TY - JOUR A1 - , T1 - Embryological basis of coarctation in cervical aortic arch: Ductus caroticus anomaly JO - Eur. J. Anat. SN - 1136-4890 Y1 - 2020 VL - 24 SP - 519 EP - 521 UR - http://www.eurjanat.com/web/paper.php?id=200264sp KW - Cervical aortic arch – Coarctation – Ductus caroticus anomaly – Rathke’s aortic arch diagram N2 - Coarctation of the cervical aortic arch (CAA), though rare, is a clinical entity of embryological significance. Based on Rathke’s aortic arch dia-grams and Edward’s concept of functioning double aortic arch, we are postulating that the coarctation in a CAA occurs due to partial involution of the dor-sal aorta developed from the “ductus caroticus”. Hence coarctation in CAA should be classified as a “clinically significant aortic arch anomaly of ductus caroticus origin”. Conversely, location of coarctation in CAA substantiates the theory that embryogenesis of CAA is due to aortic arch devel-opment from the third or second branchial arch vessel, rather than the usual fourth arch vessel. ER -