Bovine aortic arch: a potential indicator that may not serve in prenatal diagnosis – a study based on fetal anatomy, genetics, and postnatal clinical outcomes.

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For families affected by 16p11.2 syndromes, this study is reassuring because it shows that a bovine aortic arch seen on prenatal ultrasound is usually just a harmless anatomical variation, rarely linked to genetic conditions on its own, and most often associated with healthy outcomes after birth unless other significant abnormalities are also present.