随着１９８８年Ｃｈｏｏ等报道发现一种新的肝炎病毒———丙型肝炎病毒（ＨＣＶ）以来 ,越来越多的流行病学资料证实ＨＣＶ的存在 ,及其与原发性肝癌（ＰＨＣ）存在因果关系。延边地区是肝癌的较高发区 ,朝鲜族肝癌标化的死亡率显著高于当地的汉族［１］ ,并高于全国的平均水 With the discovery of a new hepatitis C virus (HCV) by Choo et al in 1988, more and more epidemiological data have confirmed the existence of HCV and its relationship with primary liver cancer (PHC) There is a causal relationship. The Yanbian area is a high incidence area of ​​liver cancer, and the mortality rate of Korean liver cancer is markedly higher than that of the local Han [1], and higher than the national average water