What is Mesothelioma?

Mesothelioma is a rare form of cancer that invades mesothelial cells. These are specialized cells that make up the membranes lining the chest, the stomach or abdomen, and the heart. Mesothelial cells form a tissue called mesothelium, producing a lubricating fluid that allows the organs to move without irritating nerves.
Asbestos exposure can cause mesothelioma. If you have mesothelioma, you may have come into contact with asbestos on the job or through a secondhand exposure such as asbestos brought into the home on your spouse’s shoes or clothing. See Asbestos Exposure and Mesothelioma for more details. Some researchers believe that the virus SV40 may also be a factor in the development of mesothelioma.

Cigarette–smoking increases your chances of contracting lung cancer or an asbestos–related disease such as asbestosis, although it does not cause mesothelioma. If you have been exposed to asbestos and smoke cigarettes, you should consider quitting. Your local American Cancer Society and the Centers for Disease Control can provide resources, tips, and support for giving up the habit.