胃癌是源自胃黏膜上皮的恶性肿瘤,占胃恶性肿瘤的95%,严重影响着人类的健康。目前,胃癌缺乏有效的普查方法,大多数患者就诊时已经属中晚期,难以治愈。因此,早期诊断对胃癌患者有着重要的临床意义。随着免疫学和分子生物学等的不断发展,血清肿瘤标志物在肿瘤的普查、诊断、判断预后、评价疗效 Gastric cancer is a malignant tumor derived from gastric mucosal epithelium, accounting for 95% of gastric malignancies, which seriously affects human health. At present, gastric cancer lacks an effective census method, and most of the patients are already in advanced stages of treatment, which is difficult to cure. Therefore, early diagnosis of gastric cancer patients has an important clinical significance. With the continuous development of immunology and molecular biology, serum tumor markers in cancer screening, diagnosis, prognosis, evaluation of the efficacy