What is Mesothelioma?

   Primarily caused by asbestos exposure, mesothelioma is a cancer that affects the lining of the lungs or abdomen and in some cases the lining of the heart. Symptoms of the cancer resemble less serious conditions, which usually contributes to a late diagnosis.

   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.