Prostatic stromal sarcoma in a young adult: a case report.

Prostate stromal sarcoma is quite rare, comprising only 0.1-0.2% of all prostate cancers. Here, we report one case of prostate stromal sarcoma in a 38-year-old man. Initially, the patient suffered from lower urinary tract symptoms, and intravenous pyelography showed a larger filling defect in the bladder. Transrectal ultrasound showed a huge heterogenous mass between the bladder and rectum. Abdominal computed tomography revealed prostate tumor with local invasion. Radical cystoprostatectomy with ileal conduit was performed; pathology revealed high-grade prostate stromal sarcoma with invasion to the right seminal vesicle and urethra. This article describes the pathology and immunohistrochemical features of this case and briefly reviews the literature.