Table 1.

Clinical manifestations of patients received endoscopy-assisted breast surgery for benign disease

	N = 286 patients, 323 EABS
Patient
Gender (female)	323 (100%)
Age (years old)	36 ± 13 (range 13–69)
<20	31 ± 1(9.5%)
20–40	175 ± 6 (54.1%)
>40	117 ± 6 (36.2%)
Location
Unilateral	249 (90.5%)
Right	169 (52.3%)
Left	154 (47.6%)
Bilateral	37 (9.4%)
Distance to nipple (cm)	5.22 ± 1.14 cm (2–9 cm)
Characteristics of mass
Sonogram mean tumor size	2.9 ± 3.93 cm (0.62–20 cm)
<2 cm	150 (46%)
>2 cm	136 (42%)
Pathology mean tumor size	2.2 ± 1.05 cm (0.9–6.8 cm)
Specimen weight (g)	30.1 ± 27.5 g (7–133 g)
Number of mass per breast	1.04 ± 0.22 (range 1–3)
0 (microcalcification)	14
1	180
1 + microcalcification	2
2	4
3	1
N/A	78

N/A not applicable