Role of Magnetic Resonance Imaging in the Differentiation between Benign and Malignant Adnexal Masses

Introduction: Adnexal masses are common among women and are classified into benign and malignant lesions. This study aimed to evaluate the role of MRI in the characterization of adnexal masses in comparison to US. The objectives of this project were to asses the age group mostly affected by adnexal masses among women at Taif city; to emphasize the most common type of lesion among those patients; and to compare the level of agreement between MRI and US in the differentiation of different adnexal masses. Method: This study was conducted at different Taif hospitals and was performed retrospectively on 73 female patients. The cases were divided into seven age groups, start from under 20 years up to more than 70 years old with 10 years interval. Subjects were chosen as suspected cases of adnexal mass whom underwent US followed by MRI. Also, lab test CA-125 was taken in consideration as indicator for malignancy. Result: The most affected age group was between 41-50 years with percentage of 32 %. Below this age group and above it, percentage of patients diagnosed with adnexal mass gradually decrease. Cyst was the most detected adnexal lesion with percentage of 52 %. There was a high level of agreement between MRI and US in the differentiation between adnexal masses.