Mesothelioma - A Rare Asbestos Disease Mesothelioma is a tumor that develops in the tissues and linings of certain organs. It can begin in the lung (pleural mesothelioma) or in the stomach liner (peritoneal mesothelioma). Asbestos exposure is the main risk factor for mesothelioma. After exposure, symptoms may take years https://vimeo.com/703530917