Unusually competent ileo-cecal valve.
D012809:Colon, Sigmoid / Q000002:abnormalities*; D003125:Colostomy; D000013:Congenital Abnormalities / Q000150:complications; D006801:Humans; D007080:Ileocecal Valve / Q000000981:diagnostic imaging*; D007231:Infant, Newborn; D007415:Intestinal Obstruction / Q000209:etiology* / Q000601:surgery; D008297:Male; D011859:Radiography