Abnormal aortic morphology Vascular dilatation Ascending tubular aorta aneurysm HP:0005111 HP:0004970 Ascending aortic dilation Aneurysm of the ascending tubular aorta Dilatation of ascending aorta HP:0005128 Fyler:2701 SNOMEDCT_US:253645007 Aneurysm is considered a severe form of dilatation. Fyler:2310 Bulging of wall of large artery located above heart Ascending aortic aneurysm Ascending aorta dilation An abnormal localized widening (dilatation) of the tubular part of the ascending aorta. UMLS:C0345049