title: [The radiological visualization of the calculus in biliary ileus and the possibilities of error. Presentation of 2 cases].
mesh_terms: D002137:Calculi; D002769:Cholelithiasis / Q000000981:diagnostic imaging*; D006801:Humans; D045823:Ileus; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D011859:Radiography; D011871:Radiology
keywords: CHOLELITHIASIS/radiography; INTESTINAL OBSTRUCTION/radiography