NPC pathogenic factors which

Nasopharyngeal cancer etiology is not yet very clear, as the nose Kong nasopharynx, oral the same, susceptible to the impact of the external environment, such as long-term exposure to certain chemical carcinogens (pesticides, benzene coal tar, oil and tobacco, etc. - ), which directly stimulate nasal carcinogenic substances, such as Cantonese from time to eat like salted fish, such as marinated meats. And nasopharyngeal carcinoma in recent years found a herpes virus (EB virus) is closely related to Xiao, it is because in most patients with nasopharyngeal carcinoma patients with serum containing high titer of anti-EB virus antibodies. Its carcinogenic mechanism is not clear. According to a survey of genetic factors in the incidence rate of nasopharyngeal carcinoma, plays a certain role, and some stem from the brothers, sisters or parents with nasopharyngeal carcinoma, also twin brothers have been suffering from nasopharyngeal carcinoma.