Mesothelioma and Asbestosis Two lung diseases are connected to asbestos fiber exposure: mesothelioma, and asbestosis. Mesothelioma, a cancerous disease, is caused by asbestos fibers. Asbestosis is a non-cancerous lung condition that causes scarring. Both diseases share the same symptoms, including shortness of breathe. asbestos mesothelioma lawsuit diagnose mesothelioma by running