Mesothelioma and Asbestosis Two lung diseases are linked to exposure to asbestos fibers: mesothelioma, and asbestosis. Mesothelioma is a kind of cancer and asbestosis is a noncancerous disease that causes scarring and stiffness in the lungs. Both diseases share similar symptoms, like breathlessness. Doctors diagnose mesothelioma through tests, including biopsy. https://vimeo.com/704920424