CEUS Helps to Rerate Small Breast Tumors of BI-RADS Category 3 and Category 4

Table 2

Changed category according to the type of enhancement in CEUS.

BI-RADS category	Changed BI-RADS category	Pathology
		Benign; (n = 77)	Malignant; (n = 30)
3 (n = 31)	2 (n = 23)	23	0
	3 (n = 6)	6	0
	4a (n = 2)	2	0
4a (n = 49)	3 (n = 20)	20	0
	4a (n = 15)	9	6
	4b (n = 14)	11	3
4b (n = 6)	4a (n = 2)	2	0
	4c (n = 4)	2	2
4c (n = 21)	4c (n = 8)	0	8
	5 (n = 13)	2	11