[Occlusive retrograde azygography using balloon wedge pressure catheter (author's transl)].
D001401:Azygos Vein / Q000000981:diagnostic imaging*; D002404:Catheterization / Q000295:instrumentation / Q000379:methods*; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D011859:Radiography