Mesothelioma and Asbestosis Two lung diseases are connected to exposure to asbestos fibers mesothelioma and asbestosis. Mesothelioma is a cancerous illness, is caused by asbestos fibers. Asbestosis is a non-cancerous lung disease that can cause scarring. Both diseases share similar symptoms, such as breathlessness. Doctors diagnose mesothelioma by running tests, https://vimeo.com/704942581