Enter the ultrasound score, menopausal status, and serum CA125 level into the calculator to determine the RMI.

## Rmi (Risk Of Malignancy Index) Formula

The following formula is used to calculate the Risk of Malignancy Index (RMI).

RMI = U * M * CA125

Variables:

- RMI is the Risk of Malignancy Index U is the ultrasound score M is the menopausal status (1 for premenopausal, 3 for postmenopausal) CA125 is the serum CA125 level (U/ml)

To calculate the Risk of Malignancy Index, multiply the ultrasound score by the menopausal status, then multiply the result by the serum CA125 level.

## What is a Rmi (Risk Of Malignancy Index)?

The Risk of Malignancy Index (RMI) is a scoring system used in gynecology to assess the risk of ovarian cancer in women presenting with an ovarian cyst or mass. It combines three diagnostic components: the ultrasound score, menopausal status, and serum CA-125 level (a blood protein that is often higher in women with ovarian cancer). The RMI is calculated by multiplying these three factors together, with a higher score indicating a higher risk of malignancy.

## How to Calculate Rmi (Risk Of Malignancy Index)?

The following steps outline how to calculate the Risk of Malignancy Index (RMI) using the given formula:

- First, determine the ultrasound score (U).
- Next, determine the menopausal status (M). Assign a value of 1 for premenopausal or 3 for postmenopausal.
- Next, determine the serum CA125 level (CA125) in U/ml.
- Next, use the formula RMI = U * M * CA125 to calculate the Risk of Malignancy Index.
- Finally, insert the values of U, M, and CA125 into the formula and calculate the RMI.

**Example Problem:**

Use the following variables as an example problem to test your knowledge:

ultrasound score (U) = 4

menopausal status (M) = 3

serum CA125 level (CA125) = 120 U/ml