Pericardial mesothelioma is the least common of mesotheliomas linked to asbestos exposure.  Unlike pleural and peritoneal mesotheliomas which affect the lungs and abdomen respectively, pericardial mesothelioma impacts the heart.  Specifically, the malignancy occurs in the pericardium, the protective, mesothelial layer that surrounds the heart.  Accounting for 1-2% of all mesothelioma cases, fewer than 50 people…