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Vaginal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - Stages of Vaginal 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 vaginal intraepithelial neoplasia (VAIN), abnormal cells are found in tissue lining the inside of the vagina.

These abnormal cells are not cancer. Vaginal intraepithelial neoplasia (VAIN) is grouped based on how deep the abnormal cells are in the tissue lining the vagina:

  • VAIN 1: Abnormal cells are found in the outermost one third of the tissue lining the vagina.
  • VAIN 2: Abnormal cells are found in the outermost two-thirds of the tissue lining the vagina.
  • VAIN 3: Abnormal cells are found in more than two-thirds of the tissue lining the vagina. When abnormal cells are found throughout the tissue lining, it is called carcinoma in situ.

VAIN may become cancer and spread into the vaginal wall. VAIN is sometimes called stage 0.

The following stages are used for vaginal cancer:

Stage I

In stage I, cancer is found in the vaginal wall only.

Stage II

In stage II, cancer has spread through the wall of the vagina to the tissue around the vagina. Cancer has not spread to the wall of the pelvis.

Stage III

In stage III, cancer has spread to the wall of the pelvis.

Stage IV

Stage IV is divided into stage IVA and stage IVB:

  • Stage IVA: Cancer may have spread to one or more of the following areas:
    • The lining of the bladder.
    • The lining of the rectum.
    • Beyond the area of the pelvis that has the bladder, uterus, ovaries, and cervix.
  • Stage IVB: Cancer has spread to parts of the body that are not near the vagina, such as the lung or bone.
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WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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