Puff of smoke sign
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At the time the article was created Andrew Dixon had no recorded disclosures.View Andrew Dixon's current disclosures
At the time the article was last revised Mostafa El-Feky had no recorded disclosures.View Mostafa El-Feky's current disclosures
The puff of smoke sign describes the characteristic angiographic appearance of tiny abnormal intracranial collateral vessel networks in moyamoya disease. Progressive narrowing of the supraclinoid internal carotid arteries and circle of Willis vessels results in extensive small collateral arterial networks evolving from the lenticulostriate and choroidal arteries. When viewed angiographically, the abnormal collaterals simulate smoke emanating away from the major supplying artery.
- 1. Ortiz-neira CL. The puff of smoke sign. Radiology. 2008;247 (3): 910-1. doi:10.1148/radiol.2473050588 - Pubmed citation