Persisting carotid duct and proximal external carotid artery agenesis in an adult
Mugurel Constantin Rusu,
Adelina Maria Jianu,
Alexandra Diana Vrapciu
et al.
Abstract:The carotid duct (CD) is a transient embryological structure connecting the 3rd and 4th aortic arches. We found a persisting CD in an adult female case, by studying the computed tomography angiogram. On the left side, the proximal external carotid artery (ECA) agenesis was noted. The CD was inserted into the left subclavian artery and continued upwards to reach the level of the atlas, and then it descended to connect to a normally configured segment of that ECA. It could be speculated that the CD-to-ECA connec… Show more
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