Histopathological analysis of the peritoneal patch explanted from pigs.

<p>Peritoneal graft pre-innestum (A), native aorta (B, C) and graft after two weeks (D–J). A) normal peritoneum, double staining with alfa-SMA (blue) and elastic von Gieson (black-brown) magnification 80×, scale bar 40 µm. B) native aorta, double staining showing the media with elastic fibres in black and smooth muscle cells in blue, magnification 50×, scale bar 50 µm. C) Native aorta, von Willebrand factor staining of the endothelium, magnification 160×, scale bar 20 µm. D) Graft and metallic scaffold (arrows indicate some of the holes around the graft), magnification 12,5×, scale bar 250 µm. E) graft remodeling, magnification 31× scale bar 100 µm. F) Arterialization of graft, magnification 62,5×, scale bar 50 µm. G) Intimal hyperplasia, magnification 125×, scale bar 25 µm. H, I) Endothelization of the graft, von Willebrand factor staining magnification 160× (scale bar 20 µm) and 320× (scale bar 10 µm), respectively.