Table 1 Clinical manifestations of patients received endoscopy-assisted breast surgery for benign disease

 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%)

 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)

 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