title: The "ivy sign" of adult moyamoya disease.
abstract: We report an under recognized magnetic resonance postcontrast and fluid-attenuated inversion recovery sequence finding characteristic of adult Moyamoya disease in a young woman who presented with new onset headache and a history of migraine. The imaging finding of the "ivy sign" is presented, along with a brief discussion of the pathophysiology of this radiologic presentation of adult Moyamoya disease.
authors.affiliation: Department of Neurosciences Critical Care, Johns Hopkins University, Baltimore, MD 21231, USA. smarsh15@jhmi.edu
authors.forename: Scott
authors.initials: S
authors.lastname: Marshall
authors.forename: Jason S
authors.initials: JS
authors.lastname: Hawley
authors.forename: Paul A
authors.initials: PA
authors.lastname: Nyquist
authors.forename: Thomas
authors.initials: T
authors.lastname: Degraba
mesh_terms: D000328:Adult; D002339:Carotid Arteries / Q000473:pathology; D005260:Female; D005682:Gadolinium; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging / Q000379:methods; D009072:Moyamoya Disease / Q000473:pathology*; D009778:Occipital Lobe / Q000473:pathology
chemical_list: D005682:Gadolinium