hemiazygous vein

hemiazygous vein

[¦he·mē′az·ə·gəs ′vān]
(anatomy)
A vein on the left side of the vertebral column which drains blood from the left ascending lumbar vein to the azygos vein.
References in periodicals archive ?
Hepatic veins were patent and there were no collaterals from the hepatic venous system to the hemiazygous vein. Cardiac catheterization and angiography confirmed the presence of the membrane at the junction of vena cava and right atrium with no significant gradient (Fig.