Figure 5
Diffuse alveolar damage in patients with restrictive allograft syndrome. (a) Diffuse alveolar damage, acute phase, characterized by intra-alveolar hyaline membrane material (hematoxylin and eosin stain, original magnification × 100); (b) diffuse alveolar damage, organizing phase, characterized by intra-alveolar fibroblastic plugs associated with interstitial inflammation and prominent reactive pneumocyte changes (elastic trichrome stain, original magnification × 100); (c) area of acute phase diffuse alveolar damage (left side of panel) merging into area of fibroelastosis (hematoxylin and eosin stain, original magnification × 100); (d) area of acute phase diffuse alveolar damage (left side of panel) merging into area of fibroelastosis (elastic trichrome stain, original magnification × 50).
