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FIGURE 2. (A) Transaxial fusion images (gadolinium-DTPA-enhanced MRI in black and white; 68Ga-DOTA-TOC PET in green) show high tracer uptake by meningioma in left sphenoid wing, with infiltration into left cavernous sinus and physiologic uptake by pituitary gland (arrow). (B) Fitted time-activity curves are shown for volumes of interest covering meningioma and an arterial vessel. Corresponding kinetic parameters of meningioma were calculated with PMod software.