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(A) Contrast-enhanced T1W axial sequence showing a left frontoparietal necrotic mass in the vicinity of the central sulcus, consistent with a GBM (circle). (B–C) Diffusion weighted image/DWI shows increased signal intensity with corresponding decreased signal intensity on the apparent diffusion coefficient/ADC map within areas of enhancing tumor seen in A (circles). This restricted diffusion pattern is seen in highly cellular tumors such as GBM.
