Fig. 8. A multilocular ovarian lesion with a solid component classified as O-RADS category 5 due to the presence of ascites and a peritoneal nodule.

A. A multilocular ovarian lesion with a solid component is detected in a 40-year-old woman. B. The solid component has minimal flow in the color Doppler evaluation. C. The findings would individually support classifying the lesion as O-RADS category 4, but the presence of ascites and a peritoneal nodule (arrow) measuring 8.5 × 3 mm indicated a higher risk of malignancy, and the lesion was classified as O-RADS category 5. The pathological diagnosis was high-grade serous carcinoma. O-RADS, Ovarian-Adnexal Reporting and Data System.