Percutaneous endoscopic resection of a large fibroepithelial polyp in the renal pelvis using a resectoscope: a case report.

Background: Fibroepithelial polyp (FEP) in the renal pelvis is a rare benign tumor of the urinary tract. Treatment of such diseases varies from local resection to radical nephroureterectomy, either by open or endoscopic surgery. This study aims to show our successful experience in percutaneous endoscopic resection of FEP.

Case Description: We present a 36-year-old female patient with a large FEP in the left renal pelvis. The patient was evaluated by performing computed tomography (CT), magnetic resonance imaging (MRI) and ureteroscopy. Based on the preoperative examinations, there were several difficulties to consider in this case. First, the polyp was located in the inferior renal calyces, which increased the difficulty of endoscopic excision. Second, the size of the polyp was larger than that previously reported. We tried two strategies to resect it, and finally succeeded by percutaneous resection with a resectoscope. No recurrence was found during the follow-up period.

Conclusions: We present the case of a 36-year-old woman, who successfully underwent percutaneous endoscopic resection of a large FEP in the renal pelvis by a resectoscope without recurrence or complications after 3 months. The surgical technique used in our case adds to the body of evidence of successful endoscopic management of FEP in the renal pelvis. Percutaneous endoscopic resection is an effective way for FEP.