Figure 3From: 64Cu-DOTA-trastuzumab PET imaging and HER2 specificity of brain metastases in HER2-positive breast cancer patients Histological distributions of 64 Cu-radioactivity and HER2-positive tumor cells. Left column: HE staining; middle column: IHC; right column: autoradiography. Loupe images (upper panels) show identical distribution of radioactivity and location of HER2-positive tumor cells for HE stain, IHC, and autoradiography samples. Magnified images (lower panels, ×200) confirmed the radioactivity and HER2-positive status of tumor cells.Back to article page