Rare giant primary ureteral polyp: A case report and literature review

Abstract

Primary ureteral fibroepithelial polyps (UFPs) are rare benign tumors of mesodermal origin. The majority UFPs are observed in the proximal part of the ureter and most commonly on the left side. The mean diameter of UFP is reported to be <5 cm. We herein present a rare case of a long primary ureteral polyp originating from the lower ureter in a 53-year-old woman. Following computed tomography, magnetic resonance imaging, retrograde pyelography and ureteroscopic examination, a preliminary diagnosis of giant primary lower ureteral polyp protruding into the bladder was obtained. Polyp resection and resection of the narrow ureteral segment with a V-shaped end-to-end anastomosis were performed. The length of this polyp was 15.0 cm, and the final pathological diagnosis was UFP. No recurrence or ureteral stenosis were observed at the 12-month follow-up. A supplementary review of previously published cases and related literature is also included.

Giant ureteral fibro-epithelial polyp: A rare but important differential of ureteral urothelial cell carcinoma

“…Both CECT KUB and MRI KUB are inadequate modalities when it comes to differentiating FEPs from UCC, and management decisions should not be solely based on imaging findings. 1,5 The moth-eaten appearance usually described for UCC may also be seen with FEPs, as in our case, as opposed to the smooth filling defect usually described. 3 This emphasizes the importance of careful ureteroscopic examination before any ablative procedure is undertaken.…”

“…These benign mesenchymal tumours account for <1% of all genitourinary neoplasms. 1 FEPs are usually described in the left proximal ureter (70%) with a male preponderance (58–89%), 2,3 and distal ureteral giant primary FEPs are extremely rare. The median length of FEPs described in the literature is 4 cm (4–17 cm).…”

Rare Fibroepithelial Polyp Extending Along the Ureter: A Case Report

“…Kijvikai et al ( 7 ) reported a case with a 17-cm-long FEP stemming from a distal UPJ, which was treated with laparoscopic pyeloplasty. Recently, endoscopic treatment has been used with increasing frequency for patients with ureteral tumors, as seen in the present case ( 8 ). Open or laparoscopic/robotic treatment options may be available for surgeons who lack sufficient experience for endoscopic treatment ( 9 ).…”

Management of lower urinary tract fibroepithelial polyps in children

“…Comparison with the adult population [12,14,29,30] indicates that the clinical presentation of FEP appears to be similar. The management, however, is not entirely the same.…”