title: [Profile projection of the rectosigmoid in left lateral decubitus with vertical rays in the diagnosis of obstruction of the lower colon].
abstract: For differential diagnosis between obstruction of the lower organ and paralytic ileus, an additional projection to the customary A.S.P. plates is proposed: profile of the rectosigmoid in left lateral decubitus with vertical rays, designed to back up the differential reasoning behind the presence or absence of a rectosigmoid distended by gas.
mesh_terms: D012809:Colon, Sigmoid / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D007415:Intestinal Obstruction / Q000175:diagnosis / Q000000981:diagnostic imaging*; D007418:Intestinal Pseudo-Obstruction / Q000175:diagnosis; D011859:Radiography; D012007:Rectum / Q000000981:diagnostic imaging*
vernacular_title: L'incidence de profil du recto-sigmoïde en décubitus latéral gauche avec rayon vertical dans le diagnostic des occlusions coliques basses.