FIGURE 4. Invasive ductal adenocarcinoma (arrows) in pancreatic head of patient 1. ¹⁸F-FDG PET images obtained at 1 h, when tumor SUV was 2.82 (A), and at 2 h, when tumor SUV was 2.48 (B), with RI of -12.1%. Immunohistochemical staining of GLUT-1 (C) and of HK-II (D) shows no significant strong expression of GLUT-1 or HK-II. Percentages of strong expressed cells of both proteins were scored as <20%. (x400; bar = 20 µm)

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