Lung Cancer
Lung cancer like all other cancers, outcomes from abnormality in the body's fundamental unit of life, the cell. Normally, the body maintains a system checks and balances on cell growth so that cells divide to produce new cells only when needed. Interruption in the balance of this system causes an uncontrolled division of cells that ultimately forms a mass known as a tumor. Any of the tissues in the lung can become cancer, but the bulk commonly, lung cancer comes from the lining of the bronchi. Since this disease tends to spread very early in its course, it's very life-threatening and one of the the bulk difficult cancers to treat. Although it can spread to any organ in the body, the adrenal glands, liver, brain, and bone, are the the bulk common lung cancer metastases. Recent research point to the factor with the greatest impact on risk of lung cancer is long-term exposure to sniffed carcinogens. Most average of which is exposure to tobacco smoke. The occurrence of lung cancer is strongly linked with cigarette smoking, with about 90% of the disease arising as a result of tobacco used. The numbers of cigarettes smoke over time enhances the risk of lung cancer. Among those who smoke two or more packs of cigarettes per day, one in seven will die of lung cancer. Passive smoking or inhalation of tobacco smoke from other smokers sharing or working quarters, is also an established risk factor for the development of the disease. Non-smokers who reside with a smoker have 24% increase risk for developing lung cancer compared with non-smokers. In the U.S. an estimated 3,000 lung cancer deaths that eventuate each year are attributed to passive smoking. Exposure to asbestos fiber, silicate fibers that can persist for a lifetime in lung tissue following exposure to asbestos, also enhances the risk of the disease. Radon gas is also a known cause of the disease with an estimated 12% of lung cancer deaths. Familial predisposition or genetic susceptibility is also one cause of lung cancer, studies have featured that the disease is more likely to eventuate I n both smoking and non-smoking relatives of those who have had lung cancer than in the normal population. The presence of certain lung diseases, particularly incessant obstructive pulmonary disease (COPD) is related with a slightly increased risk for development of lung cancer. Air pollution from vehicles, industry, and power plants, can raise the possibility of developing the disease in laid bare individuals. What are the signs of lung cancer? The early stages of the disease may not have any symptoms, but as the tumor grows in size, it can produce a variety of symptoms that includes: * cough (especially one that doesn't go away or gets worse in character) * chest pain * shortness of breath * coughing up blood or bloody phlegm * new onset hoarseness or wheezing * recurrent troubles with pneumonia or bronchitis * weight loss * loss of appetite * weariness * bone pain * dizziness or double vision * numbness or tingling in your arms or legs * turning yellow (jaundice) Treatment of lung cancer can involve a combination of surgery, chemotherapy, and radiation therapy as well as newer experimental methods, but prevention of the development of the disease via smoking cessation is the bulk important. |
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