Evaluation of left renal vein and inferior vena cava variations through routine abdominal multi-slice computed tomography

BACKGROUND: The aim of this study was to evaluate the frequency of left renal vein (LRV) and inferior vena cava (IVC) variations and the effect of gender on this frequency, as well as the presence of associated abdominal pathologies. MATERIALS AND METHODS: Multi-slice computed tomography (MSCT) images from 746 patients were evaluated retrospectively. RESULTS: Left renal vein variations were identified in 9.8% of cases, while retroaortic LRV (RLRV) and circumaortic LRV (CLRV) were found in 7.4% and 2.4% of cases, respectively. No significant correlation was found between gender and LRV variations (p = 0.797). Of the cases with LRV and IVC variations, 73% had abdominal pathologies, the most common of which were nephrolithiasis, which appeared in 18 (32%) cases, and renal cysts, which appeared in 14 (25.4%) cases. CONCLUSIONS: MSCT is a rapid and reliable method of identifying LRV and IVC variations and associated abdominal pathologies.