Mesothelioma and Asbestosis Mesothelioma and asbestosis are two lung diseases linked to exposure to asbestos fibers. Mesothelioma is a cancerous illness, is caused by asbestos fibers. Asbestosis is a non-cancerous lung condition that causes scarring. Both diseases have similar symptoms, including shortness of breath. Doctors diagnose mesothelioma by running tests, https://vimeo.com/704999413