Figure 4.

Operated case of glioblastoma multiforme, isocitrate dehydrogenase (IDH) wild type with recurrence (green arrows), shows uptake in the left occipital lobe in ¹⁸F-dihydroxyphenylalanine(DOPA) PET-AC(attenuation corrected) (a) and color-coded positron emission tomography images (e), enhancement (b) and washout in 75-min delayed T1 contrast (c), enhancement in subtracted T1 contrast image (f), no diffusion restriction (d) due to areas of hemorrhage. Adjacent postoperative collection (asterisk) with no metabolic uptake and no enhancement seen in the left occipital region