Mesothelioma and Asbestosis Mesothelioma and asbestosis are two lung diseases linked to exposure to asbestos fibers. Mesothelioma is a cancerous condition is caused by asbestos fibers. Asbestosis is a non-cancerous lung disease that causes scarring. Both diseases have the same symptoms, including breathlessness. Doctors diagnose mesothelioma using tests such as https://vimeo.com/704943992