A very rare renal venous anomaly: Accessory polar left renal vein.

A 49-year-old female patient with hypertension was admitted with an intraabdominal murmur and referred for multidetector computed tomography angiography for suspected renal artery stenosis. Her medical history, clinical examination, serum biochemistry, and ultrasound examination findings showed no pathological findings of diabetes mellitus or any other disease. Axial and coronal reformatted multidetector computed tomography angiography revealed a dilated accessory polar renal vein which drained the venous circulation of the left lower pole into the inferior vena cava at midline. In conclusion, multidetector computed tomography angiography plays a progressively substantial role in the assessment of renal vascularity. Vascular surgeons and urologists should be a thorough knowledge of renal vascular variations.