对肝癌进行早期诊断和手术治疗,可以提高5年存活率。目前,对早期诊断肝癌仍缺少有效的方法。AFP 和 CEA 一直被用来诊断原发或继发性肝癌,但上述两种物质易受某些良性疾患及大量吸烟等因素的影响。最近 Holmgren 等发现一种癌相关抗原 CA-50,它是在细胞恶变时所产生的一种表面糖蛋白。用放射 Early diagnosis and surgical treatment of liver cancer can increase the 5-year survival rate. At present, there is still no effective method for early diagnosis of liver cancer. AFP and CEA have been used to diagnose primary or secondary liver cancer, but the above two substances are susceptible to certain benign diseases and heavy smoking. Holmgren et al. recently discovered a cancer-associated antigen, CA-50, which is a surface glycoprotein produced when cells die. Radiation