left superior intercostal vein

Course

• passes anteriorly, across the arch of the aorta

Anastomoses

accessory hemiazygos vein (frequent)

Tributaries

• formed by merging of the left 2nd, 3rd, & 4th intercostal veins

Empties into

left brachiocephalic vein

More general terms

• vein

Additional terms

• accessory hemiazygos vein
• intercostal vein
• left brachiocephalic (innominate) vein