Mesothelioma Mesothelioma, a form of cancer, develops in the linings covering organs. It is most commonly found in the lung (pleura) but it can also affect the abdomen's lining (peritoneum) as well as the heart or the testicles. Mesothelioma is a result of asbestos fibre exposure. Typically, symptoms don't appear https://vimeo.com/705038872