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Fig 2. A 64-year-old woman with an atypical meningioma in the right frontal region confirmed on pathologic examination. Axial contrast-enhanced T1-weighted MR image (A) shows an enhancing mass in the right parasagittal frontal lobe. Three ROIs are outlined in the enhancing tumor area, peritumoral edema, and contralateral NAWM, respectively, for measurement of
1,
2,
3, and ADC and FA values. FA (B) and ADC (C) maps show location of ROIs. The tumor is hyperintense to the cortex on axial diffusion-weighted trace image (D).