Abstract:

Background: Although several studies were performed for the classification of renal venous system, abnormal venous drainage pathways were so few mentioned in literature. Case report: Herein, we present a very rare case of a patient with asymptomatic hematuria who had an abnormal venous drainage of right kidney. Performed ultrasonography and Computed Tomography exams revealed an abnormal venous pathway outside the renal hilum of right kidney draining to lumbar venous plexus, unlike inferior vena cava. Conclusion: Anomalies of renal veins are relatively rare, usually detected during routine examinations performed for other indications. Be aware of such anomalies is important in several interventional procedures. If unrecognized, these anomalies or variations may lead to significant complications or death.

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