azygos vein

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azygos vein

[ā′zī·gəs ‚vān]
(anatomy)
A branch of the right precava which drains the intercostal muscles and empties into the superior vena cava.
References in periodicals archive ?
The thoracic duct receives drainage from the abdominal cavities, and lies superior to the azygos vein, close to the thoracic aorta (4).
Abstract 3: "Safety of Outpatient Endovascular Treatment of the Internal Jugular and Azygos Veins for Chronic Cerebrospinal Venous Insufficiency (CCSVI) in Multiple Sclerosis: a Retrospective Analysis," K.