Mechanical thrombectomy was complicated by dissociation of Solitaire stent-retriever in the left MCA. High volume of Omnipaque contrast was used during the prolonged procedure. Noncontrast CT head 6-hours post thrombectomy (above) demonstrates the metallic stent in the left MCA, as well as large region of hyperdensity mimicking hemorrhage in the left frontal lobe MCA territory, involving the left basal ganglia, insula, and frontal operculum. There was no significant mass effect.