Table 2.

EGFR and MET immunohistochemistry and EGFR chromogenic in situ hybridization on basal-like breast carcinomas (MBC2, MBC4, MBC7, MBC10)

CaseSiteEGFR IHCEGFR CISHMET IHC
MBC2Primary1+Focally amplified1+
Axillary LN1+Not amplified1+
Bone1+Not amplified1+
Liver1+Not amplified1+
Adrenal1+Not amplified1+
Ovary1+Not amplified1+
Lung2+Not amplified1+
Diaphragm1+Not amplified1+
Abdominal LN2+Not amplified1+
MBC4Liver1+Focally amplified0
Pericardium1+Not amplified2+
Lung2+Focally amplified1+
Adrenal2+Not amplified0
Bone2+Not amplified0
Small Bowel3+Amplified0
MBC7Primary1+Not amplified1+
Axillary LN1+Not amplified2+
Mediastinal LN1+Not amplified1+
Diaphragm1+Not amplified2+
Bone1+Not amplified1+
Omentum1+Not amplified2+
Liver1+Not amplified1+
Right Adrenal1+Not amplified1+
Left Adrenal2+Not amplified1+
MBC10Primary1+Focally amplified1+
Lung3+Focally amplified1+
Hilar LN3+Not amplified1+
Liver3+Not amplified1+
Pericardium3+Not amplified1+
Adrenal3+Not amplified1+
Omentum3+Not amplified1+
  • Abbreviations: IHC, immunohistochemistry; CISH, chromogenic in situ hybridization.