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鼻咽癌是指发生于鼻咽部粘膜的恶性肿瘤,常发生于鼻咽顶后壁的顶部,其次为侧壁,发生于前壁及底壁者极为少见,发病年龄大多为中年人,也有青少年患者。鼻咽癌的大体形态分为5种,即结节型、菜花型、粘膜下型、侵润型和溃疡型。鼻咽癌患者虽然见于世界各地,但世界大部分地区发病率较低,一般在1/100000以下。鼻咽癌的发病率以中国的南方较高,如广西、广东、湖南等地,就全国而言,鼻咽癌的发
Nasopharyngeal carcinoma refers to the nasopharyngeal mucosa of malignant tumors, often occurs in the top of the nasopharyngeal posterior wall, followed by the side wall, occurred in the anterior wall and the bottom wall are extremely rare, most of the age of onset for middle-aged, There are also teen patients. The general morphology of nasopharyngeal carcinoma is divided into five kinds, namely, nodular, cauliflower-type, submucosal type, invasion type and ulcer type. Although found in patients with nasopharyngeal carcinoma around the world, but the incidence in most parts of the world is low, generally less than 1/100000. The incidence of nasopharyngeal cancer in China's southern higher, such as Guangxi, Guangdong, Hunan and other places, the country, nasopharyngeal hair