Table 2 Baseline characteristics and histopathologic results of Lesions

Mean age (years)

42.1 ± 11.6 (19–64)

50.7 ± 11.8 (26–76)

<0.001*

Menstruation state

<0.001*

Premenopausal

26 (63%)

38 (33%)

Postmenopausal

15 (37%)

78 (67%)

Side

0.640

Left

24 (59%)

63 (54%)

Right

17 (41%)

53 (46%)

Mean diameter (mm)

22.1 ± 17.1 (11.0-100.0)

26.0 ± 9.1 (10.0–60.0)

<0.001*

Histologic result (no.)

Fibroadenoma

21 (51%)

Invasive ductal carcinoma

96 (83%)

Adenoses

10 (24%)

Ductal carcinoma in situ

12 (10%)

Intraductal papilloma

5 (12%)

Invasive micropapillary carcinoma

4 (3%)

Benign phyllodes tumor

3 (7%)

Invasive lobular carcinoma

2 (2%)

Granulomatous mastitis

1 (3%)

Invasive cribriform carcinoma

1 (1%)

Usual ductal hyperplasia

1 (3%)

Carcinomas with medullary feature

1 (1%)

Shape

<0.001*

Round

23 (56%)

10 (8%)

Oval

12 (29%)

3 (3%)

Irregular

6 (15%)

103 (89%)

Enhancement

<0.001*

Homogeneous

30 (73%)

22 (19%)

Heterogeneous

8 (20%)

90 (78%)

Rim

3 (7%)

4 (3%)