Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
Medientyp:
E-Artikel
Titel:
The “Ivy-Sign” in Moyamoya Disease—From MRI Pattern to Diagnosis
Beteiligte:
Gburek-Augustat, Janina;
Sorge, Ina;
Merkenschlager, Andreas
Erschienen:
Georg Thieme Verlag KG, 2020
Erschienen in:Neuropediatrics
Sprache:
Englisch
DOI:
10.1055/s-0040-1708546
ISSN:
1439-1899;
0174-304X
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Abstract</jats:title><jats:p>Moyamoya disease (MMD) is characterized by bilateral, chronic progressive stenosis at the terminal portions of the internal carotid arteries and their proximal branches. The “smoke-like” appearance of the arterial collaterals in angiography gives the disease its name. The “ivy-sign” is the less-known magnetic resonance imaging (MRI) pattern of this disease. The leptomeningeal collaterals present as diffuse signal enhancement at the brain surface in contrast-enhanced T1-weighted image and fluid-attenuated inversion recovery sequences “as if overgrown with ivy.”</jats:p><jats:p>We report on three patients with MMD in whom the “ivy-sign” was already present but misinterpreted in the initial MRI of the brain. The correct diagnosis was made only after repeated MRI.</jats:p><jats:p>Using three case studies, we describe the difficulties in the interpretation of the “ivy-sign” as an MRI pattern. Knowledge of the “ivy-sign” can be helpful, especially in diseases predisposing to MMD. If this MRI pattern is present, MMD should be considered and MR angiography should be added.</jats:p>