2例睾丸的精原细胞瘤患者在睾丸切除及放疗后分别于30年和9年出现远期转移。1例转移至腹膜后淋巴结和肺,1例转移至乙状结肠和左输尿管。为此进行了文献复习。精原细胞瘤的远期转移是相当罕见的。在大的病组中,初次治疗结束2年后出现转移者不足10%。通常远期转移是由于患者顺应性差或未发现原发肿瘤的非精原细胞结构,或放射野不充分等,即初次治疗不足。N_1期患者复发危险约为16%,复发常在放射野以外部位。文献报道无癌间隔最长的1例为去睾31 Two patients with testicular seminoma had a long-term metastasis after testicular resection and radiotherapy at 30 and 9 years, respectively. One patient was transferred to retroperitoneal lymph nodes and lungs, and one patient was transferred to the sigmoid colon and the left ureter. A review of the literature was conducted for this purpose. Long-term metastasis of seminoma is quite rare. In the large disease group, less than 10% of metastases occurred after 2 years of initial treatment. Usually the long-term metastasis is due to poor patient compliance or non-spermatoglycan structure in which the primary tumor is not found, or inadequate radiation field, ie insufficient primary treatment. The risk of relapse in N1 patients is approximately 16%, and recurrences often occur outside the radiation field. Reported in the literature 1 case with longest cancer-free interval is decerebrate 31