Table 4

HER2 status by serum, CTC, and tissue

Patient ID
Serum HER2
HER2 CTC
HER2 tissue

#25
Negative
ND
Negative
#93
Negative
ND
Negative
#94
Negative
ND
Negative
#21
Negative
ND
Negative
#92
Negative
ND
Negative
#29
Negative
ND
Negative
#30
Negative
ND
Negative
#91
Positive
Positive
Negative
#12
Negative
Negative
Positive
#17
Positive
Positive
Positive

CTC, circulating tumor cell; HER, human epidermal growth factor receptor; ND, not detected.

Fehm et al. Breast Cancer Research 2007 9:R74   doi:10.1186/bcr1783

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