Is Asbestos exposure the causes of Mesothelioma? When airborne fibers of Asbestos are inhaled or ingested, they can become lodged in the cells lining the heart, lungs or abdominal cavity. These are the only known causes of Mesothelioma. We have been helping victims since 1974. You can find out all about Mesothelioma and Asbestos exposure at our website, or call us today for a no cost evaluation.