Question:

What is RMI?

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RMI is used as a simple, effective tool for stratifying ovarian masses based on risk, guiding management decisions.
Updated On: Dec 10, 2025
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Solution and Explanation

Step 1: Definition of RMI.
RMI stands for Risk of Malignancy Index. It is a scoring system used to predict the likelihood of an ovarian mass being malignant. The RMI combines the following factors:
(1) Menopausal Status (1 point for premenopausal, 3 points for postmenopausal)
(2) Ultrasound Features (1-3 points based on features like multilocularity, solid areas, etc.)
(3) CA-125 Level (Measured in U/mL, with higher levels indicating greater risk).
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