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Table 4 HER2 status of primary and matched recurrent lesion by in-situ hybridization

From: A retrospective study investigating the rate of HER2 discordance between primary breast carcinoma and locoregional or metastatic disease

PRIMARY

RECURRENCE

 

Negative

Negative Polysomic

Low Amplified

High Amplified

Negative

53

11

0

0

Negative Polysomic

9

6

0

0

Low Amplified

0

0 (2*)

2

5

High Amplified

1

0

1

26

  1. The 2* cases which did not contain breast malignancy upon central review were excluded.