Loeys-Dietz Syndrome 2, also known as aortic aneurysm, familial thoracic 3, is related to loeys-dietz syndrome 1 and aortic aneurysm. An important gene associated with Loeys-Dietz Syndrome 2 is TGFBR2 (Transforming Growth Factor Beta Receptor 2), and among its related pathways/superpathways are Human Embryonic Stem Cell Pluripotency and NF-kappaB Pathway. Affiliated tissues include eye and bone, and related phenotypes are inguinal hernia and umbilical hernia