Types Of Lung Cancer
Any cellular aberrations of any sort results to a very puzzling and deadly disease. Cancer, is among many that are vastly growing in number in different parts of the world. Lung Cancer, is the most common and widespread cancer- related disease that affects and causes deaths of over 1.3 million people annually. The lungs are susceptible to the development and overgrowth of cells in its tissues due to a variety of factors. The high incidence of Lung Cancer is more likely to manifest in smokers. But non- smokers are at risk as well, side stream or passive smoking increases the risk for acquiring the disease even for those who haven’t smoked one puff in their lifetime. This type of Cancer strikes anyone due to hereditary causes, occupational hazards, lifestyle and other factors that contribute to the development of the disease.
Known chemicals to trigger the overgrowth of cells in the tissues of the lungs include asbestos, radon and the carcinogens present in tobacco smoking. Viruses can trigger the disease as well, some of the implicated viruses are that of from the human papillomavirus and cytomegalovirus. Surprisingly, even particulate matter can subject to the abnormal overgrowth. It is said that if a 1% increase in the particulates in the air would be present, the chances of getting Lung Cancer increases to a whopping 14%. Lung Cancer is not easily detected as symptoms are common as with manifestations of other diseases. These symptoms are dyspnea or shortness of breath, hemoptysis or coughing up of blood, weight loss, fatigue, and generalized weakness.
The person afflicted with Lung Cancer may not observe any symptoms even though he already has it. The lesion that is found on the lungs is seen on a Chest Radiograph. The physician may also order a CT Scan for better visualization, and eventually if the mass is confirmed, a biopsy will fully diagnose the cancer for malignant properties. It is important to determine the type of lung cancer according to its histology to assess properly which treatment would be effective. The two most common types of lung cancer are small cell lung carcinoma and the non small cell lung carcinoma. Basically, the differentiation of the type relies on the histopathology of the cells. Small cell lung carcinoma also referred to as the oat cell carcinoma is the less common of the two having a frequency of 16.8%. It is highly associated with tobacco smoking and is more difficult to treat due to its rapid metastasis. The latter, the non small cell lung carcinoma has a frequency of 80.4%. This type of lung cancer has three further subtypes which are the squamous cell lung carcinoma, adenocarcinoma and large cell carcinoma. These types differ in the origin and the make up of the cellular aberration. They are grouped together sue to similarity in treatment and management.
Though there is difficulty in treatment of the disease, the overall health and staging of the Cancer differs among many factors related to the individual.
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