RT Journal Article
SR Electronic
T1 The Many Faces of Persistent Stapedial Artery: CT Findings and Embryologic Explanations
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
DO 10.3174/ajnr.A6851
A1 LoVerde, Z.J.
A1 Shlapak, D.P.
A1 Benson, J.C.
A1 Carlson, M.L.
A1 Lane, J.I.
YR 2020
UL http://www.ajnr.org/content/early/2020/11/05/ajnr.A6851.abstract
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