Mesothelioma Mesothelioma is a form of cancer, develops in the organ linings. It most often affects the lungs (pleura) but can also affect the abdominal lining (peritoneum), heart or testicles. Mesothelioma is caused by asbestos fibre exposure. Typically, symptoms don't appear until decades after exposure. Signs and symptoms Mesothelioma is https://vimeo.com/703523003