accessory hemiazygos vein

ac·ces·so·ry hem·i·az·y·gos vein

[TA]

vein formed by the union of the fourth to seventh left posterior intercostal veins, it passes along the side of the bodies of the fifth, sixth, and seventh thoracic vertebrae, then crosses the midline posterior to the aorta, esophagus, and thoracic duct, and empties into the azygos vein, sometimes in common with the hemiazygos vein.

Synonym(s): vena hemiazygos accessoria [TA], vena azygos minor superior

Farlex Partner Medical Dictionary © Farlex 2012

ac·ces·so·ry hem·i·az·y·gos vein

(ak-ses'ŏr-ē hem'ē-ā-zī'gos vān) [TA]

Formed by the union of the fourth to seventh left posterior intercostal veins, passes along the side of the bodies of the fifth, sixth, and seventh thoracic vertebrae, then crosses the midline behind the aorta, esophagus, and thoracic duct, and empties into the azygos vein, sometimes in common with the hemiazygos vein.
Synonym(s): vena hemiazygos accessoria [TA] .

Medical Dictionary for the Health Professions and Nursing © Farlex 2012