Risk of Malignancy Index (RMI) Calculator
Estimate malignancy risk in ovarian masses.
Risk of Malignancy Index Form
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Understanding Your Results
The Risk of Malignancy Index (RMI) combines CA-125, menopausal status, and ultrasound features. RMI ≥ 200 (pre-menopausal) or ≥ 250 (post-menopausal) suggests high risk of ovarian malignancy.
Frequently Asked Questions
What is the Risk of Malignancy Index?
RMI combines menopausal status, ultrasound morphology, and serum CA-125 to estimate the risk of ovarian cancer before surgery.
What RMI score is considered high risk?
An RMI above 200 is generally considered high risk and warrants referral to a gynecologic oncologist.
Can RMI be used for all ovarian masses?
It is most validated for adnexal masses in postmenopausal women, though it is commonly used across age groups.
Is CA-125 always elevated in ovarian cancer?
No. Some ovarian cancers do not raise CA-125, and benign conditions can elevate it. RMI improves accuracy by adding imaging and menopausal status.
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