Figure legends
Figure 1: Computed tomography and its schema showing the 63-mm ascending
aorta near the proximal anastomosis site. Arrows indicate an ascending
aortic aneurysm compressing the right atrium.
Figure 2: Histological findings of the aneurysmal wall with severe
atherosclerotic changes. (a) Hematoxylin and Eosin (H&E) staining
highlights that the wall was composed of tunica intima (*), media (**),
and externa (***). The tunica intima thickened with the formation of
atheroma. (b) Masson-Goldner stain indicated the decrease of smooth
muscle (red stained fibers) and the disordered arrangements of elastic
fibers (brown to dark stained fibers). Some elastic fibers ruptured, and
fragmented fibers were observed (white arrow).