Cigarettes and Lungs Cancer - Research Paper Example

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Cigarettes and Lungs Cancer

Lung cancer is one of the leading causes of cancer-related mortality all over the world. There are basically 2 predominant types of lung cancer and they are small cell lung cancer or SCLC and non-small cell lung cancer or NSCLC. The latter constitutes 85% of all lung cancer cases. NSCLC is further divided into large cell carcinoma, squamous cell carcinoma, and adenocarcinoma (Molina et al, 2008). All these types of lung cancers are different in terms of clinical presentation and histopathological characteristics. But management plans and prognoses are similar. The most frequently encountered NSCLC is adenocarcinoma arising from the mucosal glands of the bronchi. It represents 35-40 percent of all lung cancers. It is mostly seen in the peripheral portion of the lung. It is the most common histologic subtype. It can also manifest as scar cancer. This subtype is mostly seen in non-smokers and may present as a bronchoalveolar form of multifocal tumors. Squamous cell carcinoma accounts for about 25 percent of lung cancers. Unlike adenocarcinoma, the cancers are mainly seen in the central parts of the lungs with the classical clinical presentation being proximal bronchus cavity. It is characterized by keratin pearls and has the tendency to exfoliate. It is often associated with hyperkalemia. 10-15 percent of lung cancers are caused due to large cell carcinoma that is easily diagnosable by chest X-ray. Lung cancer metastasis to liver, bones, adrenal glands, brain, spinal cord, and pericardium. ...Show more

Summary

The writer of the following research paper "Cigarettes and Lungs Cancer" seeks to concern the relations between smoking and lung cancer development. Smoking, both active and passive, undoubtedly, is one of the important causative factors of lung cancer…
Author : celestine38
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