After a malignant mesothelioma diagnosis has been made, tests are conducted to determine if cancer cells have spread to other parts of the body.
The process used to find out if cancer has spread outside the pleura is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage of the cancer in order to plan the mesothelioma treatment.
Malignant mesothelioma stages are grouped into localized, advanced, and recurrent stages.