食管癌是我国最常见的恶性肿瘤之一,对人民的生命和健康危害极大。食管癌具有显著的地区性分布特点,在发展中国家和经济状况较差的人群中高发。全世界近90%食管癌病例发生在位于亚洲、非洲和拉丁美洲的发展中国家。据研究资料估计,我国食管癌发病数约占全世界食管癌发病总数的70%,属于食管癌的高发区,其中河南林州市是世界上食管癌最高发的地区。 Esophageal cancer is one of the most common malignant tumors in our country, with great harm to people’s life and health. Esophageal cancer has a significant regional distribution, high incidence in developing countries and poor people in economic conditions. Nearly 90% of esophageal cancer cases in the world occur in developing countries in Asia, Africa and Latin America. According to research data estimated that the incidence of esophageal cancer in China accounts for about 70% of the total incidence of esophageal cancer in the world, belonging to the high incidence of esophageal cancer, of which Linzhou City, Henan Province is the highest incidence of esophageal cancer in the world.