Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is now minimal interstitial edema . Left lower lobe ground - glass opacities seen on subsequent CT are better appreciated on that study . No pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable and unremarkable . Surgical hardware is partially seen in the cervical spine .
    OUTPUT:
    
Mild interstitial edema . Left lower lobe ground - glass opacities better appreciated / evaluated on subsequent CT .