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    Vulvar Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - Stages of Vulvar Cancer

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    There are three ways that cancer spreads in the body.

    Cancer can spread through tissue, the lymph system, and the blood:

    • Tissue. The cancer spreads from where it began by growing into nearby areas.
    • Lymph system. The cancer spreads from where it began by getting into the lymph system. The cancer travels through the lymph vessels to other parts of the body.
    • Blood. The cancer spreads from where it began by getting into the blood. The cancer travels through the blood vessels to other parts of the body.

    Cancer may spread from where it began to other parts of the body.

    When cancer spreads to another part of the body, it is called metastasis. Cancer cells break away from where they began (the primary tumor) and travel through the lymph system or blood.

    • Lymph system. The cancer gets into the lymph system, travels through the lymph vessels, and forms a tumor (metastatic tumor) in another part of the body.
    • Blood. The cancer gets into the blood, travels through the blood vessels, and forms a tumor (metastatic tumor) in another part of the body.

    The metastatic tumor is the same type of cancer as the primary tumor. For example, if vulvar cancer spreads to the lung, the cancer cells in the lung are actually vulvar cancer cells. The disease is metastatic vulvar cancer, not lung cancer.

    In vulvar intraepithelial neoplasia (VIN), abnormal cells are found on the surface of the vulvar skin.

    These abnormal cells are not cancer. Vulvar intraepithelial neoplasia (VIN) may become cancer and spread into nearby tissue. VIN is sometimes called stage 0 or carcinoma in situ.

    The following stages are used for vulvar cancer:

    Stage I

    In stage I, cancer has formed. The tumor is found only in the vulva or perineum (area between the rectum and the vagina). Stage I is divided into stages IA and IB.
    cdr0000415526.jpg
    Pea, peanut, walnut, and lime show tumor sizes.

    • In stage IA, the tumor is 2 centimeters or smaller and has spread 1 millimeter or less into the tissue of the vulva. Cancer has not spread to the lymph nodes.
    • In stage IB, the tumor is larger than 2 centimeters or has spread more than 1 millimeter into the tissue of the vulva. Cancer has not spread to the lymph nodes.
      cdr0000578121.jpg
      Millimeters (mm). A sharp pencil point is about 1 mm, a new crayon point is about 2 mm, and a new pencil eraser is about 5 mm.
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