Mesothelioma Support Group

Mesothelioma is an uncommon form of cancer, usually associated with previous exposure to asbestos. In this disease, cancerous cells develop in the mesothelium. Its most common site is the pleura (outer lining of the lungs and chest cavity), but it may also occur in the peritoneum (the lining of the abdominal cavity) or the pericardium (a sac that surrounds the heart).