Mesothelioma Mesothelioma, a form of cancer, occurs in the organ linings. It usually affects the lung (pleura) but can also affect the abdomen's lining (peritoneum), heart or the testicles. Mesothelioma is caused by asbestos fibre exposure. Typically, symptoms don't appear until decades after exposure. Symptoms Mesothelioma, a rare form of https://vimeo.com/704920102