Azygography.
D000772:Anesthesia, Local; D001401:Azygos Vein / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D001853:Bone Marrow; D003973:Diatrizoate / Q000008:administration & dosage; D006801:Humans; D007267:Injections; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D012272:Ribs
D003973:Diatrizoate