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Risk of Malignancy Index for Ovarian Cancer

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Risk of Malignancy Index for Ovarian Cancer, RMI Scoring System for Ovarian Cancer Risk

  • See Also
  1. Adnexal Mass
  2. Ovarian Cancer
  • Indications
  1. Suspected Ovarian Malignancy (e.g. Adnexal Mass)
  • Criteria
  • Ultrasound (assign 1 point if 1 characteristic, 2 points if >1 characteristic)
  1. Bilateral lesions
  2. Findings consistent with metastases
  3. Solid areas
  4. Multilocular cyst
  5. Ascites
  • Criteria
  • Menopausal Status
  1. Premenopausal: 1 point
  2. Postmenopausal: 3 points
  1. Use actual level in U/ml in calculation
  • Calculation
  1. RMI = U * M * C
  2. Where U is Ultrasound criteria, M is menopausal status, and C is CA-125 level
  • Interpretation
  1. RMI >200 is associated with a higher Ovarian Cancer risk
  2. RMI Threshold may vary by ethnicity and race
  • Efficacy
  1. Test Sensitivity: 79%
  2. Test Specificity: 92%
  • Resources
  1. Risk of Malignancy Index (MDCalc)
    1. https://www.mdcalc.com/calc/10103/risk-malignancy-index-rmi-ovarian-cancer
  • References
  1. Dodge (2012) Curr Oncol 19(4): e244-57 [PubMed]