Could you explain what is malignant mesothelioma?

Ca of lung lining: Your lungs are surrounded by a lubricated lining called the pleura. This lining allows your lungs to move against your chest wall without friction. When these cells become cancerous, it is called a malignant mesothelioma. Mesothelioma are difficult cancers with few effective treatments. A single day of radiation to the biopsy site can prevent local invasion.

Cancer: Malignant mesothelioma is a cancer which develops in the lining of the chest. This is associated with asbestos exposure, and presents with symptoms such as shortness of breath, chest pain, weight loss, etc. Cure is rare, since it is rarely found early.