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胃癌是我国常见的恶性肿瘤之一,占我国消化道恶性肿瘤第一位,胃癌发病年龄以40~60岁多见,男女比例约为3∶1。胃癌是慢性疾病,发病过程漫长且复杂,其发病原因不明,目前没有任何单一因素被证实是胃癌的直接病因,可能与多种因素,如外界环境、精神、生活习惯、饮食、遗传、幽门螺杆菌感染及胃慢性疾病(如慢性萎缩性胃炎、胃黏膜异形增生和肠上皮化生、胃息肉、胃溃疡)等因素有关。胃癌可发生在胃的任何部位,最多见于胃窦部,其次为胃小弯,再其次为贲门。根据胃癌的大体形态及癌组织浸润深度不同,将胃癌
Gastric cancer is one of the common malignant tumors in our country, accounting for the first of malignant tumors of the digestive tract in our country. The age of onset of gastric cancer is more common in 40-60 years old. The ratio of male to female is about 3: 1. Gastric cancer is a chronic disease with long and complicated pathogenesis. The cause of the disease is unknown. There is no single factor that has been proven to be the direct cause of gastric cancer. Gastric cancer may be related to various factors such as the external environment, spirit, lifestyle, diet, genetics, Bacterial infection and chronic gastric diseases (such as chronic atrophic gastritis, gastric mucosal dysplasia and intestinal metaplasia, gastric polyps, gastric ulcer) and other factors. Gastric cancer can occur in any part of the stomach, most found in the antrum, followed by gastric curvature, followed by the cardia. According to the general shape of gastric cancer and depth of invasion of cancer tissue, gastric cancer