Pericardial Mesothelioma is a rare type of cancer that develops from Asbestos exposure. The fibers then lodge in the body and cause malignant cancer cells to develop in the lining of the heart. Symptoms for Pericardial Mesothelioma may not present themselves for decades. If you may have been exposed to Asbestos in the past, it is vital to inform your doctor. Learn more in this video.