PMC6378019_01
Portable chest radiography. (a) Defibrillator pad over the right chest wall. The lung is clear with sharp costophrenic angles bilaterally. Mild subsegmental atelectasis at the lung bases is seen. There are no airspace infiltrates, focal consolidation, pleural effusion, or pneumothorax. (b) Enlarged cardiomediastinal silhouette. Interval development of small bilateral pleural effusions and pulmonary congestion occurs.
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Chest radiography (CXR) and contrast-enhanced chest computed tomography (CT) showed no active disease (Figures 1(a) and 2(a)). Repeat imaging (CXR and chest CT) revealed extensive bilateral basilar airspace opacities with large evolving bilateral pleural effusions (Figures 1(b) and 2(b)), and arterial blood gas showed hypoxemia with arterial oxygen partial pressure to fractional inspired oxygen ratio (PaO2 to FIO2) of 88 mmHg.