Two rare cases of circumaortic left renal vein with double retroaortic limbs and its procedural implications

Abstract

Circumaortic left renal vein with additional retroaortic limb is a rare anatomic variant. We encountered two cases in our practice with additional retroaortic limb draining into hemiazygos and IVC respectively. We focus on discussing the clinical relevance and surgical implications of such variants.

Keywords

• Renal vein anomaly
• Circumaortic renal vein
• Double retroaortic limbs