Azygous Continuation of the Inferior Vena Cava

  • Etiology: post-hepatic segment of inferior vena cava is present draining only hepatic veins into right atrium, there is an interruption of infrahepatic/suprarenal inferior vena cava, renal segment of inferior vena cava drains via azygos vein into superior vena cava
  • Imaging: absence of the hepatic segment of the inferior vena cava with azygos continuation

Cases of Azygous Continuation of the Inferior Vena Cava