Mesothelioma is a tumor of the mesothelium, which is a layer of cells forming a thin membrane that lines certain body cavities, A tumor in these area can be benign (localized) or malignant (diffusely spread). Mesothelioma is most commonly caused by the ingestion of asbestos particles. The disease varies, depending on the body part affected. Mesothelioma is characterized by symptoms including difficulty in breathing, a persistent and chronic cough, or even a change in normal coughing pattern. Mesothelioma...