Departmental Bulletin Paper エトポシド,カルボプラチン療法が有効であった前立腺小細胞癌の2例
Etoposide and Carboplatin Effective for Treatment of Small Cell Carcinoma of Prostate : A Report of Two Cases

弓場, 覚  ,  朝倉, 寿久  ,  岡田, 宜之  ,  佐藤, 元孝  ,  任, 幹夫  ,  辻畑, 正雄

62 ( 12 )  , pp.639 - 645 , 2016-12 , 泌尿器科紀要刊行会
Case 1 : A 76-year-old man consulted a physician because of pollakisuria, decline of urinary stream. A high level of serum prostate specific antigen (PSA) was detected and he came to our hospital. He was diagnosed to have prostate cancer, cT3aN0M1b, and was treated with combined androgen blockage (CAB). Two years and nine months later, postrenal failure appeared and serum level of neuron-specific enolase (NSE) was 162 ng/ml. We performed re-biopsy of prostate, and pathological examination indicated small cell carcinoma of the prostate. We treated him with combination chemotherapy comprised of etoposide and carboplatin, which was effective. Serum level of NSE was decreased and computed tomography showed reduction of the prostate volume and metastasis. Case 2 : An 84-year-old man was treated at a hospital with radiation therapy and CAB, because of prostate cancer. He came to our hospital with bladder tamponade. We performed transurethral coagulation and transurethral biopsy. Pathologically it proved to be small cell carcinoma of the prostate. The stage was cT4N1M1a, NSE and pro-gastrin-releasing peptide (Pro-GRP) levels were high. The same treatment given to him as in case 1, effectively decreased the metastasis and the level of serum NSE.

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