aortic disorder AE aortic dissection AE WEB: http://www.nlm.nih.gov/medlineplus/ency/article/000181.htm HPO: HP_0004933 SS an aortic disorder AE in which there is a separation of the aorta walls. The small tear can become larger. It can lead to bleeding into and along the wall of the aorta, the major artery carrying blood out of the heart. 10002895 SIDER: C0340643