鼻咽部因其位置隐蔽,解剖结构特殊,腔道狭窄,检查困难,病灶不易发现,鼻咽癌早期典型的症状如回吸性血涕、耳闷等症状不易被重视,微小病灶在后鼻咽镜下不易窥清,故易漏诊。应用鼻内镜可使鼻咽部新生物在鼻内镜下发现率增加,从而使得鼻咽癌的早期诊断率得到提高。现对本科在鼻内 Nasopharynx because of its hidden position, special anatomical structure, narrow stenosis, check difficult, difficult to find the lesion, the typical early symptoms of nasopharyngeal carcinoma such as back to the bloody discharge, ear bored and other symptoms not easy to be taken seriously, the tiny lesions in the nose Pharyngoscopy is not easy to peep clear, it is easy to missed diagnosis. The use of endoscopic nasopharyngeal neoplasms can increase the detection rate of nasopharyngeal endoscopy, making early diagnosis of nasopharyngeal carcinoma was improved. Now undergraduate in the nose