胃癌在全世界很多国家的发病率都很高,其病死率高居肿瘤死亡原因第2位,全球每年死于胃癌约有700000例[1],在我国,每天约有30万新发病例,占恶性肿瘤发病的21.66%,每年有24.4万人死于胃癌,占恶性肿瘤死亡的21.99%,死亡人数占各种肿瘤之首,因除日本外大多数国家由于没有筛查,早期 The incidence of gastric cancer in many countries in the world are high, the highest mortality rate of the second cause of cancer death, the global annual death of gastric cancer is about 700000 cases [1], in our country, about 300,000 new cases a day, accounting for The incidence of malignant tumors 21.66%, 24.4 million people die of gastric cancer each year, accounting for 21.99% of malignant tumor deaths, the death toll accounted for a variety of tumors in the first, because most countries except Japan outside the absence of screening, early