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Patient with recurrence of a high grade tumor (WHO Grade 4 glioma). A: Axial T1 contrast MRI demonstrates 2 separate foci of tumor enhancement. B: 124I-CLR1404 axial PET demonstrates concordant uptake in the medial enhancing tumor (open arrow) but no significant uptake in the lateral enhancing tumor (closed arrow). C: Fused PET/MRI image further depicts these findings.
