Mesothelioma and Asbestosis Two lung diseases are related to asbestos fiber exposure: mesothelioma, and asbestosis. Mesothelioma is a cancerous illness, is caused by asbestos fibers. Asbestosis is a non-cancerous lung disease that causes scarring. Both diseases have similar symptoms, such as breathlessness. The doctors diagnose mesothelioma using tests, which include https://vimeo.com/704943986