posterior intercostal vein

Introduction

Multiple small veins.

Tributaries

posterior portion of intercostal spaces

Empties into

• 1st cervical space -> brachiocephalic vein
• 2nd & 3rd cervical spaces -> right & left superior intercostal veins
• 4th-11th spaces
  • azygos vein on the right
  • hemiazygos vein or accessory hemiazygos vein on the left

More general terms

• intercostal vein

Additional terms

• accessory hemiazygos vein
• azygos vein
• brachiocephalic vein
• hemiazygos vein