A 35-year-old man with a history of Behçet vasculitis who presented with left-sided weakness. A 35-year-old man with a history of Behçet vasculitis who.

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Presentation transcript:

A 35-year-old man with a history of Behçet vasculitis who presented with left-sided weakness. A 35-year-old man with a history of Behçet vasculitis who presented with left-sided weakness. DWI (A) demonstrates an acute infarct involving the right thalamus and posterior limb of the internal capsule (white arrow). Coronal 3D reformat of TOF MRA (B) reveals irregularity and narrowing of the M1 arterial segment of the right MCA (white arrow) and occlusion or high-grade stenosis of the P1 arterial segment of the right PCA (curved white arrow). On axial T1 postcontrast high-resolution VWI (C), there is prominent enhancement and enlargement of the right posterior cerebral artery (white arrow). Sagittal T1 postcontrast VWI (D) demonstrates typical tram-track, circumferential enhancement of the right M1 MCA (white arrow), consistent with vasculitic inflammation. T.R. Miller et al. AJNR Am J Neuroradiol 2015;36:1580-1588 ©2015 by American Society of Neuroradiology