Mesothelioma Mesothelioma, a form of cancer, occurs in the linings of organs. It is most commonly found in the lung (pleura) but it can also affect the lining of the abdomen (peritoneum), heart or the testicles. Mesothelioma is a result of asbestos fibre exposure. Typically, symptoms don't appear until decades https://vimeo.com/704971035