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Fibroepithelial polyps of the urinary tract
T R Williams1, B J Wagner, W R Corse
1Naval Medical Center San Diego, Department of Radiology, 34800 Bob Wilson Drive, San Diego, CA 92134-5000, USA.
Abdominal Imaging
|February 16, 2002
Summary
Fibroepithelial polyps are rare urothelial growths often misdiagnosed as cancer. This study clarifies their distinct patient demographics, urinary tract locations, and imaging features, aiding differential diagnosis.
Area of Science:
- Urology
- Pathology
- Radiology
Background:
- Fibroepithelial polyps of the urothelium are rare benign tumors.
- They are frequently misdiagnosed as malignant transitional cell carcinoma.
- Accurate differentiation is crucial for appropriate patient management.
Purpose of the Study:
- To define the demographics of fibroepithelial polyps.
- To describe their distribution within the urothelium.
- To characterize their gross anatomic and radiologic appearances.
Main Methods:
- Retrospective review of 41 pathologically confirmed cases.
- Data collected from radiographic studies, gross pathology, and reports.
- Categorization by age, sex, presentation, size, location, and morphology.
Main Results:
- Mean patient age was 21 years; 58% were male.
- Common presentations included hematuria and flank pain (68%).
- Most polyps were in the upper ureter/renal pelvis (87%); pediatric cases involved the urethra/bladder. Lesions were typically 1-6 cm.
Conclusions:
- Fibroepithelial polyps differ from malignant urothelial tumors in patient population, location, and radiographic appearance.
- Recognizing these distinguishing features aids in the differential diagnosis of urothelial masses.
- Considering fibroepithelial polyps in the differential diagnosis impacts surgical treatment decisions.
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