From the case:
Bovine arch
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/38883/annotated_viewer_json?iframe=true\u0026lang=us"}
Common origin of brachiocephalic trunk and left common carotid artery = bovine arch.
From the case:
Bovine arch
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/38884/annotated_viewer_json?iframe=true\u0026lang=us"}
Common origin of brachiocephalic trunk and left common carotid artery = bovine arch.
Case Discussion
This is a common variation of "normal" aortic arch anatomy, found in ~15% of people. The term bovine arch is a misnomer since this arrangement is not the typical finding in cattle.