Mesothelioma definition :
•    A type of cancer caused by exposure to asbestos.
This cancer is usually considered a tumor of the pleura and not a type of lung cancer.
•    Cancer involving the pleura (the membranes that cover the lungs).
•    A cancer of the lining of the lungs, chest and stomach caused by inhalation of asbestos dust and fibers or asbestos exposure
•    A cancer of cells similar to those forming the lining of the lungs, heart, the abdominal cavity and its organs.
•    A malignant tumor covering the lining of the lung and often associated with asbestos exposure.
•    A tumor or tumors affecting the lining of the chest or abdomen.
•    A malignant tumor of mesothelium caused by the inhalation of asbestos
•    A tumor in the lining of the lungs. Mesothelioma is linked almost exclusively to asbestos exposure.

• Mesothelioma is known as a lethal condition if not detected on time. There is however forms of mesothelioma that cannot be lethal and these ones are known as benign mesothelioma.