Azygos continuation of inferior vena cava: CT appearance

Two cases demonstrating the computed tomographic appearance of azygos continuation of the inferior vena cava (IVC) are presented. One is associated with a retroaortic left renal vein and the other with a duplicated IVC. An enlarged azygos vein should not be confused with retrocrural lymphadenopathy...

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Veröffentlicht in:Journal of computer assisted tomography 1980-06, Vol.4 (3), p.392-397
Hauptverfasser: Breckenridge, J W, Kinlaw, W B
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Kinlaw, W B
description Two cases demonstrating the computed tomographic appearance of azygos continuation of the inferior vena cava (IVC) are presented. One is associated with a retroaortic left renal vein and the other with a duplicated IVC. An enlarged azygos vein should not be confused with retrocrural lymphadenopathy or a mediastinal mass. It is a tubular structure extending from the diaphragm to the azygos arch, which together with the aorta forms a characteristic collar around the trachea. It enhances intensely after intravenous injection of contrast material.
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subjects Azygos Vein - diagnostic imaging
Diagnosis, Differential
Dilatation, Pathologic
Humans
Male
Middle Aged
Pancreas - diagnostic imaging
Tomography, X-Ray Computed
Vascular Diseases - diagnostic imaging
Vena Cava, Inferior - abnormalities
Vena Cava, Inferior - diagnostic imaging
title Azygos continuation of inferior vena cava: CT appearance
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