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RMI score (malignancy risk index)


  • RMI = U x M x s-CA 125

The RMI score (malignancy risk index) is calculated based on the s-CA 125 value, menopausal status (M), and evaluation of ultrasound (U).


Ultrasound criteria (U score)
Multilocular cyst 
Solide areas 1
Bilateral lesions  1
Ascites  1
Intraabdominal metastases  1
Menopausal status (M score) 
Premenopausal 1
Postmenopausal  3
  • Score 0–1: U=1                                                

  • Score 2–5: U=3
  • s-CA 125 (u/ml) (the actual value is used)

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