Bilateral lower extremity weakness and dizziness. There is extensive encephalomalacia in the left middle cerebral artery, predominantly involving the inferior left frontal lobe, with associated regional gyriform susceptibility effect and ex vacuo dilatation of the left lateral ventricle. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is minimal mucosal thickening int he right ethmoid sinuses.
Chronic left middle cerebral artery territory infarct, but no evidence of acute intracranial hemorrhage, mass, or acute infarct.