Stage 1 Mesothelioma

Stage 1 mesothelioma is the earliest stage of the disease, in which the tumor is confined to a specific area and has not yet spread to other parts of the body. Very few mesothelioma cases are caught at Stage 1, but those which are typically live for about 21 months or longer.

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  • Butchart System

    The tumor is on one side and is limited to one area of the mesothelium. It may also be found in the diaphragm, but only on one side.

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    TNM System

    The tumor is on one side of the pleura or pericardium only and may have spread to the lung or diaphragm on the same side. No lymph node involvement.

  • Brigham System

    The tumor is can be operated on for removal. Catching the disease in Stage 1 is rare, due to the extremely long latency period.

Stage 2 Mesothelioma

Best Characterized

Stage 2 mesothelioma is best characterized by limited spreading to nearby organs and tissues. Few cases of mesothelioma are caught at Stage 2 or earlier, and individuals typically live for only about 19 months or less.

Stage 3 Mesothelioma

In the four-tiered staging system that is used to classify the progression and severity of cancer, Stage 3 mesothelioma is considered an advanced stage of the disease, though it is not the most advanced.

The primary characteristic that differentiates Stage 3 mesothelioma from other stages is that, in Stage 3, the cancer has spread to nearby areas. It may have spread to neighboring organs, tissues, and possibly nearby lymph nodes. However, in Stage 3, the mesothelioma has not yet spread to more distant regions of the body.

Stage 4 Mesothelioma

The standard way of classifying the severity and progression of cancer is using a four-tiered staging system. In this system, Stage 4 mesothelioma is the latest stage, and is usually considered terminal.

The most notable feature of Stage 4 mesothelioma is that the cancer has spread beyond its point of origin. This circumstance, known as metastasis, means that cancerous cells can be found throughout the body, including in lymph nodes and organs far from where it started.