Iliolumbar vein

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Vein: Iliolumbar vein
The veins of the right half of the male pelvis. (Iliolumbar vein visible at center right.)
Latin vena iliolumbalis
Drains to internal iliac vein
Artery iliolumbar artery
/ Elsevier

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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

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. Complications Of Pediatric And Adult Spinal Surgery. New York, N.Y: Marcel Dekker. p. 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. PMID 12358370.
  3. 3.0 3.1 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 (New York, N.Y.). 20 (5): 545–52. doi:10.1002/ca.20489. PMID 17373712.

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