Left renal vein variants are not commonly observed in the general population. Usually. the renal vein runs in front of the aorta before entering the inferior vena cava. while the most common variants include the presence of a circumaortic or retroaortic renal vein. https://www.diegojavierfares.com/bargain-Merlin-the-Magical-Wizard-Boys-Costume-special-save/