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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.

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.

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.

Stage II

In stage II, the tumor is any size and has spread into the lower part of the urethra, the lower part of the vagina, or the anus. Cancer has not spread to the lymph nodes.

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