Aortic Aneurysm, Familial Thoracic 4, also known as aortic aneurysm/aortic dissection and patent ductus arteriosus, is related to loeys-dietz syndrome 2 and aortic aneurysm, familial abdominal, 1. An important gene associated with Aortic Aneurysm, Familial Thoracic 4 is MYH11 (Myosin Heavy Chain 11), and among its related pathways/superpathways are Signal Transduction and ERK Signaling. The drugs Cefazolin and Racepinephrine have been mentioned in the context of this disorder. Affiliated tissues include smooth muscle and spinal cord, and related phenotypes are aortic dissection and carotid artery stenosis