title: The scapula as a cause of a spurious posterior mediastinal mass on lateral chest films of infants.
mesh_terms: D001466:Barium Sulfate; D003951:Diagnostic Errors; D004373:Ductus Arteriosus / Q000000981:diagnostic imaging*; D006801:Humans; D007231:Infant, Newborn; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D008482:Mediastinum / Q000000981:diagnostic imaging*; D011859:Radiography; D012540:Scapula / Q000000981:diagnostic imaging*; D014132:Trachea / Q000000981:diagnostic imaging
chemical_list: D001466:Barium Sulfate