本文比较分析了１８例神经母细胞瘤的ＤＮＡ含量、Ｎ－ｍｙｃ基因扩增、临床分期、原发部位等因素与预后的关系。结果表明，有Ｎ－ｍｙｃ基因扩增的死亡率（７／１０）明显高于无扩增的（１／８）；ＤＮＡ、含量增高与肿瘤的恶性度成正比；临床分期与Ｎ－ｍｙｃ基因扩增情况相结合与病死率的关系极为密切。 This article comparative analysis of 18 cases of neuroblastoma DNA content, N-myc gene amplification, clinical stage, the primary site and other factors and prognosis. The results showed that the mortality rate of N-myc gene amplification (7/10) was significantly higher than that of non-amplification (1/8). The DNA content was positively correlated with the malignancy of the tumor. The clinical stage was related to the N-myc gene The combination of amplification and mortality is extremely close.