Moyamoya syndrome

Moyamoya syndrome, also termed the moyamoya pattern or phenomenon, is due to numerous conditions that can cause arterial occlusion of the circle of Willis, with resultant collaterals, and appearances reminiscent of moyamoya disease. These conditions include 1-4 :

Share article

Article information

rID: 10725
Section: Syndromes, Gamuts
Synonyms or Alternate Spellings:
  • Moya moya phenomenon
  • Moyamoya phenomenon
  • Moya moya pattern
  • Moyamoya pattern
  • Moyamoya syndrome

Support Radiopaedia and see fewer ads

Cases and figures

  • Case 1
    Drag here to reorder.
  • Case 2
    Drag here to reorder.
  • Case 3
    Drag here to reorder.
  • Characteristic "p...
    Case 4: background sickle cell disease
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.