A pulsation artifact at the aortic root (arrow) mimicking an intimal flap. The fuzzy margins and simultaneous artifact in the main pulmonary artery (white arrowhead) helps distinguish the true injury from artifacts. Also seen in the same section is a traumatic intimal flap (blank arrow) with sharp margins in the descending aorta. An intraluminal thrombus (dashed arrow) is adjacent to it.