The accessory hemiazygos vein, also called the superior hemiazygos vein, drains the superior left hemithorax. In a majority of cases there is a small connection to the left superior intercostal vein, and rarely, 1–2% of the time, the accessory hemiazygos vein drains into the brachiocephalic vein [3].
People also ask
What is the difference between hemiazygos vein and azygos vein?
What does the hemiazygos vein drain into?
What is the course of the accessory hemiazygos vein?
What is the accessory hemiazygos vein in the lung?
The accessory hemiazygos vein, also called the superior hemiazygous vein, is a vein on the left side of the vertebral column that generally drains the ...