Aortic Aneurysm, Familial Thoracic 11, also known as aat11, is related to aortic aneurysm, familial thoracic 1 and familial thoracic aortic aneurysm and dissection. An important gene associated with Aortic Aneurysm, Familial Thoracic 11 is FOXE3 (Forkhead Box E3). Affiliated tissues include smooth muscle, and related phenotypes are ascending aortic dissection and descending aortic dissection