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肝癌是世界各国最常见的一种恶性肿瘤。肝癌的分布有地区性差别。亚洲和非洲是肝癌发病率较高的国家与地区。据估计亚非国家与地区肝癌新病人每年至少有2万5千例,其中又以东南亚国家与地区较高,而在澳大利亚,欧洲与北美一些国家肝癌的年新发病还不到5/10万,一般认为人口众多,生活与卫生条件较差,是肝癌发病率较高的主要原因。但近年来肝癌的年新发病率在世界备国均有逐年上升的趋势,其确切原
Liver cancer is the most common malignancy in all countries in the world. There are regional differences in the distribution of HCC. Asia and Africa are countries and regions with high incidence of liver cancer. It is estimated that at least 25,000 new cases of liver cancer in Asian, African countries and regions each year, of which there are more countries and regions in Southeast Asia. In other countries in Australia, Europe and North America, annual incidence of liver cancer is less than 5 / 100,000 , Generally believed that a large population, poor living and hygiene conditions, is the main reason for the higher incidence of liver cancer. However, in recent years, the annual incidence of liver cancer in the world prepared countries have increased year by year, the exact original