Table 3 ENE in ALN and nodal burden.

From: Prognostic value of extranodal extension in axillary lymph node-positive breast cancer

Nodal burden

ENE

p-value

Negative (244)

Positive (158)

Negative vs Positive

 ≤ 2 mm vs > 2 mm

 ≤ 3 mm vs > 3 mm

PD-ENE

CD-ENE

 ≤ 2 mm (98)

 > 2 mm (60)

 ≤ 3 mm (112)

 > 3 mm (46)

N stage

N1

87

14

6

13

7

   

N2

120

43

28

50

21

   

N3

37

41

26

49

18

 < 0.001

0.843

0.779

No. of removed axillary lymph nodes

 ≤ 20

154

61

26

63

24

   

 > 20

90

37

34

49

22

0.111

0.427

0.645

Median metastatic tumor diameter (cm)

 ≤ 0.7

120

29

21

36

14

   

 > 0.7

124

69

39

76

32

 < 0.001

0.497

0.835

Peri lymph node vascular invasion

No

142

40

24

46

18

   

Yes

102

58

36

66

28

0.001

0.748

0.823

No. of ENE foci

1–2

 

71

45

82

34

   

 > 2

 

27

15

30

12

 

0.283

0.929

  1. ENE extranodal extension; PD-ENE perpendicular diameter of extra-nodal extension; CD-ENE, circumferential diameter of extra-nodal extension.