Abstract
The patient was a 43-year-old male who presented with heart murmur. Echocardiography, chest CT, and cardiac catheterization data showed extracardiac extension of an aneurysm of the noncoronary sinus, compressing the right atrium, right ventricular outflow tract, and superior vena cava. Severe aortic regurgitation was also recognized. The aneurysm was incised under extracorporeal circulation. The orifice of the aneurysm was closed, and the elongated annulus of the noncoronary sinus was corrected with woven Dacron patch. Mild aortic regurgitation was shown on postoperative aortogram, and the case is being carefully followed up.
