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Stages of Neuroblastoma

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    There are three ways that cancer spreads in the body.

    The three ways that cancer spreads in the body are:

    • Through tissue. Cancer invades the surrounding normal tissue.
    • Through the lymph system. Cancer invades the lymph system and travels through the lymph vessels to other places in the body.
    • Through the blood. Cancer invades the veins and capillaries and travels through the blood to other places in the body.

    When cancer cells break away from the primary (original) tumor and travel through the lymph or blood to other places in the body, another (secondary) tumor may form. This process is called metastasis. The secondary (metastatic) tumor is the same type of cancer as the primary tumor. For example, if breast cancer spreads to the bones, the cancer cells in the bones are actually breast cancer cells. The disease is metastatic breast cancer, not bone cancer.

    The following stages are used for neuroblastoma:

    Stage 1

    In stage 1, the tumor is in only one area and all of the tumor that can be seen is completely removed during surgery.

    Stage 2

    Stage 2 is divided into stage 2A and 2B.

    • Stage 2A: The tumor is in only one area and all of the tumor that can be seen cannot be completely removed during surgery.
    • Stage 2B: The tumor is in only one area and all of the tumor that can be seen may be completely removed during surgery. Cancer cells are found in the lymph nodes near the tumor.

    Stage 3

    In stage 3, one of the following is true:

    • the tumor cannot be completely removed during surgery and has spread from one side of the body to the other side and may also have spread to nearby lymph nodes; or
    • the tumor is in only one area, on one side of the body, but has spread to lymph nodes on the other side of the body; or
    • the tumor is in the middle of the body and has spread to tissues or lymph nodes on both sides of the body, and the tumor cannot be removed by surgery.
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