Mesothelioma Mesothelioma is a form of cancer that grows in the linings that surround organs. It usually affects the lung (pleura) but can also affect the abdominal lining (peritoneum), heart or testicles. Mesothelioma is a result of asbestos fibre exposure. Typically, symptoms don't appear until decades after exposure. Signs and https://vimeo.com/705019593