From the case:
Bovine arch (illustration)
{"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/37515/annotated_viewer_json?iframe=true\u0026lang=us"}
Left ICA coming off the right brachiocephalic (so-called bovine arch) is a common variant of the aortic arch.