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[A case of inverted papilloma of the prostatic urethra]
Toshiaki Hirai1, Motohide Uemura, Hitoshi Inoue
1Department of Urology, Osaka Rosai Hospital.
Insights
A rare prostatic urethra tumor, inverted papilloma, was successfully resected in a 59-year-old male patient presenting with gross hematuria. This case highlights an unusual location for this bladder tumor type in Japan.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Inverted papilloma (IP) is a rare bladder tumor, typically benign, characterized by a villous architecture with endophytic growth.
- While most IPs occur in the urinary bladder, they can exceptionally arise in other urothelial sites.
Observation:
- A 59-year-old male presented with gross hematuria, a significant clinical symptom requiring prompt investigation.
- Diagnostic imaging and cystoscopy revealed a pedunculated, non-papillary tumor within the prostatic urethra.
Findings:
- Transurethral resection of the tumor was performed, providing both therapeutic and diagnostic material.
- Pathological examination confirmed the diagnosis of inverted papilloma, an uncommon finding in this specific anatomical location.
Implications:
- This case represents the 32nd reported instance of prostatic urethral inverted papilloma in Japan, underscoring its rarity.
- The successful resection suggests transurethral removal is a viable treatment option for localized prostatic urethral inverted papillomas.
- Further research into the etiology and behavior of IPs in the prostatic urethra may be warranted.
Abstract:
A 59-year-old male with a complaint of gross hematuria was found to have a pedunculated and non-papillary tumor on the prostatic urethra. The tumor was resected transurethrally. The pathological finding was inverted papilloma. Although the majority of the cases of inverted papilloma have been found in the bladder, we reported the 32nd case located on the prostatic urethra in Japan.
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