Fig. 7
From: Imaging indications and findings in evaluation of lung transplant graft dysfunction and rejection
Bronchiolitis obliterans syndrome. Axial inspiratory (a) and expiratory (b) CT images show normal-appearing transplanted lungs on inspiratory phase and areas of air-trapping on expiratory phase. CT minimum intensity projection (MinIP) image (c) of a different patient shows mosaic attenuation and bronchiectasis. Pathologic findings of obliterative bronchiolitis (D); the lumen of this bronchiole is completely obliterated by fibrous tissue (green and yellow). Residual smooth muscle bundles: red. Elastic tissue: black (Movat pentachrome stain, 100×)