Keywords :
Adnexal mass, CA 125, Risk of malignancy indices
Citation Information :
Zunzunwala SS, Chavan NN. Comparison of Four Risk of Malignancy Indices in Preoperative Evaluation of Patients with Adnexal Masses. J South Asian Feder Obs Gynae 2023; 15 (6):658-661.
Background: The purpose of the study was to evaluate the efficacy of the risk of malignancy index (RMI) in differentiating benign from malignant adnexal lesions. This study also aims to find out the most appropriate index to diagnose the malignancy of the adnexal mass by comparison of four RMIs.
Materials and methods: Cross-sectional observational study of 75 women of all ages attending a gynecology outpatient clinic and admitted for exploratory surgery for a pelvic mass in a tertiary care hospital in central India during 2018–2020 has been carried out. Study parameters included the menopausal status, ultrasound features and sensitivity, specificity and positive predictive value of serum CA125 and RMI 1, RMI 2, RMI 3, and RMI 4 were calculated to determine whether the pelvic mass was benign or malignant.
Results: All four indices (RMI 1, RMI 2, RMI 3, and RMI 4) were significantly correlated with histopathological findings with a p-value < 0.001. On comparison, no statistically significant difference was observed among the four RMIs to differentiate malignant from benign ovarian masses (p > 0.05).
Conclusion: We concluded that the RMI is a simple, noninvasive, easily accessible and applicable, affordable, and inexpensive scoring system for assessing the adnexal masses. The four malignancy risk indices (RMI 1, RMI 2, RMI 3, and RMI 4) can precisely distinguish the benign from malignant pelvic masses.
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