ERBB2 and cancer: A 43-year-old patient with newly diagnosed cancer of the right breast (cT2 cN0 Mx; ER > 95%, progesterone receptor > 95%, Her2-neu score: 1, MIB-1 proliferation index 60%) underwent preoperative a [68Ga]Ga-RM2 PET/CT imaging on compassionate use basis.