PMC5247287_01
Chest CT at presentation showing a large right upper lobe alveolar infiltrate with air bronchogram.
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Chest CT revealed a new large consolidation in the right upper lobe, with air-bronchogram (Fig. 1).
A, B, C: Lung parenchyma with thickened alveolar septa and mild chronic inflammation, consistent with organizing pneumonia. Hematoxylin and eosin stain; magnification x100, x200 and x400 respectively.
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Trans-bronchial biopsies demonstrated organizing pneumonia (Fig. 2).
Chest CT following three months of steroid treatment showing resolution of the RUL infiltrate.
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Repeat chest CT was done 12 weeks after his admission showing marked improvement of his lung infiltrates (Fig. 3).