@1speechpick Yeah it is rare and I am not surprised he has not seen it before that does not mean, it does not exist as there are a number of documented cases where it has been causing Carotid compression/irritation/dissection and sometimes stroke. I have posted the internet image below on the thread I mentioned in my previous posts. These are Axial & Coronal images showing the Hyoid bone in between the bifurcation of the Carotid artery. The red arrow is pointing to the Hyoid Greater Cornu (horn). A & C are the axial images and B is coronal images in case you might want to check it in your head/neck CT. This is significant because the Hyoid Bone moves up/down with each swallowing (see the video below) also might slightly move when you turn your head along with Carotid artery which also moves with the neck a bit.
You can watch this video to see how the Hyoid bone moves with swallowing. Specially the last minutes of the youtube video with black and white imaging.
