Figure 2

Histopathological spectrum of chronic pleuroparenchymal disease in bone marrow transplantation patients. (a and b) Subpleural fibroelastosis in case 2, showing intra-alveolar fibrosis (*) and adjacent unaffected lung parenchyma (**) (visceral pleural surface bottom left; Haematoxylin & Eosin and Elastica-van Gieson stains, respectively). (c and d). Paraseptal parenchymal fibroelastosis in case 4, again showing intra-alveolar fibrosis (*) and adjacent unaffected lung parenchyma (**) (Haematoxylin & Eosin and Elastica-van Gieson stains, respectively). Obliterative bronchiolitis with total obliteration of terminal bronchiole (e) and fibroblastic plugging of ‘alveolar duct’ (f, *) in case 3.