Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Linear platelike atelectasis in the left mid and lower lung noted . Otherwise the lungs are clear though lungs appear hyperinflated and lucent suggesting underlying COPD . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
As above . No signs of pneumonia .