The supreme intercostal vein
(highest intercostal vein
) is a paired vein that drains the first intercostal space
on its corresponding side.
It usually drains into the brachiocephalic vein
. It can also drain into the superior intercostal vein
, or the vertebral vein
of its corresponding side.
This vein does not have valves, this is an important point when it comes to spread of cancerous