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Computed tomography (CT) angiogram of a 64-year-old male patient showing a large fusiform aneurysm of the ascending thoracic aorta measuring 53 mm maximum. The tricuspid valve (24mm) and the sinotubular junction (36mm) are seen. The presence of a calcified tricuspid aortic valve is also seen. (KEYSTONE/SCIENCE PHOTO LIBRARY/ZEPHYR)