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azygos continuation (of the inferior vena cava)

 

Definition: a congenital anomaly in which the infrahepatic portion of the vena cava fails to form, and venous drainage of the lower body is maintained through a persistent right supracardinal vein, which becomes a large azygos vein.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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