AFP and hepatocellular carcinoma: In order to reveal the median survival time differences between recurrence and non recurrence group in HCC with the high preoperative level AFP, exclude 115 cases with normal preoperative AFP level (21.9%, HCC patients with normal AFP), The 410 patients with HCC and high AFP levels before RFA treatment were categorized into the recurrence (348cases) and no recurrence groups (62 cases).