American Journal of Neuroradiology 20:271-274 (2 1999)
© 1999 American Society of Neuroradiology
ARTICLE
A Persistent Pharyngohyostapedial Artery: Embryologic Implications
a From the Department of Neuroradiology, Hôpital A. Michallon, BP 217, 38043 Grenoble Cedex 9, France.
Summary: A 3-year-old child was examined because of otorrhagia. CT scans showed an unusual vessel, confirmed by angiography, related to a persistent pharyngohyostapedial artery. This embryonic persistent artery associated with the normal internal carotid artery would explain the "duplication" aspect of the internal carotid artery.