RT Journal Article SR Electronic T1 Klippel-Feil Syndrome and Sprengel Deformity Combined with an Intraspinal Course of the Left Subclavian Artery and a Bovine Aortic Arch Variant JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 306 OP 307 DO 10.3174/ajnr.A0878 VO 29 IS 2 A1 Floemer, F. A1 Magerkurth, O. A1 Jauckus, C. A1 Lütschg, J. A1 Schneider, J.F. YR 2008 UL http://www.ajnr.org/content/29/2/306.abstract AB SUMMARY: We present a case of Klippel-Feil syndrome and Sprengel deformity with a bovine aortic arch and an aberrant course of the left subclavian artery in a 14-year-old boy. CT and MR imaging of the neck and upper thorax demonstrated a cervical osseous segmentation anomaly, a left common carotid artery originating from the innominate artery, and a left subclavian artery coursing through the intraspinal space at the C6 through T1 level. Possible embryonic mechanisms and clinical significance of this variant are reviewed.