Fig. 3
The pathological images of the aortic wall and aortic valve. a The pathological image of aortic wall. The infiltration of inflammatory cells composed mainly of neutrophils and lymphocytes localized in the tunica media, and it is accompanied by angiogenesis. Cystic medial necrosis findings are not detected. A atheroma, TM tunica media, arrow head, internal elastic lamina. b The pathological image of aortic valve. Myxoid changes, fibrosis, and the partial infiltration of inflammatory cells were detected. Hematoxylin and eosin-stained section, magnification ×100 (a, b)