原发性肝癌是世界范围内发病率最高的恶性肿瘤之一,每年约有10 0万以上的人新患此病〔1〕。它也是我国最常见且恶性程度最高的肿瘤之一。目前手术切除仍是治疗原发性肝癌的首选方法。然而肝癌根治性切除后病人的5年复发率高达6 1 5 % ,小肝癌的术后复发率为4 3 5 % 〔2〕,这 Primary liver cancer is the world’s highest incidence of malignant tumors, each year about 100,000 people suffering from the disease [1]. It is also one of the most common and most malignant tumors in our country. Surgical resection is still the preferred method of treatment of primary liver cancer. However, after radical resection of liver cancer patients 5-year recurrence rate as high as 61.5%, small hepatocellular carcinoma postoperative recurrence rate was 43.5% 〔2〕, which