Common Carotid Artery Agenesis: Duplex Ultrasonographic Findings.
- Author:
Seong Jin YIM
1
;
Jung Ho RYU
;
Jong Sam BAIK
;
Jeong Yeon KIM
;
Jae Hyeon PARK
;
Sang Won HAN
Author Information
- Publication Type:Case Report
- Keywords: common carotid artery agenesis; ultrasonography; angiography
- MeSH: Angiography; Aorta, Thoracic; Brachiocephalic Trunk; Carotid Arteries; Carotid Artery, Common; Carotid Artery, External; Carotid Artery, Internal; Female; Headache; Humans; Middle Aged; Vertebral Artery; Vertigo
- From:Journal of Clinical Neurology 2009;5(3):149-150
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND: Agenesis of the common carotid artery (CCA) resulting in separation of the origin of the external carotid artery (ECA) and internal carotid artery (ICA) from the aortic arch is rare. Fewer than 25 cases have been reported, and correlative ultrasound data were available for only 1 of them. CASE REPORT: A 52-year-old woman visited the hospital with a 3-day history of vertigo and headache. Color-coded duplex ultrasonography performed to evaluate the carotid and vertebral arteries revealed a normal configuration on the left side. However, the right CCA could not be found; instead, there were two vessels of approximately equal size in close proximity to each other. The cerebral angiographic findings were consistent with the ultrasonographic findings. The ECA and ICA originated directly from the brachiocephalic trunk, and the ECA arose proximal to the ICA. CONCLUSIONS: The ultrasonographic findings revealed absence of the CCA, the ECA and ICA originating separately from the aortic arch. Color-coded duplex ultrasonography appears to be an effective and sensitive method for detecting absence of the CCA. These findings should help to further our understanding of the embryologic development of the carotid arteries.
