Related Experiment Video
Updated: Oct 12, 2025

Detection of Tissue-resident Bacteria in Bladder Biopsies by 16S rRNA Fluorescence In Situ Hybridization
Published on: October 18, 2019
Ureteral fibroepithelial polyp: A diagnostic challenge.
Raj A Kumar1, Michael Maidaa2, Jon Frankel3
1Catherine & Joseph Aresty Department of Urology, Keck Medicine of USC, University of Southern California, Los Angeles, CA, USA.
Ureteral fibroepithelial polyps (UFPs) are rare benign tumors. This case highlights diagnostic challenges with imaging, emphasizing cystoscopy and ureteroscopy for diagnosis and treatment.
Area of Science:
- Urology
- Oncology
Background:
- Ureteral fibroepithelial polyps (UFPs) are uncommon benign neoplasms of the ureter.
- Documented cases between 1932 and 2013 total 236, indicating rarity.
Observation:
- A patient presented with hematuria, a common symptom prompting investigation.
- Computerized tomography (CT) suggested a 1.8 cm mass, but magnetic resonance imaging (MRI) yielded negative results.
- Cystoscopy revealed a polyp prolapsing from the left ureter into the bladder during peristalsis.
Findings:
- The diagnostic imaging (CT and MRI) was inconclusive for the ureteral mass.
- Cystoscopic and subsequent ureteroscopic visualization confirmed the polyp's presence and location.
- Retrograde ureteroscopy with holmium laser excision successfully treated the UFP.
Implications:
- This case underscores the limitations of standard imaging modalities in diagnosing UFPs.
- It highlights the diagnostic and therapeutic utility of cystoscopy and ureteroscopy for UFPs.
- Effective management of UFPs can be achieved through minimally invasive endoscopic techniques.
Related Concept Videos
Urologic Endoscopic Procedure: Cystoscopic Examination
Ureters
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

