Mesothelioma - A Rare Asbestos Disease Mesothelioma is a cancerous growth that occurs in the tissues and linings of certain organs. It can start in the lungs (pleural mesothelioma) or in the stomach liner (peritoneal mesothelioma). Exposure to asbestos is the main risk factor for mesothelioma. After exposure, symptoms can https://vimeo.com/703529480