Assertion: left renal vein | /r/HasProperty | course
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Source sentences:
text: Kawamoto et al (6) reported that it is difficult to determine whether a small vein that is connected to the left renal vein, courses posterior to the aorta, and drains into the IVC should be defined as the retroaortic component of a circumaortic renal vein or as a communication of a retroperitoneal vein—such as the lumbar and ascending lumbar veins—with the IVC by way of a small venous collateral vessel (Fig 28).