OBJECTIVE:

Compare the diagnostic performance of four malignancy risk indices in predicting ovarian risk at Hospital Christus Muguerza Conchita and Alta Especialidad.

MATERIALS AND METHODS:

Retrospective study including clinical records of patients older than 18 years with adnexal tumor treated at the Christus Muguerza Conchita and Alta Especialidad Hospital from 2016 to 2021. The ROC curve was used to evaluate the diagnostic performance of each index, through the obtaining the best cut-off point with the highest sensitivity and specificity from the Youden index.

RESULTS:

A total of 330 patients were included for the adnexal tumor assessment approach. The mean age of the patients was 38.8 years. For IRM1 an S 81.2% and E of 69.3% with a cut-off point at 126; IRM2 the best cut-off point was established at 210, with an S 72.5% and E of 89.3%; IRM3 the best cut-off point was established at 125, with an S 73.9% and E 85.8%; and for IRM4 the cut-off point was 436, with an S 68.1% and E 89.7%.

CONCLUSIONS:

MRI is an easy, low-cost and accessible method for the discrimination of patients with probable malignant adnexal mass. The use of any of the indices can be recommended in the Mexican population of northeastern Mexico.

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