[Overview]
Nose pharynx cancer is former hair at the malignant tumor with epithelial coverture of nose pharynx mucous membrane. Nose pharynx cancer is inchoate Chang Moming shows a symptom, usually blood of common n&v snuffle, tears or time shrink sexual blood tears, tinnitus and have a headache etc, terminal often have neck lymph node enlargement and viscera move. Nose pharynx cancer is one of our country's common malignant tumor, malign become quite tall, live naturally time is on average 18. 7 months, disease concealments since, inchoate and not easy discovery.
Nose pharynx cancer comes on have apparent phyletic easy sensibility, regional and phyletic and familial collect a gender, incidence of a disease of world major area is inferior, be in commonly 1 ／ 100 thousand the following, caucasian is scarce, good hair at person of the yellow race, you Yizhong state is southern 5 province (Guangdong, Guangxi, Fujian, Hunan, Jiangxi) incidence of a disease is higher, year incidence of a disease amounts to 10 ～ 25 ／ 100 thousand, of the men and women than be 2 ～ 3: 1, children period is scarce, as the growth of the age, heighten of incidence of a disease, 30 ～ are 60 years old come on fastigium. Mortality of nose pharynx cancer also with south 5 provinces are highest, among them Guangdong platoon is in the first, 12. 46 ／ 100 thousand. 20 centuries 90 time and twice contrast of data of national death investigation discovers 70 time, chinese regulation drops 34. 62 ％ , and world regulation drops 33. 7 ％ . The female is more apparent than the male; Female maximum drops 36. 77 ％ , the man declines 5. 21 ％ . The mortality of patient of cancer of countrywide male nose pharynx occupies the 7th of all and malignant tumor, female criterion platoon is in the 9th.
The ill name of nose pharynx cancer is done not have in document of ancient time of doctor of traditional Chinese medicine,
[The pathogeny learns]
Epidemiology investigates the pathogeny that puts forward nose pharynx cancer to may concern with following element:
① EB virus is affected.
② environment and food: Environmental element also is a kind of cause that causes nose pharynx cancer. Be in Guangdong, inferior hair area is the microelement nickel content in the rice that investigation discovers to nose pharynx cancer sends an area high and water tall. In the hair of patient of nose pharynx cancer, nickel content also tall. Animal experiment makes clear, nickel can be promoted inferior saltpetre amine causes nose pharynx cancer. Also having reportorial edible salty fish and souse food is Chinese south element of tall danger of nose pharynx cancer, and with the age that eats salty fish, the deadline of edible, forehead is spent reach cook method to concern.
③ genetic element: Person of nose pharynx carninomatosis is gutty a group of things with common features reach familial collect a phenomenon, if live in the Chinese southern offspring of other country to still carrying the incidence of a disease of tall nose pharynx cancer, this hints nose pharynx cancer may be transmissibility disease.