"Additionally, a large proportion of these cases are associated with varicella infection in the previous 12 months, thus fulfilling the criteria for post-varicella arteriopathy 1."
"Non-atherosclerotic arteriopathies account for 29–53% 2 of stroke events in children. Causes include focal cerebral arteriopathy of childhood, arterial dissection and moyamoya disease. Focal cerebral arteriopathy of childhood has rarely been described in young adults."
"unilateral stenosis/irregularity of distal ICA, proximal MCA and/or proximal ACA"
"vessel wall imaging: wall thickening and concentric enhancement postcontrast study"