Aortic dissection
Definition The term aortic dissection (Syn. Aneurysma dissecans aortae) describes a splitting (dissection) of the wall layers of the aorta. As a rule, the innermost wall layer (tunica intima) is suddenly torn open, resulting in bleeding between the wall layers (the aorta, like any artery, is made up of the three wall layers tunica intima, … Aortic dissection