Figure 2From: Alveolar epithelial cells undergo epithelial-mesenchymal transition in acute interstitial pneumonia: a case report Hematoxylin and eosin (H & E) stain. A, Lung biopsy revealed edema, hyaline membranes, and acute interstitial inflammation representing the exudative phase of DAD. B, Lung autopsy showed interstitial and intra-alveolar fibroblast proliferation, which is the feature of the fibrotic phase.Back to article page