近年来已有多种肿瘤标志应用于癌的诊断,但其特异性令人满意者为数不多。作者对同一病例同时测定多种肿瘤标志并综合分析,以提高胃癌、结肠癌恶性程度及术后复发的诊断率。研究对象为70例胃癌患者、60例结肠癌患者,术前及术后一定时间同时测定癌胚抗原 In recent years, many tumor markers have been used in the diagnosis of cancer, but few of them have satisfactory specificity. The authors simultaneously determined multiple tumor markers in the same case and analyzed them comprehensively to improve the diagnosis of gastric cancer, colon cancer, and postoperative recurrence. The subjects were 70 patients with gastric cancer and 60 patients with colon cancer. Simultaneous determination of carcinoembryonic antigen was performed before and after surgery.