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  • Title: Twenty-five cases of adult prostate sarcoma treated at a high-volume institution from 1989 to 2009.
    Author: Wang X, Liu L, Tang H, Rao Z, Zhan W, Li X, Zeng H, Zhang P, Wei B, Lin T, Wei Q, Lu Y, Li X.
    Journal: Urology; 2013 Jul; 82(1):160-5. PubMed ID: 23601444.
    Abstract:
    OBJECTIVE: To analyze the clinical characteristics, treatment modalities, and outcomes of adult prostate sarcoma treated at our institution. MATERIALS AND METHODS: The medical records of 25 adult patients with prostate sarcoma were obtained from January 1989 to December 2009. The clinicopathologic parameters were evaluated to determine their effect on survival. RESULTS: The median age was 37 years (range 18-81). The median tumor size was 9.5 cm (range 4-25). The median serum prostate-specific antigen level was 1.39 ng/mL (range 0.39-33.20). The most common symptom was dysuria (72%). Transrectal ultrasound-guided needle biopsy was used to diagnose 22 sarcomas, transurethral resection of the prostate to diagnose 2, and open surgery to diagnose 1. The predominant histologic subtype was leiomyosarcoma (40%); 21 (88%) were high grade and 6 patients had metastatic disease. Surgical resection of curative intent was performed in 14 patients, with negative margins in 10. After a median follow-up of 21 months (range 5-63), 2 patients were disease free, 4 were alive with disease, and 19 had died of their disease. Overall, the 1-, 2-, 3-, and 5-year survival rate was 80.0%, 47.4%, 22.6%, and 11.3%, respectively, and the median survival time was 23 months. The median survival time after recurrence was 20 months (range 9-39) and that after metastasis was 10 months (range 3-23). Age >50 years, metastasis at presentation, and a lack of surgery with curative intent were independently predictive of an unfavorable outcome. CONCLUSION: Adult prostate sarcoma accounted for 0.7% of primary prostate malignancies and carried a poor prognosis. Early diagnosis and surgical resection with curative intent offer patients the best chance of survival.
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