Figure 1: Male patient, 35-year old with left parietal GBM. (a) SPECT and (b) fused SPECT/CT with 99mTc (v) DMSA showed no abnormal activity within the brain. (c) MRI showed enhancing lesion suggesting recurrence. Second biopsy 1 year later revealed gliosis. CT, computed tomography; DMSA, dimercaptosuccinic acid; GBM, glioblastoma multiform; SPECT, single photon emission computed tomography.