Common iliac vein
Citation, DOI, disclosures and article data
At the time the article was created Owen Kang had no recorded disclosures.View Owen Kang's current disclosures
location: pelvis, anterior to the sacroiliac joint
tributaries: iliolumbar and lateral sacral veins
It originates anterior to the sacroiliac joint from the union of the internal and external iliac veins. The common iliac veins are valveless in most people 3, and therefore may be used as central veins for the purposes of measuring right atrial pressures.
Course and termination
It courses superiorly and obliquely to unite with the contralateral vein, forming the inferior vena cava at the level of the L5 vertebral body.
Bilaterally, the veins receive the iliolumbar and lateral sacral veins which drain the iliopsoas muscle, the L4 and L5 vertebrae, and the obturator vein from the medial compartment of the thigh. The left common iliac vein additionally receives the median sacral vein.
Left common iliac vein
anteriorly: attachment of the sigmoid mesocolon, superior rectal vessels
laterally: common iliac artery (later anteriorly, further up its course)
Right common iliac vein
anteriorly: common iliac artery (later medially, further up its course)
posteriorly: right obturator nerve
the left common iliac vein occasionally receives the left renal vein