Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated again demonstrate increased interstitial markings throughout . More dense left basilar opacity silhouettes the hemidiaphragm . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
New left basilar opacity which could be due to a combination of atelectasis , effusion or infection / aspiration .