Fig. 2

Chest X-ray image showing bilateral lung infiltrates and ground-glass opacities (A). High-resolution computed tomography image of chest image showing bilateral pulmonary ground-glass opacities and focal consolidations, suggestive of organizing pneumonia (OP) pattern (B). Transbronchial lung biopsy specimen of right S4 shows alveolitis (C Hematoxylin and Eosin) and intraluminal OP (arrow) (D Elastica van Gieson). (Case No.1)