Lung cancer - Essay Example

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A lung is the most important organ present in the respiratory system. The most important function of lungs is respiration. Any kind of lung disorder can retard or hamper this process and this in turn can prove fatal to human life. Lung cancer is one such disease that is most prevalent in the world…
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A lung is the most important organ present in the respiratory system. The most important function of lungs is respiration. Any kind of lung disorder can retard or hamper this process and this in turn can prove fatal to human life. Lung cancer is one such disease that is most prevalent in the world. There are various causes for lung cancer and the number of deaths in the world occurring due to this disease is increasing. It appears in various phases and spreads rapidly. There are preventive measures and appropriate treatment available to cure this disease.
Lung cancer is a malignant tumor that results due to the uncontrolled growth of tissues in the lungs. This disease is mainly caused due to the tobacco smoking. Cigarettes. cigars etc contain carcinogenic substances that lead to lung cancer. This disease is mainly caused due to the release of tobacco smoke in the air, which can also affect many of the non-smokers. The secondary cause of lung cancer is Radon gas. An individual can be exposed to Radon through soil, pipes, drains and other openings. Since this gas does not have smell, it has to be detected by measuring its level in the air. A combination of smoking and inhalation of radon gas can increase the risk of lung cancer. Asbestos and several carcinogenic agents such as uranium, arsenic vinyl chloride, nickel chromates, coal products, mustard gas, chloro-methyl ethers, gasoline and diesel exhaust can also cause this disease. Radiation treatment in case of other lung diseases such as tuberculosis, some types of Pneumonia and air pollution can also lead to this disease. A person having a family history of lung caner is also susceptible to it. [Overview: Lung Cancer. 2005].
It is estimates that about 163,510 people will die of lung cancer by the end of 2005. [Lung Cancer
. 2005]. Approximately 172,570 new cases of lung cancer are estimated to be diagnosed in the United States by 2005. [Lung Cancer. 2005].This disease is more prevalent in men that in women. The incidence of cancer varies with race and ethnicity and seems to be most prevalent among the blacks. [Cancer Incidence and Death Rates. 2000].
Lung cancer originates in the lungs and gradually damages the tissues around it. Eventually they disintegrate from the malignant tumor, enter the bloodstream and develop cancerous growth in other parts of the body. This process is called metastasis. This disease spreads within few months throughout the body. [Lung information. 2005]
Lung cancer appears in four phases. In the first phase, it is localized and can be divided into 1A and 1B.In stage 1A the cancerous growth is less than 3 cm. In the 1B stage, it is more than 3cms. In the second stage, it spreads to the lymph nodes and it can again be divided to 2A and 2B. In stage three , the cancer spreads into the chest wall and can further be divided into 3A and 3B. In phase four this disease spreads to other parts of the body. [The stages of lung cancer. 2002].
There are treatments available to cure Lung cancer. It can be treated by surgery, radiation therapy and chemotherapy depending on the stages of the disease. Preventive measures can also be taken to retard this disease. This disease can be prevented to a large extend by not smoking and non-inhalation of radon gases and other carcinogenic substances. . [Lung cancer. 2005].
Lung cancer is one of the most prevalent diseases in the United States. It can prove to be fatal to human life. Hence, preventive measures must be taken and community awareness about this disease should be enhanced to curb it at the grass root level.
Overview: Lung Cancer: What Causes Lung Cancer. 1/1/2005. American Cancer Society. Inc.. 26th Nov.2005.
Lung Cancer. 2005. American Association for cancer research. 27th Nov.2005.
Cancer Incidence and Death Rates Continue to Decline in the US. 7th Jun 2000. Medical College of Wisconsin. 27th Nov.2005.
Lung information. 2005. Deborah heart and living center. 27th Nov.2005.
The stages of Lung cancer. 7th Jan 2004. Cancer research UK. 26th Nov.2005. Read More
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