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 illness that causes scarring. Both diseases have the same symptoms, like breathlessness. The doctors diagnose mesothelioma through tests like a https://vimeo.com/704938095