Fig. 1
From: Rheumatoid meningitis in the absence of rheumatoid arthritis: 2 cases
(A). T2-weighted MRI showing decreased signal of the right sulci over the right frontoparietal lobe. (B). T2-FLAIR demonstrating increased signal with obliteration of sulci due to leptomeningeal thickening over the right frontoparietal lobe. (C). DWI showing an increased leptomeningeal signal. (D). Axial post-gadolinium T1-weighted image demonstrating unilateral enhancement of the right leptomeninges