fig 2.

A, Anteroposterior view of right ICA angiogram shows occlusion of the right ACA and high-grade stenosis of the right MCA (arrow).

B and C, Anteroposterior views of early (B) and late (C) arterial phases of left CCA angiogram show complete occlusion of the proximal left ACA and reconstitution of both pericallosal arteries (arrows) and the anterior communicating artery from leptomeningeal collaterals (arrowheads).

D and E, Lateral views of early (D) and late (E) arterial phases of left CCA angiogram show reconstitution of the pericallosal artery (arrows) in the late arterial phase by leptomeningeal collaterals