As with other cancerous diseases, the progression of mesothelioma is typically broken into stages, with the treatment options based on the stage of the disease.
Stages of Mesothelioma
The staging commonly used for mesothelioma is the Brigham staging system, and it can be described as follows:
Stage 1 occurs when the tumor lies completely within the capsule of the
pleura, without swollen lymph nodes (adenopathy).
Stage 2 has the characteristics of Stage 1, except that the tumor has spread and there is presence of adenopathy. The boundaries of the tumor still allow for a resection (removal of the tumor) without cutting into other organs.
Stage 3 includes extension of the disease into the chest wall or into the heart, through the diaphragm or peritoneum, or outside the pleura to involve the lymph nodes.
Stage 4 occurs when the cancer has formed in distant organs through metastases.
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