Figure 5.

Patient with suspected recurrent high grade tumor (WHO Grade 3 glioma) that was subsequently proven to represent treatment related changes. A: Axial T1 contrast MRI demonstrates 2 prior resection cavities with a small enhancing nodule (closed arrow) posterior to the larger cavity and a larger area of low signal intensity on T1 and high signal intensity on T2 (not shown). B: ¹²⁴I-CLR1404 axial PET demonstrates no uptake in neither the enhancing nodule nor the high T2 signal. C: Fused PET/MRI image further depicts these findings.