A) CT scan of chest with intravenous contrast 10 days before admission. The
representative slice shows areas of patchy consolidation in the posterior
portions of the lower lobes bilaterally. B) CT scan without intravenous
contrast, taken on the day of admission, showing significant consolidation in
the posterior aspects of the bilateral lower lobes, surrounded by patchy
ground-glass infiltrates. C) Fingers of Case 1 showing dry, crackling skin at
the fingertips, typical of mechanic’s hands. D) Hematoxylin and eosin
stain of the left lingula showing areas of extensive interstitial fibroplasia
and marked pneumocyte atypia and interstitial inflammation consistent with
organizing diffuse alveolar damage with associated bronchopneumonia.