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Thoracic computed tomography (CT) scans showing multifocal pneumonia. (Left) Baseline imaging demonstrates acute lung disease with alveolar consolidations in the left upper and right lower lobes and atelectasis of the left lower lobe. (Right) Thoracic CT scan 3 days later reveals disease progression with atelectasis in the left upper lobe and right lower lobe and new ground-glass opacities with alveolar consolidations in the middle lobe.
