目的：探讨CD117在睾丸生殖细胞肿瘤中的表达及其在鉴别睾丸精原细胞瘤和非精原细胞瘤中的价值和生物学意义。

Objective:To evaluate the expression of CD117 in human testicular germ cell tumors and its value in the differential diagnosis of seminoma and nonseminoma.

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结论MMP - 2、MMP - 9、TIMP - 1在人睾丸精原细胞瘤的浸润转移过程中起重要作用，有可能成为估计预后的指标之一。

Conclusion MMP-2, MMP-9 and TIMP-1 play an important role in the infiltrative metastasis of seminoma and may act as one of the factors to evaluate prognosis.

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