Figure 1From: Radial contrast enhancement on brain magnetic resonance imaging could be diagnostic of primary angiitis of the central nervous system: a case report and review of the literature Brain magnetic resonance images before (A-C) and after (D-F) treatment. (A) T2-weighted FLAIR imaging demonstrates bilateral, diffuse hyperintense lesions in the white matter with sparing of the cortical U fibers. T1-weighted images following intravenous gadolinium administration in the (B) axial and (C) coronal planes show bilateral, symmetrical, linear contrast enhancement in a radial distribution throughout the white matter of the cortex and brainstem (arrows). (D) Following treatment with steroids and cyclophosphamide, T2-weighted FLAIR imaging demonstrates a dramatic improvement of the hyperintense abnormalities and almost complete resolution of gadolinium enhancement on the T1-weighted images in the (E) axial and (F) coronal planes.Back to article page