从1974年起,我们曾对肝癌普查发现的低浓度AFP阳性对象(以下简称低甲胎对象)进行较系统的随访和预防性治疗。初步结果显示这些对象的肝癌发生率明显高于普通肝病人群,而预防性治疗对降低肝癌发病率似有一定作用。本文介绍低甲胎对象经较长时间随访后的转归和随访转癌病例 Since 1974, we have performed systematic follow-up and preventive treatment of low-concentration AFP-positive subjects (hereinafter referred to as low-yield subjects) found in liver cancer screening. The preliminary results showed that the incidence of liver cancer in these subjects was significantly higher than that of the general liver patients, and preventive treatment seemed to have a certain effect on reducing the incidence of liver cancer. This article describes the outcome of follow-up after a long period of follow-up for patients with low alpha fetuses and follow-up cancer cases