Malignant mesothelioma through 4 stages, each more advanced than the other. Your doctor will determine at what stage the cancer is, in a process called definition of the stage, because each stage requires changes in treatment.
Stage I: Cancer is found in the tissues lining the lungs, heart or abdomen.
Stage II: Mesothelioma has reached this stage when the investment has gone to the lymph nodes.
Stage III: Cancer has spread to the chest cavity, the center of the chest, heart, diaphragm or stomach.
Stage IV: The most advanced stage is when the mesothelioma has spread to organs that are not part of the lungs, the heart or abdominal system, such as the liver, pancreas or colon.
