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Virginia Oncology Associates

Virginia Oncology Associates

Mesothelioma

Cancer Center » Mesothelioma » Staging

Mesothelioma Staging

After a patient has been diagnosed with malignant mesothelioma, the doctor must perform tests to determine the stage of the disease. By determining the stage, the Virginia Oncology's cancer team is able to decide if cancer cells have spread to other parts of the body and the best, individualized treatment option for each patient.

Stages of Mesothelioma

The following stages are used for malignant mesothelioma:

Stage I (Localized)

Stage I is divided into Stages IA and IB:

  • In Stage IA, cancer is found in one side of the chest in the lining of the chest wall and may also be found in the lining of the chest cavity between the lungs and/or the lining that covers the diaphragm. Cancer has not spread to the lining that covers the lung.
  • In Stage IB, cancer is found in one side of the chest in the lining of the chest wall and the lining that covers the lung. Cancer may also be found in the lining of the chest cavity between the lungs and/or the lining that covers the diaphragm.

Stage II (Advanced)

In Stage II, cancer is found in one side of the chest in the lining of the chest wall, the lining of the chest cavity between the lungs, the lining that covers the diaphragm, and the lining that covers the lung. Also, cancer has spread into the diaphragm muscle and/or the lungs.

Stage III (Advanced)

Either of the following is true:

  • Cancer is found in one side of the chest in the lining of the chest wall. Cancer may have spread to:
    • the lining of the chest cavity between the lungs;
    • the lining that covers the diaphragm;
    • the lining that covers the lung;
    • the diaphragm muscle;
    • the lung.
  • Cancer has spread to lymph nodes where the lung joins the bronchus, along the trachea and esophagus, between the lung and diaphragm, or below the trachea.

or

  • Cancer is found in one side of the chest in the lining of the chest wall, the lining of the chest cavity between the lungs, the lining that covers the diaphragm, and the lining that covers the lung. Cancer has spread into one or more of the following:
    • The tissue between the ribs and the lining of the chest wall
    • Fat in the cavity between the lungs
    • Soft tissues of the chest wall
    • Sac that covers the heart
  • Cancer may have spread to lymph nodes where the lung joins the bronchus, along the trachea and esophagus, between the lung and diaphragm, or below the trachea.

Stage IV (Advanced)

In Stage IV, cancer cannot be removed by surgery and is found in one or both sides of the body. Cancer may have spread to lymph nodes anywhere in the chest or above the collarbone. Cancer has spread in one or more of the following ways:

  • Through the diaphragm into the peritoneum (the thin layer of tissue that lines the abdomen and covers most of the organs in the abdomen).
  • To the tissue lining the chest on the opposite side of the body as the tumor.
  • To the chest wall and may be found in the rib.
  • Into the organs in the center of the chest cavity.
  • Into the spine.
  • Into the sac around the heart or into the heart muscle.
  • To distant parts of the body such as the brain, spine, thyroid, or prostate.
Virginia Oncology Associates