RT Journal Article SR Electronic T1 Republished: Separate origins of the left internal and external carotid arteries from the aortic arch and cervical internal carotid artery aneurysm in a patient with Noonan syndrome JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP e11 OP e11 DO 10.1136/neurintsurg-2016-012482.rep VO 9 IS 4 A1 Tahir, Rizwan Ahmad A1 Asmaro, Karam A1 Pabaney, Aqueel A1 Kole, Max A1 Nypaver, Timothy A1 Marin, Horia YR 2017 UL http://jnis.bmj.com/content/9/4/e11.abstract AB Distinct origins of the external carotid artery and the internal carotid artery (ICA) from the aortic arch have been rarely described, and represent an aberrant development of the aortic arches during fetal life. This anatomical variation is usually discovered incidentally; infrequently, an aneurysm of the cervical ICA might accompany this rare configuration. We describe one such case in a patient with Noonan syndrome who presented with pulsatile neck mass. The diagnostic features and management of the aneurysm and a review of the literature are presented.