Ascending lumbar vein

Last revised by Daniel MacManus on 03 Mar 2022

The ascending lumbar vein is a paired structure which forms a part of the venous drainage of the lumbar vertebral column.


  • location: near midline on the side of the vertebral column in the lumbar region
  • origin and termination: continuation of the lateral sacral veins; joins the ipsilateral subcostal vein, on the right to form the azygos vein and on the left to form the hemiazygos vein at approximately the T12-L2 vertebral level.
  • tributaries and drainage: lumbar veins, draining the lumbar spinal column
  • relations: psoas major muscle anteriorly, lumbar transverse processes posteriorly

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