精巣腫瘍脳転移の2例

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During the last 8 years, 70 cases of testicular tumor were treated in our department. Of them 2 cases had brain metastasis. Case 1; A 37-year-old male was admitted with the chief complaint of cough. Retroperitoneal lymph node and lung metastases were discovered (stage IIIB, pT4aN1M1). Resected right testis was diagnosed as embryonal carcinoma, teratoma and STGC histopathologically. After 3 courses of PVB (cisplatinum, vincristine, bleomycin) chemotherapy right hemiplegia occurred and computerized tomographic (CT) scan revealed brain metastasis. His general condition degraded rapidly and he died of brain herniation 3 months after orchiectomy. Case 2; A 32-year-old male was admitted because of right testicular swelling and lung metastases (stage IIIB, pTiN0M1). Pathological examination revealed embryonal carcinoma, yolk sac tumor and teratoma. After 4 courses of chemotherapy with cisplatinum (CDDP), vincristine, methotrexate, peplomycin, and etoposide all lung metastases were disappeared. A few months later left hemiplegia by brain metastasis appeared suddenly. Four additional courses of high dose chemotherapy and resection of brain metastasis was performed. Complete remission continued for 13 months. The prognosis of testicular tumor with brain metastasis was very poor. During the last 8 years, 21 cases of testicular tumor with brain metastasis were reported in the Japanese literature. A follow-up study of prognosis in the literature was performed and discussed.

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栃本真人
新座志木中央病院泌尿器科

精巣腫瘍脳転移の2例

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