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NPC is a malignant tumor of the nasopharynx, in many countries and regions have had the disease, the overall incidence rate is not high, but higher prevalence in Southeast Asia. NPC is one of common malignant tumors in China.

Nasopharyngeal carcinoma occur in the nasal cavity and nasopharynx between oropharyngeal to the top of the most common side wall, anterior second, at least the bottom. Anatomical position of NPC hidden variable symptoms and signs, easily overlooked patients, medical personnel will be misdiagnosed.

The main symptoms of nasopharyngeal carcinoma with cervical lymph node swelling and epistaxis, nasal congestion, headache, tinnitus, deafness, aspiration of blood aldicarb, ptosis, facial paralysis, difficulty swallowing, choking and ingestion of anti-cranial nerve by a variety of damage performance. Clinical symptoms related to nasopharyngeal carcinoma lot, but one of the following symptoms occur, patients should be alert to the possibility of nasopharyngeal carcinoma.

● Recent unexplained tinnitus, ear fullness, earache or hearing loss, especially in single-ear disease, and the rapid progress of the above symptoms, general treatment ineffective.

● The recent neck mass, especially in the deep mass rapid growth, fixation, the surface is not smooth, with mild tenderness, inflammation or tuberculosis treatment by invalid.

● Suffering from the recent unilateral catarrhal otitis media, especially the middle ear effusion are more reasonable time after treatment, no significant improvement, and the symptoms continued to increase.

● The recent nasal obstruction, bloody nose, especially the morning after aspiration of bright red spit bloody nasal discharge or hemoptysis, by general treatment ineffective.

● Recent unexplained persistent, intractable headache side, and gradually increase, oral analgesic invalid.

● The recent unexplained cranial nerve lesions, showed limited eye movements, not outreach, as well as headache, swallowing negative, hoarseness, cough choke water, move the shoulders and weak.

● Recent than the local lesions caused by monocular discomfort, watery eyes, and astringent pain, vision loss, diplopia, eye outward at the top of the shift, and symptoms such as exophthalmos.

● Recently suffered from polymyositis or dermatomyositis, there rise inconvenience, difficulty swallowing, lack of facial expression and other symptoms, and have to face muscles, muscles around the neck and throat muscles of diseases based clinical manifestations