Mesothelioma and Asbestosis Two lung diseases are connected to exposure to asbestos fibers: mesothelioma, and asbestosis. Mesothelioma, a cancerous disease is caused by asbestos fibers. Asbestosis is a non-cancerous lung disease that causes scarring. Both diseases share similar symptoms, such as shortness of breath. Doctors diagnose mesothelioma by running tests, https://vimeo.com/704926348