To Evaluate Accuracy of Ultrasonography and Magnetic Resonance Imaging in Characterizations of Adnexal Lesions and its Correlation with Post Operative Histopathology

Introduction: Adnexal lesions are one of the most common gynecological pathologies are benign in nature, but the malignant ones (10 percent) if not timely intervened can be lethal. When there is a clinical suspicion of adnexal lesions primary modality of choice for diagnosis will be always ultrasonography with Doppler study. About 20% of assessed lesions could be deemed sonographically indeterminate. In such cases Magnetic resonance Imaging will be performed and comparing results of both modalities with gold standard procedure Histopathology of patients will be done. Accurate diagnosis will aid in further management. Aim of the study: To evaluate accuracy of Ultrasonography and Magnetic resonance imaging in characterizations of adnexal lesions and its correlation with post operative histopathology. Results: In the present study age distribution varied from 15-60 years majority were noted among 31-35 years constituting 24.3%. Main symptom was abdominal pain followed by abdominal discomfort. Most common histopathological diagnosis was hemorrhagic cyst ovary constituting to 21.6% among benign lesions, serous cystadenoma ovary constituting to 10.8%. Ultrasonography correctly detected all benign adnexal pathologies, however, MRI detected malignant lesions such as serous cystadenocarcinoma and mucinous cystadenocarcinoma which were diagnosed as benign lesions in Ultrasonography MRI pelvis showed sensitivity of 97%, negative predictive value of 75% over Ultrasonography which showed sensitivity of 88.8% and negative predictive value of 75%. Conclusion: As in few cases ultrasonography fails to accurately differentiate neoplastic etiology, MRI due to its excellent soft tissue characterization and anatomical delineation gives conclusive results.