Iliolumbar vein

The iliolumbar vein is the vena comitans of the iliolumbar artery.

Iliolumbar vein
The veins of the right half of the male pelvis. (Iliolumbar vein visible at center right.)
Drains tocommon iliac vein Artery = iliolumbar artery
Latinvena iliolumbalis
Anatomical terminology

The obturator nerve crosses superficial to it.[1]

A single vein is found more commonly than a double vein.[2]

It drains vertebral segments four and five.[3]

It is closely related to the ascending lumbar vein.[3]


  1. Vaccaro, Alexander R. (2004). Complications Of Pediatric And Adult Spinal Surgery. New York, N.Y: Marcel Dekker. pp. 135. ISBN 0-8247-5421-2.
  2. Jasani V, Jaffray D (2002). "The anatomy of the iliolumbar vein. A cadaver study". The Journal of Bone and Joint Surgery. British Volume. 84 (7): 1046–9. doi:10.1302/0301-620X.84B7.13195. PMID 12358370.
  3. Hamid M, Toussaint PJ, Delmas V, Gillot C, Coutaux A, Plaisant O (2007). "Anatomical and radiological evidence for the iliolumbar vein as an inferior lumbar venous system". Clinical Anatomy. 20 (5): 545–52. doi:10.1002/ca.20489. PMID 17373712.

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