Mesothelioma Mesothelioma is a form of cancer, develops in the linings covering organs. It most often affects the lungs (pleura) but can also affect the abdominal lining (peritoneum), heart or the testicles. Mesothelioma can be caused by asbestos fibre exposure. Typically, symptoms don't appear until decades after exposure. Symptoms Mesothelioma https://vimeo.com/704936049