Accessory hemiazygos vein

The accessory hemiazygos vein, also called the superior hemiazygous vein,[1] is a vein on the left side of the vertebral column that generally drains the fourth through eighth intercostal spaces on the left side of the body.[2]

Accessory hemiazygos vein
Diagram showing completion of development of the parietal veins (accessory hemiazygos vein visible at center-left)
The venae cavae and azygos veins, with their tributaries
Drains toHemiazygos vein, azygos vein
LatinVena hemiazygos accessoria,
vena azygos minor superior
Anatomical terminology

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