Here is a case illustrating the imaging criteria of the O-RADS US 3 and O-RADS MRI 3 categories. Ovarian-Adnexal Reporting and Data System Ultrasound (O-RADS US) and Ovarian-Adnexal Reporting and Data System Magnetic Resonance Imaging (O-RADS MRI) aim to ensure that there are uniform unambiguous sonographic and MRI evaluations of ovarian or other adnexal lesions, accurately assigning each lesion to a risk category of malignancy being present, which informs the appropriate management to be instituted