鼻咽癌的好发部位是在鼻咽顶部及鼻咽侧壁,此处的粘膜上皮究竟为何种类型,文献报道不一。有人认为咽扁桃体平面以上为纤毛柱状上皮,以下为鳞状上皮,两者交界处为过渡上皮;另有人认为,鼻咽顶后壁,80％～90%为鳞状上皮,沿鼻咽的侧壁和顶壁处鳞状上皮与纤毛柱状上皮呈斑块状交错排列,其间有时见过渡型上皮小岛。 The main site of nasopharyngeal carcinoma is the top of the nasopharynx and nasopharyngeal wall, where the mucosal epithelium exactly what type of literature reported different. Some people think pharyngeal tonsils above the ciliated columnar epithelium, the following is squamous epithelium, the junction of the transitional epithelium; while others think that the nasopharyngeal posterior wall, 80% to 90% of squamous epithelium, along the side of the nasopharynx The squamous epithelium and the ciliated columnar epithelium in the wall and the top wall are staggered in plaque, and sometimes the transitional epithelium is seen.