Table 3:

Distribution of ultrasound features in benign and malignant lesions (not significant), note: there was calcification within the malignant lesion; in one benign lesion there was calcification within the lesion, in the other was outside the lesion.

Ultrasound feature	Number of malignant lesions (%)	Number of benign lesions (%)	P-value
Echo pattern			P= 0.503
Hypoechoic	7 (25.9%)	20 (74.1%)
Isoechoic	3 (42.9%)	4 (57.1%)
Heterogeneous	7 (61.1%)	11 (61.1%)
Others	0	5 (100%)
Posterior features			P= 0.078
None	12 (25%)	36 (75%)
Enhancement	0	1 (100%)
Shadowing	4 (66.7%)	2 (33.3%)
Combined	1 (50%)	1 (50%)
Calcifications			P=0.662
None	16 (29.6%)	38 (70.4%)
Present	1 (33.3%)	2 (66.7%)
Vascularity			P= 0.295
Absent	3 (15.8%)	16 (84.2%)
Internal	3 (27.3%)	8 (72.7%)
Vessels in rim	1 (50%)	1 (50%)
No data	10 (40%)	15 (60%)