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A. A cystic lesion in a 29-year-old woman with a maximum diameter of 115 mm contains homogeneous low-level echoes that are typical of endometrioma. B. A typical dermoid lesion in a 22-year-old woman with a maximum diameter of 110 mm contains a hyperechoic component with an acoustic shadow. O-RADS, Ovarian-Adnexal Reporting and Data System.
