Transcaval ureter: A rare embryological anomaly of inferior vena cava causing obstructive uropathy

Transcaval ureter: A rare embryological anomaly of inferior vena cava causing obstructive uropathy

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Transcaval ureter is a rare condition caused by abnormality in the embryogenesis of the inferior vena cava (IVC).It results from a segmental duplication of the IVC which creates a olea europaea montra venous ring that encircles the right ureter.Here, we report a case of a 42-year-old female who presented to us with a history of right flank pain for 2 years.Ultrasonography, intravenous urogram, and contrast-enhanced computed tomography (CECT) scan of the abdomen suggested it to be a retrocaval ureter.On exploration, contrary to the report moen rothbury faucet of imaging, the ureter was found to transverse in between two segments of IVC and thus on table, a diagnosis of the right transcaval ureter as the cause of obstruction was made.

The patient underwent segmental ureteral resection followed by ureteroureterostomy.Follow-up CECT scan was done to document two segments of IVC and thus confirm our intraoperative finding.