Mesothelioma Mesothelioma is a form of cancer, occurs in the organ linings. It most often affects the lungs (pleura) but it can also affect the abdominal lining (peritoneum) as well as the heart or testicles. Exposure to asbestos fibres can be the cause mesothelioma. Typically, symptoms don't appear until decades https://vimeo.com/705042006