An incidental finding of localized aortic arch dissection in a polytraumatized patient. A case report and state of the art of aortic dissection.

Non-A non-B aortic dissection is considered a rare nosological entity, included in the Stanford classification, representing a small percentage of the total aortic dissections that occur annually. Regarding this form, the literature reports a more complicated disease course compared to other types of dissection. We describe the case of a 76-year-old patient who accessed the triage section of an emergency department for a polytrauma picture and, after surgical treatment of a leg fracture, received a diagnosis of non-A non-B aortic dissection, "localized" to the arch and incidentally detected.