[header] How to determine if you have mesothelioma [title] Recognize that most mesothelioma cases are linked with asbestos. [step] Most cases of mesothelioma have been linked to asbestos exposure. Asbestos is a naturally occurring fiber found in rocks, minerals, and soil. 
Because of its flame-retardant properties, it was used in a great deal of industrial manufacturing until 1971. Those who worked with asbestos were the most likely to be diagnosed with malignant mesothelioma.