Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lower low volumes results in crowding of the bronchovascular structures . Bibasilar airspace opacities , worse on the right , are suspicious for pneumonia . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Bilateral lower lobe opacities , concerning for pneumonia .