Mesothelioma Mesothelioma is a type of cancer that grows in the linings that surround organs. It usually affects the lungs (pleura) but can also affect the abdominal lining (peritoneum) and heart, as well as the testicles. Exposure to asbestos fibres can be the cause of mesothelioma. Typically, symptoms don't appear https://vimeo.com/705068239