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  • Title: [The clinical analysis of 62 cases of the urothelial inverted papilloma].
    Author: Yu J, Sun ZX, Kong CZ, Du SQ.
    Journal: Zhonghua Wai Ke Za Zhi; 2009 Sep 15; 47(18):1400-2. PubMed ID: 20092776.
    Abstract:
    OBJECTIVE: To investigate the clinical manifestation, biological behavior, diagnosis and treatment of the urothelial inverted papilloma. METHODS: Sixty-two cases of urothelial inverted papilloma were analyzed retrospectively from January 1990 to August 2008. Of the 62 patients, 51 were men and 11 were women. The average age at presentation was 56.4 years old. Fifty-six cases were solitary tumors and 6 were multiple. The most common compliant was macroscopic hematuria. The tumor located at the ureter in 5 cases. Of these cases, 4 were treated by local excision, 1 by nephroureterectomy. One case of multiple ureteral inverted papilloma with coexistent bladder inverted papilloma was treated by total cystectomy. The tumor located at the bladder in 52 cases, with 44 treated by transurethral resection of bladder tumor, 6 by partial cystectomy, 2 by total cystectomy. Four cases had the tumor located at the urethra, with 1 treated by transurethral resection of tumor, 3 by tumorectomy. RESULTS: The postoperative pathological diagnosis of all the 62 cases was inverted papilloma, synchronous urothelial carcinoma in 7. Follow-up data were available in 49 cases. Two cases had a recurrence at 7 months and 79 months, respectively. Three case of subsequent transitional cell carcinoma developed 18 months, 2 years and 6 years later, respectively. CONCLUSIONS: Inverted urothelial papilloma is a kind of benign tumor. It should be differentiated from malignant urothelial tumors. Surgical operation is the main treatment choice. Cystoscopic surveillance and followup are necessary after the operation regularly.
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