PMC4681965_01
Chest radiology shows right upper lobe predominant interstitial alveolar pattern.
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Chest radiography showed diffuse interstitial and alveolar infiltrate involving the entire right lung with right upper lobe predominance (Fig. 1).
Chest computed tomography impressive for right upper lobe ground-glass and nodular infiltrates.
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Chest computed tomography showed an extensive right upper lobe quasi-nodular ground-glass infiltrate and a similar but less severe process in the right lower lobe (Fig. 2).
A: Refractile foreign body deposition (arrow) visualized under high powered polarized microscopy, with fibrotic tissue changes. B: Prominent alveolar hemorrhage with emphysematous changes and widened interalveolar septi.
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Transbronchial biopsy demonstrated alveolar hemorrhage with refractile foreign material deposits (Fig. 3).