Mesothelioma The Thin layer of tissue that covers the majority of your organs may develop mesothelioma that is malignant. The majority of cases of mesothelioma are in the lining of the lungs (pleura). Other, less well-known types occur in the lining of the abdomen or around the testicles and heart. https://fearclass6.werite.net/the-three-greatest-moments-in-mesothelioma-asbestos-claims-history