Posts Tagged ‘Lung Cancers’
LUNG CANCER – ONE OF THE MOST FATAL ILLNESSES IN THE WORLD
Lung cancer is an ailment of unrestrained cell development in the lung tissues. This growth may lead to metastasis, spreading to the adjoining tissues and penetrating prematurely the lungs. It is the most popular cancer cause of death in men, and the second most common in women.Frequent symptoms of lung cancer: 1. Continuous chest throbbing 2. Persistent coughs that become severe 3. Shortness of breath, puffing, or huskiness 4. Constant troubles with pneumonia or bronchitis 5. Coughing up blood 6. Inflammation of the neck and face 7. Loss of appetite or significant weight loss 8. ExhaustionTypes of Lung Cancers:A. Small-cell lung cancer occurs when malignant cells form in the lung tissues. Small lung cancer has three different types, classified according to the forms of cells developing as cancer. These are:1. Small cell carcinoma 2. Union of small cell and large cell carcinoma. 3. Joint small cell carcinoma.These three kinds may contain many different types of cells. The cancer cells of all types may grow and multiply in different ways.Stages of Small Cell Lung CancerLimited stage - cancer starts in the lung tissues, and in the adjacent lymph nodes. Lymph nodes are tiny, bean-shaped structures near the lungs.Extensive Stage - cancer has propagated beyond the lungs to other parts ... [more..]
CLASSIFICATION OF LUNG CANCER
Most lung cancers are termed "carcinomas", which are tumors caused by uncontrolled reproduction of epithelial cells; these are the cells which form the linings and surfaces of most of the bodies organs and internal structures. There are two main types of carcinoma which are classified according to the size and presentation of the cancerous cells.After a biopsy has been taken (which removes part of the tissue suspected to be cancerous), a laboratory specialist, known as a "histopathologist", places the biopsy sample under a microscope and is able to determine whether cancer is present and whether it is non-small cell or small cell cancer. The former accounts for the bulk of lung cancers (80%) but whatever classification is accorded, it is important because different treatment regimes are more effective at treating the different types (note that there are other classifications but these two are the major ones).Non-small cell lung cancers (NSCLC) are themselves further classified into three different types though the treatment therapies are very similar for all of them:Squamous cell lung carcinoma;Adenocarcinoma; andLarge cell lung carcinoma.Squamous cell cancer of the lung occurs in around a quarter of all lung cancer patients and is usually located near the central bronchus, this ... [more..]
WHAT IS LUNG CANCER – INCIDENCE, SIGNS, SYMPTOMS, CAUSATION, PROGNOSIS AND TREATMENT
INTRODUCTIONLung cancer may also be the most tragic cancer because in most cases, it might have been prevented, 87% of cases are caused by smoking. Lung cancer has long been the most common cause of cancer death in men and since 1987 it has also become the most common cause of cancer death in women. It is the second most commonly occurring form of cancer in most western countries and although the lung cancer incidence is less common in developing countries, the rapid increase in the popularity of smoking will see the number of sufferers in those countries quickly catch up with the western world.Lung cancers can arise in any part of the lung, and 90%-95% of cancers of the lung are thought to arise from the epithelial, or lining cells of the larger and smaller airways (bronchi and bronchioles); for this reason, lung carcinomas are sometimes called bronchogenic carcinomas or bronchogenic cancers.The most common types are epidermoid carcinoma, small cell carcinoma, adenocarcinoma and large cell carcinoma.Most experts agree that lung cancer is attributable to inhalation of carcinogenic pollutants by a susceptible host. Who is most susceptible? Any smoker over the age of 40, especially if they began smoking before ... [more..]