鼻咽癌是我国高发恶性肿瘤之一,而我国华南地区则是世界上鼻咽癌的高发区。鼻咽癌多原发于鼻咽部的咽隐窝及顶前壁,由于鼻咽解剖位置深在,解剖结构复杂,鼻咽癌的早期症状不典型。其病理类型主要为低分化鳞状细胞癌,因此早期易出现颈部淋巴结转移及远处转移。虽然鼻咽癌放疗和化 Nasopharyngeal carcinoma is one of the high incidence of malignant tumors in our country, while southern China is the highest incidence of nasopharyngeal carcinoma in the world. Nasopharyngeal carcinoma and more in the nasopharynx pharyngeal recess and the anterior wall, due to deep nasopharyngeal anatomy, anatomical structure, the early symptoms of nasopharyngeal carcinoma is not typical. The main pathological type of poorly differentiated squamous cell carcinoma, early prone to cervical lymph node metastasis and distant metastasis. Although nasopharyngeal cancer radiotherapy and chemotherapy