Mesothelioma is an uncommon form of cancer, commonly linked with prior exposure to asbestos. In this disease, cancerous cells grow in the protective lining (mesothelium) covering the internal organs of the body. This disease is commonly located in the outer lining of the chest cavity and lungs (pleura). It can also be found in the lining of the abdominal cavity (peritoneum), or the sac that envelops the heart (pericardium). People who contract this disease have invariably worked on jobs that put them in close contact with asbestos.

One of the characteristics of mesothelioma is that symptoms can appear very late, sometimes 50 years following first contact with asbestos. Symptoms of pleural mesothelioma, the disease