FIGURE 5. Invasive ductal adenocarcinoma (arrows) in pancreatic head of patient 17. 18F-FDG PET images obtained at 1 h, when tumor SUV was 6.0 (A), and at 2 h, when tumor SUV was 7.75 (B), with RI of 29.2%. Immunohistochemical staining of GLUT-1 (C) and of HK-II (D) shows overexpression of GLUT-1 and HK-II. Expression of GLUT-1 is observed mainly in membrane, whereas that of HK-II is observed mainly in cytoplasm. Percentages of strong expressed cells of GLUT-1 were scored as 50%–80%, and those of HK-II were scored as >80%. (x400; bar = 20 µm)
