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    Chief Complaint


    Organ System


    Patent Pending

    FIGO Staging for Ovarian Cancer (2014)

    Stages cancer of the ovary, fallopian tube, and peritoneum.
    When to Use

    Use postoperatively in patients with histologically-proven ovarian cancer (surgical pathology is needed in order to stage).

    • Stage IB (bilateral involvement) is uncommon and only occurs in 1-5% of stage I cases (Heintz 2006). Large stage IB ovarian tumors associated with a contralateral normal‐size ovary with small superficial tumor foci suggest the latter are metastatic (⅓ of stage I tumors with bilateral involvement look like this) (Prat 2013).

    • Controversy exists around whether positive lymph nodes (macroscopic) above the renal vessels should be considered stage III or IV, and are not addressed by the current guidelines.

    Tumor confined to ovaries
    Tumor involves 1 or both ovaries with pelvic extension (below the pelvic brim) or primary peritoneal cancer
    Tumor involves 1 or both ovaries with cytologically or histologically confirmed spread to the peritoneum outside the pelvis and/or metastasis to the retroperitoneal lymph nodes
    Distant metastasis excluding peritoneal metastasis


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    Creator Insights
    Dr. Jaime Prat

    About the Creator

    Jaime Prat, MD, is an honorary professor at Autonomous University of Barcelona and a senior consultant in pathology at Hospital Sant Pau in Barcelona, Spain. He is also a member of the World Health Organization (WHO) Committee for Classification of Tumors of the Female Genital Tract and the International Federation of Obstetricians and Gynecologists (FIGO). Dr. Prat’s primary research is focused on gynecologic oncology.

    To view Dr. Jaime Prat's publications, visit PubMed

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    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. Jaime Prat
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