Mesothelioma cancer is caused by the lining of cells in abdominal cavities or chest. Generally, mesothelioma results by the exposure of asbestos. The doctor uses an instrument called thoracoscope to see inside the affected chest and the doctor uses another instrument called peritoneoscope to see inside the affected abdomen. Early aggressive treatment is required in mesothelioma. Symptoms of Mesothelioma Cancer: Some of the important symptoms caused by mesothelioma are Shortness of breath. Pain in ...