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

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Stage II

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Ovarian cancer stage IIA, IIB, and IIC. In stage IIA, cancer is found inside one or both ovaries and has spread to the uterus and/or the fallopian tubes. In stage IIB, cancer is found inside one or both ovaries and has spread to other tissues within the pelvis. In stage IIC, cancer is found inside one or both ovaries and has spread to the uterus and/or fallopian tubes and/or other tissue within the pelvis, 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 II, cancer is found in one or both ovaries and has spread into other areas of the pelvis. Stage II is divided into stage IIA, stage IIB, and stage IIC.

  • Stage IIA: Cancer has spread to the uterus and/or the fallopian tubes (the long slender tubes through which eggs pass from the ovaries to the uterus).
  • Stage IIB: Cancer has spread to other tissue within the pelvis.
  • Stage IIC: Cancer is found in one or both ovaries and has spread to the uterus and/or fallopian tubes, or to other tissue within the pelvis. Also, 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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Pea, peanut, walnut, and lime show tumor sizes.

Stage III

In stage III, cancer is found in one or both ovaries and has spread outside the pelvis to other parts of the abdomen and/or nearby lymph nodes. Stage III is divided into stage IIIA, stage IIIB, and stage IIIC.

  • Stage IIIA: The tumor is found in the pelvis only, but cancer cells that can be seen only with a microscope have spread to the surface of the peritoneum (tissue that lines the abdominal wall and covers most of the organs in the abdomen), the small intestines, or the tissue that connects the small intestines to the wall of the abdomen.
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    Stage IIIA ovarian cancer. In stage IIIA, cancer is found in one or both ovaries and has spread to other tissue within the pelvis. Cancer cells that can only be seen with a microscope have spread to the surface of the peritoneum. Cancer that has spread to the surface of the liver is also considered to be stage III.
  • Stage IIIB: Cancer has spread to the peritoneum and the cancer in the peritoneum is 2 centimeters or smaller.
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    Stage IIIB ovarian cancer. In stage IIIB, cancer is found in one or both ovaries and has spread to other tissue within the abdomen and to the peritoneum, where it is 2 centimeters or smaller in diameter. Cancer that has spread to the surface of the liver is also considered to be stage III.
  • Stage IIIC: Cancer has spread to the peritoneum and the cancer in the peritoneum is larger than 2 centimeters and/or cancer has spread to lymph nodes in the abdomen.
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    Stage IIIC ovarian cancer. In stage IIIC, cancer is found in one or both ovaries and has spread to (a) the peritoneum, where it is larger than 2 centimeters in diameter, and/or (b) lymph nodes in the abdomen. Cancer that has spread to the surface of the liver is also considered to be stage III.
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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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