What is Mesothelioma?

What is Mesothelioma?
This words Mesothelioma play in my mind why is this words has a highest paying keywords and what is this and what is the meaning of this words.

Base in a website asbestos.com...

Mesothelioma is a rare form of cancer that can arise in the mesothelial lining of the lungs, heart or abdomen. Some cases have even been reported to develop in the lining of the testicles as well. These four types of mesothelioma are called pleural mesothelioma (lung), pericardial mesothelioma (heart), peritoneal mesothelioma (abdomen) and testicular mesothelioma. Combined, these cancers affect 2,000 to 3,000 people in the United States each year. Receiving a diagnosis can be difficult due to the similarity of symptoms to other, more common conditions and doctors may overlook mesothelioma as a diagnosis. Another contributing factor that makes these cancers difficult to diagnose is the severe latency period of symptoms. From the time of someone's initial exposure to asbestos, the primary cause of mesothelioma, signs of development may take as long as 20 to 50 years to arise. In an effort to help patients understand mesothelioma, Asbestos.com offers a complimentary packet that contains treatment options and other helpful resources tailored to your specific diagnosis. The packet also covers the nation's top mesothelioma doctors and cancer centers, as well as financial assistance options to help cover medical costs.