Table 1 The relation of the two groups (ROLL and WGL) with different clinical, radiological and surgical parameters

No.of patients

320

350

Age (year) (mean ± SD)

50.71 ± 9.72

51.67 ± 10.22

0.21

Clinical findings

 Screening

236(73.8%)

284(81.1%)

0.13

 Residual lesion after previous surgery

12 (3.8%)

11(3.1%)

0.13

 Residual lesion post neoadjuvant chemotherapy where clip was inserted

46(14.4%)

37 (10.6%)

0.13

 patients had simultaneous bilateral palpable and nonpalpable carcinoma

26(8.1%)

18(5.1%)

0.13

Mammographic findings

 Mass

165(51.5%)

193(55.1%)

0.14

 Microcalcifications

77(24.1%)

74 (21.1%)

0.14

 Asymmetry and Architectural distortion

25(7.8%)

35 (10.0%)

0.14

 Residual lesions post wide local excision

7 (2.2%)

11 (3.1%)

0.14

 Residual distortion post neoadjuvant chemotherapy with clip inserted inside it

46(14.4%)

37 (10.6%)

0.13

Density

 ACR A

8 (2.5%)

7 (2.0%)

0.08

 ACR B

279(88.6%)

283(82.5%)

0.08

 ACR C

26 (8.3%)

50 (14.6%)

0.08

 ACR D

2 (0.6%)

3 (0.9%)

0.08

Side

 Right

155(48.4%)

163(46.7%)

0.69

 Left

161(50.3%)

179(51.3%)

0.69

 Bilateral

4 (1.2%)

7 (2.0%)

0.69

Site

 UOQ

200(63.9%)

255(73.1%)

0.009

 LOQ

37(11.8%)

36(10.3%)

0.009

 UIQ

27 (8.6%)

32 (9.2%)

0.009

 LIQ

35(11.2%)

15 (4.3%)

0.009

 retroareolar

14 (4.5%)

11(3.2%)

0.009

 Size /cm (mean ± SD)

1.5cm

1.7cm

 < 0.001

Localization technique

 Ultrasound

264(82.5%)

267(76.3%)

0.05

 Stereotactic

56(17.5%)

83(23.7%)

0.05

Localization time(min)

 Ultrasound

8 min (range 5–10 min)

18 min(range 11–20 min)

P < 0.001

 Stereotactic

15 min (range 10–21 min)

22 min(range 20–25 min)

P < 0.001

Duration of surgical excision(min)

 mean ± SD

30 ± 20.3

40 ± 27.8

 median

33

45

P < 0.001