Mesothelioma Mesothelioma, a form of cancer, occurs in the linings covering organs. It is usually found in the lung linings, but it can also be found in the abdomen's lining, heart and testicles. Mesothelioma is caused by asbestos fibre exposure. Typically, symptoms don't appear until decades after exposure. Symptoms Mesothelioma https://vimeo.com/704990817