Thoracoscopic resection of mediastinal tumor in a patient with azygos continuation of the inferior vena cava

General Thoracic and Cardiovascular Surgery
Hiroaki KomatsuNoritoshi Nishiyama

Abstract

A 68-year-old man was referred to our hospital because of mediastinal tumor on chest computed tomography (CT). Contrast-enhanced CT showed azygos continuation of the inferior vena cava (IVC). The retro-hepatic IVC was absent superior to the renal veins. The IVC continued into the dilated azygos vein, which joined the superior vena cava. The hepatic vein drained directly into the right atrium. The mediastinal tumor was close to the dilated azygos vein. Video-assisted thoracoscopic resection of the mediastinal tumor was performed, using four ports and CO2 insufflation. Histological examination of the resected specimen revealed a pericardial cyst without malignancy. After a favorable postoperative course, the patient was discharged 4 days after surgery. It is important to recognize this anomaly before thoracic surgery, because transection of the azygos vein can be fatal. Video-assisted thoracoscopic resection of mediastinal tumor close to the azygos vein using CO2 insufflation avoids injury to the azygos vein.

References

May 1, 1995·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·R C SheleyR Kapur
Aug 1, 1994·The Annals of Thoracic Surgery·R S WolferJ S McLaughlin
Mar 1, 1997·Journal of Clinical Gastroenterology·D D Oakes
Aug 28, 1999·Radiographics : a Review Publication of the Radiological Society of North America, Inc·K E ApplegateD Murphy
Apr 25, 2000·Respiration; International Review of Thoracic Diseases·R Fernandes, R H Israel
Dec 25, 2007·The Annals of Thoracic Surgery·Antonio Martín-MalagónAntonio Alarcó
Jan 12, 2011·Interactive Cardiovascular and Thoracic Surgery·Timothy HardwickJuliet King
Sep 29, 2011·Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus·E S VeltmanM I van Berge Henegouwen
Dec 3, 2013·The Journal of Thoracic and Cardiovascular Surgery·Bo YeHeng Zhao

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Citations

Apr 25, 2020·Surgical and Radiologic Anatomy : SRA·Satheesha B Nayak, K V Soumya

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