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. 2024 May 29;39(2):87–97. doi: 10.4103/ijnm.ijnm_103_23

Figure 8.

Figure 8

Case of diffuse astrocytoma, not otherwise specified (NOS), isocitrate dehydrogenase1 (IDH1) negative, World Health Organization grade 2, Ponto medullary region, postradiotherapy. There are patchy hypermetabolic areas (black arrow) in the pons on 18F-dihydroxyphenylalanine(DOPA) PET-AC(attenuation corrected) (a) and color-coded positron emission tomography images (e) with few areas of diffusion restriction (d: red arrow) and no enhancement in immediate (b) and 75-min delayed contrast images (c) and subtracted T1 contrast images (f)