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Urology. 2013 Jul;82(1):160-5. doi: 10.1016/j.urology.2013.01.034. Epub 2013 Apr 16.

Twenty-five cases of adult prostate sarcoma treated at a high-volume institution from 1989 to 2009.

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1
Department of Urology, Sichuan University, Chengdu, Sichuan, People's Republic of China.

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.

PMID:
23601444
DOI:
10.1016/j.urology.2013.01.034
[Indexed for MEDLINE]
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