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Figure 4: (a) CT angio showing bilateral proximal mca and aca narrowing with extensive posterior basal (collaterals) moyamoya. (b) DSA lateral view (left ICA injection) showing leptomeningeal collaterals suggestive of vault moyamoya along with basal as well as ethmoidal moyamoya. DSA = digital subtraction angiography, ICA = internal carotid artery, MCA = middle cerebral artery, ACA = anterior cerebral artery)

Figure 4: (a) CT angio showing bilateral proximal mca and aca narrowing with extensive posterior basal (collaterals) moyamoya. (b) DSA lateral view (left ICA injection) showing leptomeningeal collaterals suggestive of vault moyamoya along with basal as well as ethmoidal moyamoya. DSA = digital subtraction angiography, ICA = internal carotid artery, MCA = middle cerebral artery, ACA = anterior cerebral artery)