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How to Prevent Lung CancerBY: Ritu Choudhary | Category: Cancer Prevention | Submitted: 2010-08-08 17:55:22
What are the types of Lung Cancer Bronchi, bronchi-oles and lungs are coated with a thin layer of tissue called epithelium. 95 percent of lung cancers originated right in the bronchus and is called bronchogenic carcinoma (that originated from the bronchi). In the remaining 5 percent of cases the origin may be in different tissues that compose the lung, such as the nervous and endocrine tissues (in this case we speak of pulmonary carcinoid neuroendocrine origin) or lymphatic (in this case of a pulmonary lymphoma). Squamous cell carcinoma (also called squamous cell) represents 25-30 percent of tumors and bronchial airways was born in medium-caliber. It is due to the transformation of the bronchial epithelium caused by smoking. This is the lung cancer with better prognosis. Like the previous year, including the small cell (or small cell cancer), which is observed in 20 percent of cases, occurs in the bronchi which have larger diameter, and also correlates with cigarette smoking. This tumor consists of small cells, has an origin of neuroendocrine and type can exist in pure form or coexist with other types. His prognosis is usually worse than the previous year. Adenocarcinoma occurs in about 30 percent of cases and is localized, unlike previous ones, namely in the most peripheral level of the bronchi of smaller caliber. Lung cancer is more frequent among those who have never smoked and is sometimes due to the presence of pulmonary scars (eg old tuberculosis infection or pleurisy). A subtype is represented adeno-carcinoma bronchioloalveolar derived from cells lining the alveoli and that tends to spread along the airways. Less frequent (10-15 percent) is the large cell carcinoma, which also derives from the airways smaller. From the clinical point of view it is customary to distinguish between small cell lung cancer (ie small cell) and non-small cell lung cancer (which includes other types mentioned above). The importance of this division is linked to different types of treatment. What are the common symptoms of Lung Cancer? As mentioned earlier, the small cell and squamous cell carcinoma arising in a more central position, ie in the bronchial branches of larger caliber, adenocarcinoma and large cell carcinoma occur instead on a more peripheral. Lung cancer may spread by contiguity to adjacent structures (pleura, chest wall and diaphragm are some examples), because the lymph nodes (broncho-pulmonary, mediastinal, and supraclavicular) or through the bloodstream: In this last case will be presented with distant metastases. Almost all organs can be affected: liver, brain, adrenal glands, bones, kidneys, pancreas, spleen and skin. Lung cancer is not always very clear from the outset and symptoms may be common to other lung diseases. Or dry cough with phlegm (sometimes streaked with blood), minor bleeding with coughing (hemoptysis), shortness of breath, chest pain and weight loss are signs and symptoms may also occur in mild form and a small percentage of cases missing. How it is possible to prevent lung cancer? To make a good prevention of lung cancer it is essential to quit smoking. In the case of non-smokers is good at every opportunity to enforce the bans in public places and work, particularly when children are present. There is still no agreement among experts on whether to screen (on regular basis) people who are at high risk for smokers or former smokers: the reason is that screening is not always effective, detecting cancer early and help to make therapies that effectively increase the lifetime of the person. Studies are ongoing to demonstrate the usefulness of ultra fifty smokers refer to annual reviews as spiral CT or sputum cytology. There are some markers in the blood (including hormones) to help assess the progress of the disease. Article Source: http://www.cancer-surgery.com/ About Author / Additional Info: I am not a cancer doctor. Always consult your doctor before taking any action or conclusion regarding your medical condition. Comments on this article: (0 comments so far)
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