ERBB2 and breast cancer: All breast cancer subtypes excluding basal-like tumors: • BoneCompared with luminal A tumors, luminal/HER2 and HER2-enriched tumors were associated with: • Brain • Liver • LungBasal-like tumors: • Brain • Lung • distant nodal • A remarkably lower rate of metastasis to bone and liverTNCB nonbasal tumors disclosed similar metastatic sites; nonetheless, they were not accompanied by fewer liver metastases