Recurrent chest infection - came to rule out underlying malignant or parenchymal lung disease.
CT chest contrast
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Common origin of brachiocephalic trunk and left common carotid artery.
Other findings in this case
- deformed chest with increased AP diameter and associated scoliosis
- right sided cardiomegaly with straightened interventricular septum.
- main pulmonary trunk is larger than the ascending aorta suggestive of a pulmonary arterial hypertension component.
- parenchymal change of UIP pattern were seen (lung windows not depicted here).
Bovine arch is one of the more common forms of aortic arch variations we encounter in our daily practice. They are rarely symptomatic. Detection of one vascular variant should prompt detailed evaluation of others in the examined study.
- Layton, Kennith F., et al. "Bovine aortic arch variant in humans: clarification of a common misnomer." American Journal of Neuroradiology 27.7 (2006): 1541-1542. Pubmed citation