case_images: PMC3829302_01
case_images: 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
case_images: IJNL-12-166-g001.jpg
case_images: PMC3829302_01_IJNL-12-166-g001.jpg
case_images: F0001
case_images: 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).