Mesothelioma is a rare form of cancer caused by inhaled asbestos fibers. It is estimated that around 3,000 new mesothelioma cases are diagnosed every year. Usually, mesothelioma develops from the thin layer of tissue that covers many of the internal organs. Unfortunately, mesothelioma is an aggressive and fatal cancer. Because of mesothelioma’s aggressive and deadly nature, early detection and treatment are quite important.