Mesothelioma and Asbestosis Mesothelioma and asbestosis are two lung diseases linked to exposure to asbestos fibers. Mesothelioma is a kind of cancer and asbestosis is a noncancerous condition that causes stiffness and scarring in the lungs. Both diseases have the same symptoms, like breathlessness. Doctors diagnose mesothelioma by running tests, https://vimeo.com/703544068