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KMID : 1237720120450040282
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Anatomy & Cell Biology
2012 Volume.45 No. 4 p.282 ~ p.284
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The double retro-aortic left renal vein
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Kyung Dong-Soo
Lee Jae-Ho
Shin Deuk-Yong
Kim Dae-Kwang
Choi In-Jang
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Abstract
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The renal veins drain the kidney into the inferior vena cava and unite in a variable fashion to form the renal vein. The left renal vein is normally located in front of the aorta. However, the retro-aortic renal vein may course posterior to the aorta due to embryological developmental anomalies. During educational dissection, a rare variation of the left renal vein was found in a 66-year old male cadaver. The double retro-aortic renal veins coursed behind the aorta to drain into the inferior vena cava. The superior retro-aortic renal vein drained into the inferior vena cava at the lower border of the L2 vertebra, and the inferior retro-aortic renal vein drained into the inferior vena cava at the upper border of the L4 vertebra. Such a variant is rare, and is a clinically important observation which should be noted by vascular surgeons, oncologists, and traumatologists.
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KEYWORD
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Renal veins, Variation, Retro-aortic
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