| primary bronchogenic carcinoma simply call lung cancer,that means the tumor primarily in tunica mucosa bronchiorum and alveoli of lung and also one of the most common maligant tumor.in the recent half a century,the morbidity and case fatality rate of lung cancer are drasticly increaseing in every countary.especially in the developed country in industry aspects,such as British,America,germany,Canada,etc.The mortality rate of lung cancer is already the first place in male tumor.however ,the same situation take place in some industry city and mining district in our country.for example:Caucasian malesLung cancer is the leading cause of cancer deaths in shanghai since 1978. most of the patients are male,ratio of male and female is 4～8 : 1.but it is deflated in the recent years.morbidityincreased with age,special in the age of 50-60.The mortality rate is very high although diease has be treated by all kinds of way.everage survival rate of 5 years less than 10%.For improve surival rate earlier period Screening had became hot research point.tumor markers existed in tissue,cell,blood or body fluid,can be detected by biochemistry,immunology or molecular biology technique,at present radioimmunassay is the commonest method.so early diagnosis and early treatment are very importent.suported exam such as A standard chest X-ray,Sputum cytology,Magnetic resonance imaging (MRI),Positron emission tomography (PET) scan provide a usefull help.recently, the reseach of lung tumor markets had made progress.it do the favor not only therapeutic efficacy, prognosis and recurrence but also definte cancer that can not be checkup by imaging.ProstaglandinE2 One of a number of hormone-like substances that participate in a wide range of body functions such as the contraction and... |
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