mesothelioma cause

Mesothelioma – A malignant tumor of the mesothelium. The mesothelium is the thin lining on the surface of the body cavities and the organs that are contained within them

Asbestosis: A condition featuring scarring of the lungs caused by inhaled asbestos fibers. Asbestosis is irreversible. It tends to lead to COPD (chronic obstructive pulmonary disease), a progressive disorder that can be disabling or fatal.

Asbestosis can lead to mesothelioma developing.
From the link…
The most common illness associated with asbestos is mesothelioma, a rare and deadly cancer caused by asbestos exposure.