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Table 3 Description of MRI findings

From: Breast cancer diagnosed before the 40 years: imaging findings and correlation with histology and molecular subtype

MRI findings (n = 107)

n

%

 Mass

67

62,6

 Mass and non-mass enhancement

21

19,6

 Non-mass enhancement

17

15,9

 Negative findings

2

1,8

Masses (n = 88)

n

%

 Shape

  Round

3

3,4

  Oval

43

48,9

  Irregular

41

46,6

 Margin

  Circunscribed

8

9,1

  Irregular

54

61,4

  Spiculated

18

20,4

 Internal enhancement

  Homogeneous

11

12,5

  Heterogeneous

58

65.8

  Rim enhancement

14

15,9

 Kinetic curve (n = 60)

  Persistent

4

4,5

  Plateau

21

23,8

  Washout

35

39,8

Non-mass enhancement (n = 38)

n

%

 Distribution

  Focal

3

7,9

  Linear

15

39,4

  Segmental

10

26,2

  Regional

5

13,1

  Diffuse

1

2,6

  Multiple regions

2

5,3

 Internal enhancement

  Homogeneous

7

18,4

  Heterogeneous

20

52,6

  Clumped

3

7,9

  Cluestered rings

1

2,6

Associated Features

n

%

 None

52

48,6

 Skin invasion

16

14,9

 Nipple invasion

12

31,6

 Pectoralis muscle invasion

6

15,8

 Axillary adenopathy

37

34,6