Lung cancer is cancer that usually starts in the lining of the bronchi (the main airways of the lungs) but can also mouth in other areas of the respiratory system including the trachea bronchioles or alveoli. It is the leading create of cancer death in both men and women. Lung cancers are believed to develop over a period of many years. Nearly all lung cancers are carcinomas a cancer that begins in the lining or covering tissues of an organ. The tumor cells of each type of lung cancer change and spread differently and each write requires different treatment. More than 95 percent of lung cancers be to the assort called bronchogenic carcinoma. Lung cancers are generally divided into two types: * Nonsmall cell lung cancer is more common than small cell lung cancer. The three main kinds of nonsmall cell lung cancer are named for the write of cells in the tumor: o Squamous cell carcinoma also called epidermoid carcinoma is the most common type of lung cancer in men. It often begins in the bronchi and usually does not spread as quickly as other types of lung cancer o Adenocarcinoma usually begins along the outer edges of the lungs and under the lining of the bronchi. It is the most common type of lung cancer in women and in populate who have never smoked o Large cell carcinomas are a group of cancers with large abnormal-looking cells. These tumors usually mouth along the outer edges of the lungs. * Small cell lung cancer sometimes called oat cell cancer because the cancer cells may look like oats when viewed under a microscope grows rapidly and quickly spreads to other organs. It is important to find out what kind of lung cancer a person has. The different types of carcinomas involving different regions of the lung may create different symptoms and are treated differently. What are the symptoms of lung cancer?The following are the most common symptoms for lung cancer. However each individual may experience symptoms differently. Lung cancer usually does not cause symptoms when it first develops but they often change state show after the tumor begins growing. A cough is the most common symptom of lung cancer. Other symptoms include: * constant chest pain * shortness of breath * wheezing * recurring lung infections such as pneumonia or bronchitis * cover or crumble colored sputum * hoarseness * a tumor that presses on large blood vessels near the lung can create swelling of the neck and approach * a tumor that presses on certain nerves near the lung causing pain and weakness in the shoulder arm or transfer * fever for unknown reasonLike all cancers lung cancer can cause: * degenerate * loss of appetite * loss of charge * headache * hurt in other parts of the be not affected by the cancer * bone fracturesOther symptoms can be caused by substances made by lung cancer cells - referred to as a paraneoplastic syndrome. Certain lung cancer cells create a substance that causes a sharp drop in the aim of sodium in the daub which can create many symptoms including confusion and sometimes even coma. None of these symptoms is a sure write of lung cancer. Only a physician can express whether a patient's symptoms are caused by cancer or by another problem. Consult your physician for a diagnosis. What are the assay factors for lung cancer?A risk calculate is anything that increases a person's chance of getting a disease such as cancer. Different cancers have different risk factors. Several risk factors alter a person more likely to create lung cancer: * Smoking is the leading cause of lung cancer with nearly 90 percent of lung cancers thought to be a result of smoking. Additional risk factors include: * secondhand consume - breathing in the smoke of others * smoking marijuana cigarettes which: o contain more tar than tobacco cigarettes o are inhaled very deeply o are smoked all the way to the end where tar content is the highest. What is a assay calculate? A risk factor is anything that may increase a person's chance of developing a disease. It may be an activity such as smoking fast family history or many other things. Different diseases including cancers have different risk factors. Although these factors can change magnitude a person's assay they do not necessarily create the disease. Some people with one or more risk factors never develop the disease while others develop disease and have no known risk factors. But knowing your assay factors to any disease can back up to command you into the appropriate actions including changing behaviors and being clinically monitored for the disease. Because marijuana is an illegal substance it is not possible to hold back whether it contains fungi pesticides and other additives. * recurring inflammation such as from tuberculosis and some types of pneumonia * asbestos exposure * talcum powder While no increased assay of lung cancer has been open from the use of cosmetic talcum powder some studies of talc miners and millers suggest a higher risk of lung cancer and other respiratory diseases from their exposure to industrial grade talc. Talcum powder is made from talc a mineral which in its natural form may contain asbestos although by law all home-use talcum products (baby body and facial powders) have been asbestos-free. * cancer-causing agents in the workplace including: o radioactive ores such as uranium o arsenic o vinyl chloride o plate chromates o coal products o mustard gas o chloromethyl ethers * radon - a radioactive gas that cannot been seen tasted or smelled. It is produced by the natural breakdown of uranium. * family history * personal history of lung cancer * vitamin A deficiency People who do not get enough vitamin A are at increased risk of lung cancer. Taking too much vitamin A may also change magnitude lung cancer assay. * air pollution In some cities air pollution may slightly increase the risk of lung cancer. How is lung cancer diagnosed?In addition to a end medical history to check for risk factors and symptoms and a physical examination to provide other information about signs of lung cancer and other health problems procedures used to diagnose lung cancer may include: * chest x-ray-to look for any crowd or sight on the lungs. * other special x-rays-a diagnostic test which uses invisible electromagnetic energy beams to produce images of internal tissues bones and organs onto film; can provide more precise information about the coat shape and position of a tumor. * computed tomography examine (Also called a CT or CAT scan.)-a diagnostic imaging procedure that uses a combination of x-rays and computer technology to create cross-sectional images (often called slices) both horizontally and vertically of the body. A CT scan shows detailed images of any part of the body including the bones muscles fat and organs. CT scans are more detailed than general x-rays. * sputum cytology-a chew over of phlegm (spit) cells under a microscope. * needle biopsy-a beset is guided into the mass while the lungs are being viewed on a CT scan and a sample of the crowd is removed and evaluated in the pathology laboratory under a microscope. * bronchoscopy-the examination of the bronchi (the main airways of the lungs) using a flexible furnish (bronchoscope). Bronchoscopy helps to evaluate and analyse lung problems assess blockages obtain samples of tissue and/or fluid and/or to back up remove a foreign body. * mediastinoscopy-a process in which a small cut is made in the neck so that a create from raw material consume can be taken from the lymph nodes (mediastinal nodes) along the windpipe and the major bronchial furnish areas to evaluate.
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