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Ovarian Germ Cell Tumors Treatment (PDQ®): Treatment - Patient Information [NCI] - Stages of Ovarian Germ Cell Tumors

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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 ovarian germ cell tumors:

Stage I

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Ovarian cancer stage IA, IB, and IC. In stage IA, cancer is found inside a single ovary. In stage IB, cancer is found inside both ovaries. In stage IC, cancer is found in one or both ovaries and one of the following is true: (a) cancer is found on the outside surface of one or both ovaries, (b) the capsule (outer covering) of the ovary has broken open, or (c) cancer cells are found floating in the peritoneal fluid surrounding abdominal organs or in washings of the peritoneum.

In stage I, cancer is found in one or both ovaries. Stage I is divided into stage IA, stage IB, and stage IC.

  • Stage IA: Cancer is found inside a single ovary.
  • Stage IB: Cancer is found inside both ovaries.
  • Stage IC: Cancer is found inside one or both ovaries and one of the following is true:
    • cancer is also found on the outside surface of one or both ovaries; or
    • the capsule (outer covering) of the ovary has ruptured (broken open); or
    • cancer cells are found in the fluid of the peritoneal cavity (the body cavity that contains most of the organs in the abdomen) or in washings of the peritoneum (tissue lining the peritoneal cavity).
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