Azygos Reconstruction for Non-Small Cell Lung Cancer Involvement in Agenesis of Inferior Vena Cava

Abstract

A 59-year-old man underwent an urgent thoracotomy due to a massive hemothorax caused by a computed tomographic-guided fine-needle aspiration of a right upper lobe tumor. The computed tomographic scan showed an agenesis of inferior vena cava beneath to the suprahepatic veins and a massive distended arch of the azygos vein that drains to the superior vena cava all the blood coming from the inferior side of the body (Fig 1A) azygos arch drains into the superior vena cava (white arrows), and (Fig 1B) the rudimentary inferior vena cava receives blood from the hepatic segments (black arrow).