Mesothelioma and Asbestosis Mesothelioma and asbestosis are two lung diseases linked to exposure to asbestos fibers. Mesothelioma, a cancerous disease, is caused by asbestos fibers. Asbestosis is a non-cancerous lung disease that causes scarring. Both diseases share similar symptoms, like breathlessness. The doctors diagnose mesothelioma using tests, including biopsy. Signs https://vimeo.com/704940256