Mesothelioma Mesothelioma is a type of cancer that grows in the linings that surround organs. It most often affects the lung (pleura) but it can also affect the abdominal lining (peritoneum) and heart, as well as testicles. Exposure to asbestos fibres is the cause of mesothelioma. Typically, symptoms don't appear https://vimeo.com/704939117