Time Factors