Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph . Median sternotomy wires are intact and mediastinal clips are again noted . There is are bibasilar interstitial opacities , moreso on the right . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
Bibasilar interstitial opacities , worse on the right . The focal opacity at the right lung base is particulary concerning and may represent infection , aspiration , or asymmetric edema .