Huge extracardiac SVA compressing the right atrium.

<p>A huge aneurysm arising from the aortic root extended toward the right and posteriorly (A). It originated from the non-coronary aortic sinus revealed by the short-axis view of the aortic root (B). Both the right ventricular inflow tract (C, D) view and the apex four-chamber view (E) show compression of the right atrium and the vortex flow in the aneurysm. Severe aortic regurgitation occurred (F). AN: aneurysm; AO: aorta; LA: left atrium; LV: left ventricle; PA: pulmonary artery; RA: right atrium; RV: right ventricle; RVOT: right ventricular outflow tract.