TY - JOUR T1 - Agenesis of the Internal Carotid Artery Associated with Aortic Arch Anomaly in a Patient with Congenital Horner’s Syndrome JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 929 LP - 931 VL - 23 IS - 6 AU - Hasan Dinç AU - Zekeriya Alioglu AU - Hidayet Erdöl AU - Ali Ahmetoglu Y1 - 2002/06/01 UR - http://www.ajnr.org/content/23/6/929.abstract N2 - Summary: We report a rare case of agenesis of the left internal carotid artery (ICA) and an aortic arch anomaly that presented with ipsilateral congenital Horner’s syndrome. Digital subtraction angiography revealed left ICA agenesis shortly after its origin and anastomosis between the left maxillary artery and the supraclinoid segment of the left ICA. Aortography of the aortic arch revealed the right subclavian artery arising as the first branch of a left aortic arch, followed by a bicarotid trunk and a left subclavian artery. High resolution CT of the skull base revealed the absence of the left carotid channel, consistent with congenital agenesis of the ICA. ER -