CT evidence of vasculo-occlusive disease involving the terminal internal carotid arteries, proximal, middle cerebral arteries, and proximal right anterior cerebral artery with variable degrees of stenosis and collaterals formation.

This CT picture suggests Moyamoya syndrome (a term used to describe when Moyamoya disease occurs in conjunction with other systemic disorders, one of the associations is type 1 diabetes).

The reason for this association is yet to be understood, with many hypotheses pointing toward an autoimmune etiology ^1,2.