Figure 2

Distribution of pleuroparenchymal fibroelastosis: areas of pleuroparenchymal fibroelastosis were typically subpleural, with overlying pleural fibrosis (a), with some cases also demonstrating pleuroparenchymal fibroelastosis in a paraseptal (b) or centrilobular (c) distribution. All photomicrographs are at × 50 original magnification. Elastic trichrome stain (a, b); hematoxylin and eosin stain (c).