There are three type of mesothelioma.
1. Pleural Mesothelioma
Pleural mesothelioma is a rare cancer often diagnosed in people who have been exposed to high levels of asbestos. The malignancy affects the pleura, a thin membrane of lubricating cells that lines the lungs and chest wall.
In most instances, pleural disease is not considered fatal but it can cause diminished lung function and may confirm that a person has sustained significant asbestos exposure. Those diagnosed with pleural conditions are generally considered to be at a higher risk for developing the more severe pleural mesothelioma. Pleural mesothelioma originates in the pleura but can quickly spread to the outer chest wall, abdomen, and heart.
2. Peritoneal Mesothelioma
Peritoneal mesothelioma is a rare type of cancer that occurs in the thin cell walls which surround the abdominal cavity, called peritoneum. This disease is known only to be caused by exposure to asbestos, a microscopic natural fiber that was used heavily in industry. It can reach through ingested asbestos fibers which are processed through digestion and become lodged in the peritoneum, or, through the lungs and lymph nodes by inhaled asbestos fibers.
3. Pericardial Mesothelioma
Pericardial mesothelioma originates in the lining of the heart. This one is the rarest of all mesothelioma cancers and account for only an estimated 10 percent of all mesothelioma insidences annually. Asbestos is a naturally occurring, but toxic, mineral that was used in industrial capacities. While the precise route by which microscopic asbestos fibers reaches the pericardial lining is not known, mesothelioma doctors surmise that inhaled asbestos fibers are absorbed into the bloodstream and become entangled in the heart’s lining as the blood processes through the heart. That is why there are some incidences and being peridicardial mesothelioma.