PMC5121158_01
a) Chest X-ray showed bilateral infiltration without pleural effusion and cardiomegaly. b) Chest computed tomography indicated non-segmental patchy shadow and consolidation with air bronchogram.
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Chest X-ray showed infiltration of the both lung fields (Fig. 1a). Chest computed tomography revealed the non-segmental patchy shadow and consolidation on both sides (Fig. 1b).
a) Bronchoscopic finding showed that white and soft tissue were presented on the trachea discontinuity. b) Transbronchial biopsy revealed necrotic tissue with squamous metaplasia and inflammatory cells (Hematoxylin and Eosin staining x40).
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Bronchoscopy, performed for more thorough examination, revealed white and soft tissues scattered in the trachea that could not be removed by suction or forceps (Fig. 2a). Specimens of tracheal mucosa revealed findings consistent with NTB indicated by necrotic tissue with squamous metaplasia and inflammatory cells of tracheal tissue (Fig. 2b).
a) Trachea, after steroid pulse therapy indicated vanishing of the lesions. b) Bilateral consolidation had been improved significantly, and it changed to lung cysts.
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Subsequent, chest radiography indicated improvement (Fig. 3a and b).