What is Mesothelioma ?

Mesothelioma is a type of cancer that is caused by exposure to asbestos . Malignant cells develop in the mesothelium. The mesothelium is a protective lining that covers most of the human body's internal organs. The most common location is the pleura which is the outer lining of the lungs and internal chest wall . Mesothelioma can also occur in the peritoneum which is the lining of the abdominal cavity, the pericardium which is a sac that surrounds the heart, or in the heart itself.