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Pathological findings in patients with intramural hematoma (IMH) and aortic dissection (AD). (A) Intima thickening and fibrosis (arrow). Destruction of normal media architecture (×100). *, refers to the dissected media. (B) Destruction of normal media architecture, some smooth muscle nucleus absent and degeneration of matrix (×100). Dissected media (*), the outer part of media and adventitia are kept to encapsulate the graft (hematoxylin and eosin stain).
