Mesothelioma - A Rare Asbestos Disease Mesothelioma is a cancer that grows in the linings of certain organs. It can begin in the lung (pleural mesothelioma) or in the stomach lining (peritoneal mesothelioma). Asbestos exposure is the main risk factor for mesothelioma. After exposure, symptoms may take years to manifest. https://vimeo.com/705001410