Contrast staining mimicking hemorrhage post-thrombectomy
Updates to Case Attributes
Updates to Study Attributes
Mechanical thrombectomy was complicated by dissociation of Solitaire stent-retriever in the left MCA. Over 300 ccHigh 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.
Updates to Study Attributes
Noncontrast CT head 25 days laterpost-thrombectomy demonstrates further resolution of contrast staining in the left MCA and ACA territories. Stable foci of hyperdensity remain in the left basal ganglia and subinsula in keeping with parenchymal hemorrhage.
Updates to Study Attributes
Noncontrast CT head 13 days later post(post-dialysis) was performed. The large regions of hyperdensity in the left ACA and MCA territories are significantly less dense, indicating interval washing out of contrast. Small residual foci of hyperdensity are seen in the left lentiform nucleus and subinsular region are suspicious for hemorrhage.
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