Mesothelioma Life Expectancy Hearing you have mesothelioma can be a life-altering experience. Patients are often told they only have a few months left after diagnosis. Mesothelioma is a cancer that develops in the lining of the lungs (pleura) and, less often, in the lining of the abdominal cavity (peritoneum). Exposure https://vimeo.com/704933111