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(A) Schematic representation of pial artery with penetrating vessel (intracerebral arteries) and its intraparenchymal components. (B) After vessel occlusion there is a vasodilatory response with flow diversion and inflammatory process in the ischemic area. (C) Perpetuation of ischemic process increases inflammatory response; at this time if the vessel is reperfused, ischemic lesions (ex. hemorrhage) and/or distal occlusion may result in futile recanalization.
