Mesothelioma and Asbestosis Two lung diseases are related to exposure to asbestos fibers: mesothelioma, and asbestosis. Mesothelioma is a kind of cancer, while asbestosis is a noncancerous condition that causes stiffness and scarring in the lungs. Both diseases share similar symptoms, like breathlessness. Doctors diagnose mesothelioma by testing like a https://vimeo.com/703538053