消化系统肿瘤的主要治疗方法是单独外科手术,或手术加放射治疗。化学治疗只用于不能切除的原发病灶或有播散的病例,化疗也和其他方法联合运用于晚期病例。目前,多数胃癌病人当诊断明确时已不能外科手术,努力争取早期诊断,采用各种方法普查,如胃细胞学、X 线透视,仅取得有限的成绩,在胃癌发病率高的国家,如日本现已广泛 The main treatment for digestive system tumors is surgery alone, or surgery plus radiation therapy. Chemotherapy is only used for unresectable primary lesions or disseminated cases. Chemotherapy is also used in combination with other methods in advanced cases. At present, most patients with gastric cancer have been unable to undergo surgical operations when diagnosed clearly, and strive to obtain early diagnosis. Various methods such as gastric cytology and X-ray fluoroscopic examination have achieved only limited results in countries with high incidence of gastric cancer, such as Japan. Now widely