Table 1.

The clinicopathological parameters of all cases.

	Clinical characteristics		n	%	p
Breast malignant tumor	Gender	Male	0	0%	—
		Female	26	100%
	Age	≤50	12	46%	0.31
		>50	14	54%
	Pathology	Intraductal carcinoma	26	100%	—
	Histological grade	I	3	12%	—
		II	16	62%
		III	4	15%
	ER	Negative	13	50%	0.885
		Positive	13	50%
	PR	Negative	13	50%	0.66
		Positive	13	50%
	HER2	Negative	7	27%	0.3
		Positive	19	73%
	Lymph node	Negative	13	50%	0.02∗
		Positive	13	50%
Breast benign tumor	Gender	Male	3	30%	—
		Female	7	70%
	Age	<50	3	30%	—
		≥50	7	70%
	Pathology	Hyperplasia	4	40%	—
		Intraductal papilloma	1	10%
		Cystic disease and hyperplasia	3	30%
		Fibroadenoma	2	20%

  ^∗ p < 0.05 and this was considered statistically significant.