Fig. 3
From: O-RADS combined with contrast-enhanced ultrasound in risk stratification of adnexal masses
Transvaginal ultrasonogram and pathological image of a left adnexal mass in a 59-year-old patient. A: Conventional ultrasound showed that the mass had a maximum diameter of 2.7 cm, regular in shape. CDFI showed the short strip-shaped blood flow signal inside the mass, which was classified as 4 by O-RADS. B: CEUS showed hypoenhancement at 38s(arrow); it was downgraded to 3 by O-RADS combined with CEUS. C: The pathological results revealed that it was the left ovarian fibrotheca cell tumor (HE × 40)