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Yin-yang sign – of swirling blood flow with an aneurysm or…
Yin-yang sign – of swirling blood flow with an aneurysm or pseudo-aneurysm. It may be observed on various imaging modalities. On contrast enhanced CT studies the appearance may be due to mixing of...
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Inferior rib notching – refers to a remodeling deformity of the…
Inferior rib notching – refers to a remodeling deformity of the lower aspect of the ribs, usually induced by dilated intercostal vessels. Arterial dilatation most commonly occurs when there is...
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Puff of smoke sign - describes the characteristic angiographic…
Puff of smoke sign - describes the characteristic angiographic appearance of tiny abnormal intracranial collateral vessel networks in moyamoya disease. Progressive narrowing of the supraclinoid...
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Puff of smoke sign - describes the characteristic angiographic…
Puff of smoke sign - describes the characteristic angiographic appearance of tiny abnormal intracranial collateral vessel networks in moya moya disease. Progressive narrowing of the supraclinoid...
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