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Fig. 2. Case 2. Before treatment, FLAIR was normal while DWI showed punctuate hyperintensities in the superficial MCA territory (inset) and a left MCA occlusion. Perfusion abnormalities existed in the superficial MCA territory, consistent with a large PWI/DWI mismatch. 24-hour MR imaging follow-up showed an additional lesion in the left putamen and MCA recanalisation after IA thrombolysis.
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