Ovarian Cancer Stages
Staging is a standard way of categorizing cancers that is used to determine prognosis and treatment. The staging for ovarian cancer is as follows:
- Stage I: Cancer is confined to one or both ovaries
- Stage IA: Growth is limited to 1 ovary with no tumor on external surfaces
- Stage IB: Growth is limited to both ovaries with no tumor on external surfaces
- Stage IC: Tumor is either stage IA or IB, but with tumor on surface of one or both ovaries
- Stage II: Cancer has spread to the uterus or other nearby organs
- Stage IIA: Extension and/or metastases of cancer to the uterus and/or fallopian tubes
- Stage IIB: Extension of the cancer to other pelvic tissues
- Stage IIC: Tumor is at either stage IIA or IIB, but with tumor on surface of one or both ovaries
- Stage III: Cancer has spread to the lymph nodes or abdominal lining
- Stage IIIA: Tumor limited to the true pelvis
- Stage IIIB: Metastasis of abdominal peritoneal surfaces ≤ 2 cm. in diameter
- Stage IIIC: Peritoneal metastasis beyond the pelvis > 2 cm. in diameter
- Stage IV: Cancer has spread to distant organs, such as the lungs or liver
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