时下,像胃癌之类的肿瘤,患者的发病年龄越来越小,但早期发现率却很低。其原因有三,一是绝大多数早期胃癌患者没有任何症状,即使部分患者已处于胃癌进展期,也缺乏胃癌特异性的临床症状与体征;二是早期胃癌缺乏既具有高灵敏度又具有特异性的肿瘤标记物;三是胃镜检查具有一定的不舒适性,检查费用相对较高,而且在我国也没有被列入常规体检的范围。 Nowadays, tumors such as gastric cancer are getting younger and younger, but their early detection rate is very low. There are three reasons for this. First, most patients with early gastric cancer do not have any symptoms, even though some patients are already in advanced stages of gastric cancer. They also lack specific clinical symptoms and signs of gastric cancer. Second, early gastric cancer lacks both high sensitivity and specificity Tumor markers; Third, gastroscopy has some discomfort, the cost of examination is relatively high, but also in our country has not been included in the scope of routine physical examination.