Fig 1.

A 41-year-old woman with CNS vasculitis. 3T-HRMRI pre- and postgadolinium (A and B) T1-weighted arterial wall coronal images of terminal supraclinoid ICA and proximal M1 with strong smooth, concentric wall enhancement and thickening. C, MRA shows stenosis of the lumen and narrowing of M1 and the terminal supraclinoid ICA. Follow-up at 12 months. D and E, Pre- and post-gadolinium T1WI with near resolution of enhancement on coronal view. F, MRA with interval resolution of luminal narrowing and stenosis.