Figure 4

Obliterative bronchiolitis lesions in patients with restrictive allograft syndrome. (a) Obliterative bronchiolitis lesion within an area of fibroelastosis (elastic trichrome stain, original magnification × 50); (b) Obliterative bronchiolitis lesion within area of non-fibroelastotic lung tissue (elastic trichrome stain, original magnification × 50).