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

Table 4

Changed category according to the pattern of contrast 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 = 19)	17	2
	4a (n = 14)	13	1
	4b (n = 16)	10	6
4b (n = 6)	4a (n = 3)	3	0
	4b (n = 1)	0	1
	4c (n = 2)	1	1
4c (n = 21)	4b (n = 6)	1	5
	4c (n = 3)	0	3
	5 (n = 12)	1	11