= .22). Conclusion Approximately half of the benign lesions scored as O-RADS US 4 or 5 were cystadenomas or cystadenofibromas, followed by nonneoplastic lesions (including physiologic cysts and endometriomas) and benign neoplasms (dermoids). A solid component was the most frequent imaging observation of benign lesions scored as O-RADS US 4 or 5. © RSNA, 2026.
Jha et al. (Fri,) studied this question.