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Contrast-enhanced computed tomography imaging shows a mildly enlarged and horizontally positioned aortic root compressing the RA (black arrows) and counterclockwise rotation of the heart. The diameter of ascending aorta, sinotubular junction, sinus of Valsalva, and aortic valve annulus were 41.8, 33.9, 40.2, and 25.5 mm, respectively. Ao, Aortic root.
