Nasopharyngeal carcinoma is a common malignant tumor of the head and face. The early symptoms are not obvious. The diagnosis of nasopharyngeal carcinoma cannot be determined solely by its own symptoms. Laboratory and imaging examinations are the main basis for diagnosing nasopharyngeal carcinoma. The following is a brief introduction to the causes of nasopharyngeal carcinoma. Epstein-Barr virus (EBV) infection Studies have shown that EBV infection is closely related to the occurrence of nasopharyngeal carcinoma, and EBV is present in most keratinizing squamous cell carcinomas and almost all undifferentiated squamous cell carcinomas. Chemical factors Environmental factors are also a cause of nasopharyngeal cancer. The content of trace element nickel in rice and water in areas with high incidence of nasopharyngeal cancer is higher than that in areas with low incidence. The content of nickel in the hair of nasopharyngeal cancer patients is also higher than that in areas with low incidence. Animal experiments show that nickel can promote nitrosamines to induce nasopharyngeal cancer. People who are easily exposed to formaldehyde in life are also prone to nasopharyngeal cancer. There are also reports that eating salted fish and pickled food is a high-risk factor for nasopharyngeal cancer, and it is also related to the age of eating salted fish, the period of consumption and the cooking method. Many carcinogenic chemicals such as nitrosamines, polycyclic aromatic hydrocarbons and trace elements such as nickel are related to the onset of the disease. Genetic factors There is a racial and familial clustering of nasopharyngeal carcinoma patients. The above is the knowledge about nasopharyngeal cancer. Experts suggest: If you have symptoms of disease, you should go to a regular hospital for treatment in time to avoid delaying the disease and causing serious consequences. If you have other questions, please consult our online experts or call for consultation. Believe in miracles and wish you health, happiness and joy! Nasopharyngeal cancer http://www..com.cn/zhongliu/bya/ |
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