lumbar veins


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Related to lumbar veins: ascending lumbar vein

lum·bar veins

[TA]
five in number, these veins accompany the lumbar arteries, drain the posterior body wall and the lumbar vertebral venous plexuses, and terminate anteriorly as follows: the first and second in the ascending lumbar vein, the third and fourth in the inferior vena cava, and the fifth in the iliolumbar vein; all communicate through the ascending lumbar veins.
Synonym(s): venae lumbales [TA]

lumbar veins

four pairs of veins that collect blood by dorsal tributaries from the loins and by abdominal tributaries from the walls of the abdomen. The lumbar veins are connected by the ascending lumbar vein that runs ventral to the transverse processes of the lumbar vertebrae.
References in periodicals archive ?
b) Initial noncontrast CT coronal reformatted images demonstrated a large high density left retroperitoneal hematoma (dashed arrow) contiguous with high-attenuated tubular structure arising from the left side of IVC (arrow), likely a lumbar vein.
b) Contrast CT coronal reformatted image during delayed (120 sec) venous phase demonstrated hyperattenuated contrast material below the IVC filter contiguous with dilated left lumbar vein (arrow) extending to left retroperitoneal hematoma (dotted arrow).
Caption: Figure 3: Selective catheter venogram reveals brisk active extravasation from a left lumbar vein into the left retroperitoneal hematoma (arrow).
It coursed laterally posterior to the left suprarenal vein (shown in the inset of figure 2) and then crossed the anterior surface of the left kidney accompanying the lumbar vein to reach the posterior abdominal wall.
According to Jack Baniel et al in their study on lumbar vessels, a lumbar vein entering the left renal vein was documented in 43% of cases.
Cases of lumbar vein forming a tributary of the renal vein have been reported by Satheesha, Jyotsna et al and Bandopadhyay et al.
A dilated communicating vein between the left renal vein and the left ascending lumbar vein is one of them regarding which there have been only a few cases reported in literature.
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).