Circumaortic Left Renal Vein with Focal Dilatation of the Retroaortic Limb: An Incidental CT Finding

Authors

Rania Bouanane, Hatim Essaber, Ouiam Taibi, Salma El Aouadi, F.Z Laamrani, Youssef Omor, Rachida Latib, Sanae Amalik

Journal Information

Journal: Medpeer Publisher

ISSN: 3066-2737

Volume: 3

Issue: 3

Date of Publication: 2026/03/23

DOI: 10.70780/medpeer.000QGRX

Abstract

Circumaortic left renal vein (CLRV) is a rare congenital venous variant characterized by duplication of the left renal vein forming a vascular ring around the aorta. It is most often asymptomatic and incidentally detected on imaging. We report a case identified on contrast-enhanced abdominal CT performed for oncologic evaluation. Recognition of this anatomical variant is essential to avoid diagnostic pitfalls and prevent potential complications during retroperitoneal surgical or interventional procedures.

Keywords

Circumaortic left renal vein; Renal vein anomaly ; Venous variant; Incidental finding