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Examination of a 74-year-old man with a one-year history of mild, stable angina revealed a murmur consistent with the presence of aortic regurgitation. Echocardiography demonstrated severe aortic regurgitation as a result of marked dilatation of the aortic root (diameter, 5.4 cm in the proximal ascending aorta). Gadolinium-enhanced magnetic resonance angiography (Panel A) revealed saccular dilatation of the aorta from its root to beyond the distal arch (short arrows), with involvement of the innominate artery (long arrow). T1-weighted images also revealed evidence of mural thrombus in the superior aspect of the aneurysm, beyond the left subclavian artery (arrow in Panel . . . [Full Text of this Article] |
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