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Updated: Jul 19, 2026

An Orthotopic Bladder Tumor Model and the Evaluation of Intravesical saRNA Treatment
Published on: July 28, 2012
[Inverted papilloma of the bladder]
Octavia Castillo1, Jorge Hoyos, Gonzalo Vitagliano
1Unidad de Endourología y Laparoscopía Urológica, Clinica Santa María, Universidad de Chile. octaviocastillo@vtr.net
Bladder inverted papilloma is a rare condition. While often benign, its potential for malignancy and association with transitional cell carcinoma warrant careful consideration.
Area of Science:
- Urologic Oncology
- Pathology
Context:
- Bladder inverted papilloma (BIP) is a rare urothelial neoplasm.
- Understanding its clinical behavior is crucial for patient management.
Purpose:
- To describe clinical features, presentations, and outcomes of BIP.
- To review diagnostic criteria, treatment, and prognosis.
Summary:
- 16 BIP cases (10 male, 6 female; mean age 53.1) were analyzed.
- Common symptoms included urgency (43.7%) and hematuria (37.5%).
- Lesions were mostly in the trigone; transurethral resection was standard treatment. Two cases (12.5%) had associated transitional cell carcinoma.
Impact:
- Highlights the rarity and varied presentation of BIP.
- Emphasizes the need to consider potential malignancy due to recurrence and TCC association.
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