From: Serum epidermal growth factor receptor and HER2 expression in primary and metastatic breast cancer patients
Status at metastasis
NME
EGFR
HER2
EGFR or HER2
CA15.3
CEA
CA15.3 or CEA
EGFR or HER2, or CA15.3 or CEA
Number (out of 50)
11
9
29
32
26
39
%
22
18
58
64
52
78