Teenager with left sided weakness after a wrestling injury

MRA of internal carotid artery dissection
3D reconstruction from a MRA with contrast of the neck and brain shows tapering of the luminal diameter and decreased flow in the right internal carotid artery beginning at its horizontal segment until its terminus. The right middle carotid artery M1 and M2 segments are not visualized.

The diagnosis was distal right internal carotid artery dissection.