Moyamoya disease in a young woman with intraand extracranial vessels involvement on vessel wall imaging

@#Moyamoya disease (MMD) was first described in 1957 as “bilateral hypoplasia of internal carotid arteries (ICAs)”.1 Aside from involving the intracranial arteries, MMD can also affect extracranial ICAs and external carotid arteries (ECAs).2-4 High resolution magnetic resonance (MR) vessel wall imaging (VWI) is increasingly being used to help with the diagnosis and characterization of the condition focusing mainly on intracranial vessels and extracranial ICAs.5-9 We present a case of a young woman with MMD, demonstrating vessel wall enhancement of nonstenotic maxillary branches of bilateral ECAs.