Mesothelioma and Work Exposure People who work with asbestos are at a higher risk of mesothelioma. Firefighters, construction workers and military veterans are at higher risk. The lung's lining (pleural mesothelioma) or abdomen, is the primary mesothelioma's primary site. In rare instances it can affect the heart or testicles. Consult https://vimeo.com/703540840