PMC3829302_01
Sagittal and axial T2-weighted brain MRI showing hyperintense concentric onion-like mass in the right parieto-frontal periventricular white matter (A,B), axial FLAIR MRI showing hyperintense concentric pattern in the right parieto-frontal periventricular white matter (C), and coronal post-contrast T1-weighted image demonstrating some open ring enhancement of the lesion in the right parieto-frontal area
IJNL-12-166-g001.jpg
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Brain MRI revealed a tumefactive lesion in the right parieto-frontal periventricular white matter with alternating hypo-isointense and hyperintense concentric onion-like bands on T1- and T2-weighted and FLAIR, and partial enhancement in post-contrast images in parieto-frontal periventricular white matter with mild edema and no hemorrhage and restriction (Figure 1).