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Brain MRI. Axial (a), sagittal (b) and frontal (c) contrast T1−weighted image demonstrates a large (83 × 58 × 62 mm) heterogeneously enhancing tumor in the left frontal lobe, results in a midine shift to the right side to 12 mm. Arterial Spin Labeled MRI Perfusion Imaging (d,e): elevated regional Cerebral blood perfusion (rCBF) and Cerebral blood volume (CBV) in lesion. Mean transit time (MTT) and Time to peak (TTP) is prolonged. MR spectroscopy (MRS): elevated choline/creatine peaks.
