The Use of Multi Detector Computed Tomography in Assessing the Retroaortic Left Renal Vein and Accompanying Vessel Anomalies

Objective: Because renal venous variations possess potential hazards during abdominal aortic surgery or laparoscopic donor nephrectomy, the detailed preoperative evaluation of the renal vessels with angiography should be performed to avoid vascular injuries. We present multidetector row computed tomography (MDCT) fi ndings of the retroaortic left renal vein (RLRV) with other vascular variations. Materials and Methods: Twenty-two patients with RLRV were evaluated with MDCT using multiplanar images, MIP images, and 3D volume rendering. Results: The RLRVs with accessory renal vessels and other variant veins draining into the left renal vein were eff ectively evaluated in all patients.