Mesothelioma staging
Mesothelioma Microchapters |
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Mesothelioma staging On the Web |
American Roentgen Ray Society Images of Mesothelioma staging |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
Overview
Staging
Mesothelioma is described as localized if the cancer is found only on the membrane surface where it originated. It is classified as advanced if it has spread beyond the original membrane surface to other parts of the body, such as the lymph nodes, lungs, chest wall, or abdominal organs.
UICC Stage | TNM | Explanation | ||
---|---|---|---|---|
Stage IA | T1a | N0 | M0 | Mesothelioma in the pleural layer that lines the chest wall on ipsilateral parietal pleura. It does not involve the visceral pleura. It has not spread to lymph nodes or distant organs. |
Stage IB | T1b | N0 | M0 | Mesothelioma in the parietal pleura with focal tumors on the visceral pleura on one side of the chest. It has not spread to lymph nodes or distant organs. |
Stage II | T2 | N0 | M0 | Mesothelioma in any of the pleural surfaces (parietal pleura, pleura lining the mediastinum or diaphragm, and visceral pleura) on one side of the chest. It has also grown into at least one of the following:
It has not spread to lymph nodes or distant organs. |
Stage III | T1-T2 | N1 | M0 | Mesothelioma in the parietal pleura, the visceral pleural, or both, on one side of the chest. It may or may not have grown into at least one of the following:
It has spread to the lymph nodes on the same side of the chest as the mesothelioma. These lymph nodes that contain cancer may be:
It has not spread to distant organs. |
T1-T2 | N2 | M0 | Mesothelioma in the parietal pleura, the visceral pleural, or both, on one side of the chest. It may or may not have grown into at least one of the following:
It has spread to the lymph nodes on the same side of the chest as the mesothelioma. The lymph nodes that contain cancer may be:
It has not spread to distant organs. | |
T3 | N0-N2 | M0 | Mesothelioma involves any of the pleura on one side of the chest and has grown into at least one of the following:
It may or may not have spread to lymph nodes closest to the ipsilateral lung, trachea, sternum, or mediastinum. | |
Stage IV | T4 | any N | M0 | Mesothelioma involves any of the pleura on one side of the chest and has grown into at least one of the following:
It may or may not have spread to lymph nodes. It has not spread to distant organs. |
any T | N3 | M0 | Mesothelioma is any size and may or may not have grown into nearby tissues or organs. It has spread to lymph nodes in one of the following locations:
It has not spread to distant organs. | |
any T | any N | M1 | Mesothelioma of any size and may or may not have grown into nearby tissues or organs. It may or may not have spread to the lymph nodes. |