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Fig 1. DSA of the left internal carotid artery, lateral view. There is an abnormal blush within the apex of the left orbit (O) and a left intracerebral (I) AVM extending posteriorly along the left optic nerve, tract, and radiations. This is fed by distal branches from the left internal carotid artery, as well as the anterior cerebral artery, a prominent anterior choroidal artery, and thalamic perforators from the posterior communicating artery, not demonstrated in the current view.
