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PT  - JOURNAL ARTICLE
AU  - LoVerde, Z.J.
AU  - Shlapak, D.P.
AU  - Benson, J.C.
AU  - Carlson, M.L.
AU  - Lane, J.I.
TI  - The Many Faces of Persistent Stapedial Artery: CT Findings and Embryologic Explanations
AID  - 10.3174/ajnr.A6851
DP  - 2020 Nov 05
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2020/11/05/ajnr.A6851.short
4100  - http://www.ajnr.org/content/early/2020/11/05/ajnr.A6851.full
AB  - SUMMARY: Persistent stapedial artery is a vascular anomaly with both clinical and surgical implications. Because of its scarcity, however, it remains underrecognized on imaging. Presented here is a series of 10 cases, demonstrating characteristic CT findings associated with this vascular anomaly and its most common pathognomonic imaging signs. The variable morphologic configurations and their corresponding embryologic underpinnings are described. Clinical and surgical implications of this rare anomaly are discussed.PSApersistent stapedial arteryMMAmiddle meningeal arteryCCAcommon carotid arteryCTCcaroticotympanic canaliculusITCinferior tympanic canaliculusCHLconductive hearing lossECAexternal carotid arteryICAinternal carotid arteryCTAcaroticotympanic arteryITAinferior tympanic arteryFNCfacial nerve canal