Fig. 1From: Intracranial arterial stenosis associated with Hashimoto’s disease: angiographic features and clinical outcomesAngiographic classification of the 42 affected hemispheres. Group A: stenosis/occlusion of IC bifurcation with moyamoya vessels. Group B: stenosis/occlusion of M1/A1 with moyamoya vessels. Group C: stenosis/occlusion of IC bifurcation without moyamoya vessels. Group D: stenosis/occlusion of M1/A1 without moyamoya vessels. Group E: stenosis/occlusion of M2–4/A2–4 without moyamoya vesselsBack to article page