The primary risk factor for developing mesothelioma is asbestos exposure. In the past, asbestos was used as a very effective type of insulation. The use of this material, however, has been declining since the link between asbestos and mesothelioma has become known. It is thought that when the fibers of asbestos are inhaled, some of them reach the ends of the small airways and penetrate into the pleural lining. There the fibers may directly harm mesothelial cells and eventually cause mesothelioma. If the fibers are swallowed, they can reach the abdominal cavity, where they can contribute to the formation of peritoneal mesothelioma.
Exposure to certain types of radiation as well as to a chemical related to asbestos known as zeolite has also been related to incidences of mesothelioma.
The early symptoms of mesothelioma are often ignored, because they may be caused by a variety of ailments. These symptoms include:
* pain in the lower back or at the side of the chest
* shortness of breath
* difficulty swallowing
* cough
* fever
* fatigue
* abdominal pain,weight loss and nasuea & vomiting(symptoms of peritoneal mesothelioma)
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