title: Radiographic and sonographic findings in spontaneous retrograde intussusception.
abstract: Spontaneous retrograde intussusception causing obstruction is rare. We describe the radiographic and sonographic appearances, which should have been sufficient for preoperative diagnosis, in one patient.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D000236:Adenoma / Q000000981:diagnostic imaging; D000368:Aged; D003108:Colonic Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging; D007443:Intussusception / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography; D014463:Ultrasonography