胃癌是消化系统最常见的恶性肿瘤之一,手术根治性切除是治愈患者的唯一希望。但是人们发现对于病期较晚的患者单纯通过外科手术难以达到根治的目的 ,也不能明显提高中位生存期。近年来兴起的术前化疗(新辅助化疗)可使无限生长的肿瘤 Gastric cancer is one of the most common malignancies in the digestive system. Surgical radical resection is the only hope for curing patients. However, it has been found that for patients with a later stage of the disease, it is difficult to achieve the goal of radical cure only through surgery, nor can it significantly improve the median survival period. Pre-operative chemotherapy (neoadjuvant chemotherapy) has emerged in recent years to enable unlimited growth of tumors