The University of Virginia School of Medicine reports that while some of the symptoms of an aortic aneurysm and an aortic dissection can be similar, there are also symptoms unique to each condition. The overall expression of these symptoms can vary greatly depending on the associated condition.
Chest pain is one of the most common symptoms associated with an aortic aneurysm, explains the University of Virginia School of Medicine. Full or partial paralysis and stroke-like symptoms are other common manifestations, but some people may show no symptoms whatsoever or only express feeling as though they have the flu. A thoracic aneurysm is more commonly asymptomatic until it ruptures. Symptoms following this rupture include a loss of consciousness, significant chest pain and difficulty breathing. Despite being different conditions with unique symptoms, having an aortic aneurysm or aortic dissection may predispose a person to having the other as well.