Table 1.

Basic patient and lesion characteristics

Characteristics	Benign lesions		Malignant lesions
	n = 146	%	n = 67	%
Age (years)
median	54		65
range	18–89		26–89
Lesion size (mm)
median	10		17
range	3–34		5–50
Side
left	89	61%	27	40.3%
right	57	39%	39	58.2%
left and right	0	0%	1	1.5%
Tumor Grade
1	–	–	9	13.4%
2	–	–	33	49.3%
3	–	–	25	37.3%
Histology of benign lesions	n = 74		–	–
fibrocystic disease	32	43%	–	–
benign proliferative breast disease	12	16%	–	–
fibroepithelial tumor	11	15%	–	–
intraductal proliferative lesion	10	14%	–	–
others	9	12%	–	–
Histology of malignant lesions	–	–	n = 67
invasive carcinoma NST	–	–	40	60%
invasive lobular carcinoma	–	–	13	19%
others	–	–	14	21%

Abbreviations: NST invasive carcinoma of no special type