Also I believe that mesothelioma cancer is a scarce form of cancers that is commonly found in those people previously exposed to asbestos.  Cancerous cellular material form while in the mesothelium, which is a protecting lining that covers almost all of the body's bodily organs. These cells generally form within the lining with the lungs, mid-section, or the sac which actually encircles the heart. Thanks for discussing your ideas.