The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 1. —2-year-old boy with moyamoya disease.

C, Follow-up MR angiogram obtained 6 months after right encephaloduroarteriosynangiosis (EDAS) and 10 months after left EDAS shows good transdural collateral vessels (arrowheads) supplying MCA territories, which was interpreted as good bilaterally. Postoperative neurologic status was good for both hemispheres.