We present a 64-year-old male who presented with right-sided flank pain secondary to a parapelvic cyst impinging on the proximal ureter. However, intraoperative findings showed that the ureter was encased within the parapelvic cyst and secondarily obstructed at the UPJ rather than extrinsically compressed by the cyst. This specific anatomic variant is exceedingly rare as no published cases with similar anatomy could be identified.
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Hill et al. (2024) studied this question.
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