Mesothelioma Mesothelioma, a form of cancer, occurs in the organ linings. It is most commonly found in the lung (pleura) but can also affect the lining of the abdomen (peritoneum) as well as the heart or testicles. Mesothelioma can be caused by asbestos fibre exposure. Typically, symptoms don't appear until https://vimeo.com/703529791