Mesothelioma Mesothelioma is a form of cancer that develops in the linings that surround organs. It most often affects the lung (pleura) but it can also affect the abdomen's lining (peritoneum) as well as the heart or testicles. Mesothelioma is a result of asbestos fibre exposure. Typically, symptoms don't appear https://vimeo.com/703526488