Fig. 4. A solid lesion with a smooth outer margin classified as O-RADS category 5 due to very strong flow in color Doppler imaging.

A. A solid ovarian lesion in a 53-year-old woman is depicted with a smooth outer margin. B. Very strong flow is detected in a color Doppler examination. C. Liver metastasis is present, as a hyperechoic lobulated lesion in the right lobe is notable. O-RADS, Ovarian-Adnexal Reporting and Data System.