Fig. 6.

The multimodal ultrasound features of a malignant nonmass lesion attributed to invasive breast cancer (grade III, invasive micropapillary carcinoma) were verified through surgical pathological confirmation. (a) hypoechoic area with segmental distribution and multiple calcifications on B-mode ultrasound (arrows) (b) hypervascularity (level 3 in Adler classification) on color Doppler (c) scored 4 on strain elastography. Assessed as BI-RADS category 4 C by the two radiologists. Total points were 251 on the nomogram (74 points in segmental distribution, 72 points in calcification, 35 points in hypervascularity, 70 points in elasticity scored 4), resulting in a malignant risk value exceeding 0.9, in which intervention was required