Dissection of the ascending aorta on transesophageal echocardiography

The transesophageal echocardiogram shows a large dissection involving the ascending aorta (Ao) and the aortic valves. The false lumen (FL) impinges upon the aortic valve leaflets and impairs their function. Spontaneous echo contrast can be seen within the false lumen, a result of turbulent blood flow.