Left renal vein

The renal veins are of large size, and placed in front of the renal arteries.

The left renal vein is longer than the right renal vein, and passes in front of the aorta, just below the origin of the superior mesenteric artery. It receives the left ovarian or testicular vein and left inferior phrenic veins, and, generally, the left suprarenal vein. It opens into the inferior vena cava at a slightly higher level than the right renal vein.  

The interlobular veins and arcuate veins, which drain the renal cortex, combine to form the interlobar veins, which are subsequently drained by the lobar veins. The lobar veins unite and form the main renal vein.

The renal capsular veins are a venous network into the renal adipous capsule, forming a collateral network with adjacent veins, and draining in the renal vein.