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In this report we describe a case of late relapse non-seminomatous germ cell tumor eradicated after 9 years of initial onset. A 20-year-old man complaining of recent aches, vomiting and headaches was diagnosed with right testicular tumor with solitary brain and bilateral lung metastases. At presentation, human chorionic gonadotropin (HCG) was elevated to 22,000 mIU/ml, and alpha-fetoprotein to 79 ng/ml. A right high orchiectomy was performed, followed by a right occipital osteoplastic craniotomy due to the presence of left hemiplesia and anisocoria prior to chemotherapy. Pathologically, the tumors were embryonal carcinoma and yolk sac tumor. The patient received 5 cycles of cisplatin-based PEP chemotherapy (cisplatin, etoposide and peplomycin) after which all the tumor markers fell to within the normal range. The remaining right lung tumor was removed surgically and the remnant lesion was found to be scar tissue. Four years after initial therapy, elevated serum HCG levels were detected. The tumor metastasis showed only HCG elevation responsive to chemotherapy each time followed by relapse and undetectable with all kinds of imaging examinations for 5 years. Finally when the tumor became chemorefractory, conventional computed tomography scan on bone window detected the occult tumor in L4 corporal body. After radiation therapy the tumor was removed by total spondylectomy and there was no viable tumor cells in the specimen pathologically. HCG fell to within normal range according to its half life period after the operation and there is no relapse of HCG after 18 months follow up. CT bone window photography may be sometimes useful to detect occult bone metastasis and salvage surgery combined with radiation therapy may be worth trying in patients with chemorefractory non-seminomatous germ cell tumors.

OCCULT LUMBAR VERTEBRAL BODY METASTASIS OF NON-SEMINOMATOUS GERM CELL TUMOR ERADICATED BY RADIATION AND SALVAGE SURGERY 9 YEARS AFTER INITIAL ONSET