Figure 1.

Non-contrast cranial CT on admission (90 minutes after stroke onset) revealed no early ischemic stroke changes (A). MRI revealed acute superior division infarction of the left middle cerebral artery at left insular (arrow) and frontal opercular (arrow head) regions. Diffusion-weighted MRI was performed 3 hours after onset of symptoms (B). MRI revealed acute superior division infarction of the left middle cerebral artery at left insular and frontal opercular regions (apparent diffusion coefficient (ADC) map obtained from the same patient at the same time) (C). Lingual angioedema (D).