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DANE In 1993 the US Environmental Protection Agency (EPA) reported that passive smoking is responsible for approximately 3000 lung cancer deaths a year in nonsmokers in the United States. This conclusion was based on results from 30 epidemiologic studies conducted worldwide, including 11 trials in the United States.The investigators analyzed data from 653 women with histologically confirmed lung cancer and 1253 randomly selected female controls. They found that passive smoking significantly increased the risk of lung cancer (pulmonary adenocarcinoma of the lung as well as cancers of other histopathologic cell types). Excessive Risk of Lung Cancer from Passive Exposure to Cigarette Smoke The excess risk was 24% for household exposure to tobacco smoke, 39% for workplace exposzure, and 50% for exposure in social settings. Overall, the risk of lung cancer increased with increasing duration of exposure. No significant association was found between exposure to household tobacco smoke during childhood alone from mother, father, or other household membe r, but women who were exposed during childhood and during adult life had a higher relative risk than women exposed. . At the highest level of adult exposure in women who were also exposed during childhood, the risk of cancer was more than three times the risk in nonexposed women. Tapering nicotine content is not difficult to do. Tobacco companies have already succeeded in altering the nicotine content of the tobacco plant, although it seemslikely that their goal is high-nicotine rather than low-nicotine cigarettes. �British-owned Brown & Williamson Tobacco Corporation used genetic engineering to produce a tobacco plant with twice the nicotine content of ordinary tobacco. Company chairman Thomas Sandefur was called before a House health and environment subcommittee to respond to allegations that his company deliberately manipulated levels of tobacco in certain brands of cigarettes.� FIND MORE AT: http://www.mediconsult.com/associations/alcase/lungcancer/types.html you have just read some of the information I have found on the internet, the adress is above. this is mostly on second hand smoke. now I will get into the LUNG CANCER detail. Lung cancer is usually classified as either small cell or nonsmall cell, based upon the appearance of the cells under a microscope. 1. Small cell carcinoma: usualy starts in one of the larger breathing tubes, grows fairly rapidly. 2. Epidermoid carcinoma usually starts in one of the larger breathing tubes and usually grows relatively slowly. These tumors may be very small or quite large. 3. Some names of more uncommen names are carcinoid, cylindroma, mucoepidermoid ,and malignant mesothelioma. diagnosis: http://www.erinet.com/fnadoc/lung.htm How is lung cancer diagnosed? Many patients get a chest x-ray for one reason or another. A mass is noted which then is evaluated by other tests. Usually, scan test follows which better defines the abnormality. All cancer diagnoses should and usually do have a tissue diagnosis. A physician gets a little piece of tissue from the abnormal area and a pathologist determines if it is cancer or not. The two most common methods of getting a piece of the mass is bronchoscopy or fine needle aspiration biopsy under radiologic guidance. Once cancer is diagnosed, an appropriatetreatment must be determined. http://www.erinet.com/fnadoc/lung.htm YOU CAN QUIT SMOKEING! Lung cancer is sometimes picked up early, but our best treatment is prevention. Not smoking and stopping smoking are the two most important things we can do for ourselves and our loved ones. The chart shows the benefit of stopping smoking. BIBLIOGRAPHY: 1. INTERNET http://pharminfo.com/pubs/msb/sec_smke.htmL 2.INTERNET http://fortunecity.com/tinpan/dredlock/206 3.INTERNET http://www.exite.com/search/lungcancer 4. book :lung cancer W.B. Mcknight, THE MEDICAL ENCYCLOPEDIA 1968 5. INTERNEThttp://www.erinet.com/fnadoc/lung.htm 6.INTERNET http://www.erinet.com/fnadoc/images/pathol~1/lungca~1/treat.htm | ||||||||||||||||
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