Predicting malignancy in adnexal masses by international ovarian tumor analysis (Simple rules) versus risk of malignancy index

Background: Ovarian cancers are 3rd most common in females India as of Globocan 2018. Preoperative differentiation between malignant and benign adnexal masses is necessary for choosing appropriate treatment both. Risk malignancy index (RMI) a scoring system based on the combination sonographic findings, menopausal status, serum levels CA 125. “IOTA Simple Rules” preoperative USG-based classification ovarian tumors, consisting B-features, M-features.Objective: To compare diagnostic accuracy International Tumor Analysis (IOTA) simple rules risk to discriminate masses.Methodology: A retrospective study, those women who fulfill inclusion criteria were subjected study. All recruited participants underwent either transabdominal or transvaginal ultrasound examination, both prior surgery. Ultrasound features used IOTA rules, RMI scoring, histopathology reports retrospectively collected from stored computerized database results analysed.Results: Of 75 masses, 70 (93.3%) pathologically benign, 4 (5.3%) 1 (1.3%) was borderline. The sensitivity specificity (100% 97.14%, respectively) significantly higher than (40% 94%) respectively. Conclusion: have good when comparing with RMI, identifying masses. can be day today practice assessing an mass.