Fig. 2. Some classic benign lesions classified as O-RADS category 2.

A. A cystic lesion in a 26-year-old woman with a maximum diameter of 62 mm contains homogeneous low-level echoes that are typical of endometrioma. B. A cystic lesion in a 30-year-old woman with a maximum diameter of 38 mm is depicted with fine intersecting lines depicting fibrin strands and an echogenic component with margins representing a retracting clot. C. A typical dermoid cyst is visible in a 28-year-old woman with a maximum diameter of 38 mm, containing hyperechoic lines and dots indicating hairy contents. O-RADS, Ovarian-Adnexal Reporting and Data System.