Ivy sign (brain)

Dr Henry Knipe and A.Prof Frank Gaillard et al.

The ivy sign refers to the MRI appearance of patients with moya moya disease or moya moya syndrome. Prominent leptomeningeal collaterals result in vivid contrast enhancement and high signal on FLAIR due to slow flow. The appearance is reminiscent of the brain having been covered with ivy.

Differential diagnosis

Inspired signs
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Article information

rID: 10726
Section: Signs
Tags: mri, cases, refs, cases
Synonyms or Alternate Spellings:
  • Ivy sign of moyamoya syndrome
  • Ivy sign of moyamoya disease

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Cases and figures

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    Case 1
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    Case 2: axial FLAIR
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    Case 3: T1C+
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