 The four main types of lung cancer are 1) "Small cell" 2) "Squamous cell carcinoma" 3) "Large cell carcinoma" 4) "Adenocarcinoma".
There are a variety of symptoms of Lung Cancer signs and symptoms which include dyspnea which is a shortness of breath, hemoptysis which is coughing up blood, chronic coughing that is different from regular coughing, chest pain or even noticeable pain in your abdomen, cachexia, noticeable fatigue, loss of appetite, weight loss or difficulty swallowing.
If the cancer growth happens into the lumen it may block the airway causing breathing problems which will lead to additional accumulation of secretions behind the blockage predisposing such person to pneumonia. It is common for lung cancers to have a prominent blood supply leading to bleeding from the cancer into the airway that will be then coughed up.
Depending on which type of tumor exists - a paraneoplastic phenomena may be the first problem to attract attention to your condition. Predominantly in lung cancer this is attributed as Lambert-Eaton myasthenic syndrome (muscle weakness due to auto-antibodies), hypercalcemia and SIADH. Cancer tumors existing in the top of the lung, known as Pancoast tumors, eventually possibly invading the local part of the sympathetic nervous system which then leads to changed sweating patterns and eye muscle problems, also noticeable occasionaly is muscle weakness in the hands due to invasion of the brachial plexus.
Sometimes in more advanced conditions the cancer has already spread beyond the original site by the time symptoms medical attention have been sought. Usual sites to find this next stage condition called metastasis include the bone, such as the spine (causing back pain) and the brain.
Over 80-90% of lung cancers are primarily caused by carcinogens such as those found in tobacco smoke, including indirect exposure to tobacco smoke. Research and statistics have found that other causes exist in the breathing of industrial chemicals such as asbestos, arsenic, polycyclic hydrocarbons, natural radioactive gases such as radon, and also the chlorine and elements breathed in while in the shower every day. Now more than ever the risk of lung cancer is increasing with age and elevated exposures to these elements.
The longer you smoke cigarettes - obviously the greater your risk of developing lung cancer. Very few cases of lung cancer are diagnosed in people under the age of 40 and invariably, the most common age of diagnosis is between 70 and 74. In the United States alone - 91,000 men and 79,000 women are diagnosed with lung cancer every year. Recently now revealed in the United Kingdom, the figures are now estimated at 23,000 men and 15,000 women being diagnosed with lung cancer every year.
Quite commonly involved is the genetics and viruses connection. Primarily in the discovery that Oncogenes are believed to make people more susceptible to cancer. Proto-oncogenes are believed to turn into oncogenes when exposed to particular carcinogens. Viruses are also suspected of causing cancer in humans, this link has been proven in animals. A genetic susceptibility and a viral infection are not of major contibuting importance in lung cancer specifically, but they may influence pathogenesis and your odds if you do smoke cigarettes.
Additional risk factor involved with Lung cancer is the pleomorphic yeast / fungus factor that thrives in a highly acidic diet onset by acidic chemicals. Make no mistake here, highly acidic diets commence those deadly chain reactions in which the body will make every attempt to keep its pH at 7.3. This chain reaction will then cater to a thriving series of taxing parasites that will take away much of the power of the immune system.
In order to deal with these parasites that feed on many of the same things that cancer cells feed on, you must enact Cancer Factor's - cancer factors #1, #2 and #3
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