Fig. 2
From: O-RADS combined with contrast-enhanced ultrasound in risk stratification of adnexal masses
Transabdominal ultrasound and pathological image of a 23-year-old patient with a right adnexal mass. A: Conventional ultrasound indicated that the maximum diameter of the mass was 14.2 cm, irregular in shape and solid in appearance; CDFI showed the strip-shaped blood flow signal in the center of the mass, which was classified as 5 by O-RADS. B: CEUS 20s showed high annular enhancement at the rim of the mass, and there was no enhancement inside except for the separation, which was downgraded to 3 using O-RADS combined with CEUS. C: Pathological results indicated a right ovarian endometriosis cyst (HE × 40)