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Figure 5b. Left temporal ganglioglioma in a 32-year-old man. (a) Fluid-attenuated inversion-recovery (FLAIR) MR image with overlying spectroscopic grid shows a T2 hyperintense mass. No enhancement was seen on postcontrast T1-weighted MR images (not shown). (b) Short-echo MR proton spectrum shows an elevated myoinositol (mI) peak (at 3.55 ppm). Cho = choline, Cr = creatine. (c) Multivoxel intermediate-echo MR proton spectroscopic color map of the choline/NAA ratio shows choline/NAA elevation.
