Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy opacities in bilateral lung bases are similar compared to 1 day prior and may represent aspirated blood . Left lung base atelectasis is increased . There is no new consolidation . No pneumothorax or large pleural effusion is identified . Bibasilar bronchiectasis is again noted . Cardiomediastinal silhouette is normal size .
    OUTPUT:
    
Persistent bibasilar opacities , which may represent aspirated blood , and right lower lobe pneumonia . Minimally increased left lower lobe atelectasis .