ascending lumbar vein


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Related to ascending lumbar vein: azygos vein

as·cend·ing lum·bar vein

[TA]
paired, vertical vein of the posterior abdominal wall, adjacent and parallel to the vertebral column, posterior to the origin of the psoas major muscle; it connects the common iliac, iliolumbar, and lumbar veins in the paravertebral line, the right vein joining the right subcostal vein to form the azygos vein, the left vein uniting with the left subcostal vein to form the hemiazygos vein.
Synonym(s): vena lumbalis ascendens [TA]

as·cend·ing lum·bar vein

(ă-send'ing lŭm'bahr vān) [TA]
A paired, vertical vein of the posterior abdominal wall, adjacent and parallel to the vertebral column, posterior to the origin of the psoas major muscle; it connects the common iliac, iliolumbar, and lumbar veins in the paravertebral line, the right vein joining the right subcostal vein to form the azygos vein, the left vein uniting with the left subcostal vein to form the hemiazygos vein.

ascending lumbar vein

An anterior-posterior vein along the posterior abdominal wall that connects the common iliac, iliolumbar, and lumbar veins; it empties into the subcostal, azygos, hemiazygos, or first lumbar vein.
See also: vein
References in periodicals archive ?
The terminations of the right and left ascending lumbar veins when present are traced and studied in relation to the aortic opening and the crura of the diaphragm.
More over a dilated communicating vein between left renal and left ascending lumbar vein has been described as a potential diagnostic pitfall on abdominal computed tomography (CT) because these may mimic para-aortic lymphadenopathy (1,2).
But the lumbar azygos vein was absent (though present on the right side) and a dilated communicating vein (of almost equal thickness as the left renal vein) was seen to pass deep to the left psoas major muscle into the left para-vertebral gutter and communicate with the left ascending lumbar vein (figure 1 & 2).