论文部分内容阅读
一、地理分布 (一)世界鼻咽癌的发病率 鼻咽癌最常见于中国南方(如广东、广西、湖南、福建、江西等省)和东南亚的一些国家。东北非和地中海周围的一些国家也较常见。欧洲、美洲、大洋洲和拉美国家则很少见。以瑞典为例,其年发病率I男性为0.6/10万,女性为0.3/10万,占全身
First, the geographical distribution (A) the incidence of nasopharyngeal cancer in the world Nasopharyngeal carcinoma is most common in southern China (such as Guangdong, Guangxi, Hunan, Fujian, Jiangxi and other provinces) and some countries in Southeast Asia. Some countries around Northeast Africa and the Mediterranean are also more common. Europe, the Americas, Oceania and Latin American countries are rare. In Sweden, for example, the annual incidence of I males is 0.6 / 100,000 and females 0.3 / 100,000, accounting for the entire body