Patient Data
Gender: Male
From the case:
Retroaortic left renal vein (MRI)
Axial T2

The left renal vein is seen coursing posterior to the aorta before draining into the IVC.
Case Discussion
Retroaortic left renal vein is an anatomical variant where the left renal vein is located between the aorta and the vertebra and drains into the inferior vena cava.