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Table 4 Concordance in molecular surrogate subtypes between the largest primary tumor (PT1) and the second tumor (PT2) assessed with immunohistochemistry in specimens with ipsilateral multifocal primary breast cancer

From: Clinical evaluation of molecular surrogate subtypes in patients with ipsilateral multifocal primary breast cancer

  

PT2

 

Luminal A

Luminal B HER2-

Luminal B HER2 + 

Non-luminal HER2 + 

TNBC

Total

PT1

Luminal A

102

9

5

0

1

117

Luminal B HER2-

21

17

2

0

0

40

Luminal B HER2 + 

4

2

7

1

0

14

Non-luminal HER2 + 

1

0

0

3

0

4

TNBC

1

1

0

0

6

8

Total

129

29

14

4

7

183

  1. Data are presented as the number of specimens. HER2 Human epidermal growth factor 2, TNBC Triple-negative breast cancer, PT Primary tumor
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Breast Cancer Research

ISSN: 1465-542X

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