Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated . Increased interstitial markings are seen in the lungs , particularly with an upper lobe distribution . There is retrocardiac opacity and silhouetting of the left hemidiaphragm . Some of this may be due to atelectasis given volume loss and leftward shift of the mediastinum . Superimposed consolidation is possible . Cardiac silhouette is grossly unchanged in size . No acute osseous abnormalities . Might no height loss of mid thoracic vertebral bodies are unchanged .
    OUTPUT:
    
Left basilar opacity could be due to atelectasis given left - sided volume loss although infection is possible . Elsewhere , increased interstitial markings are seen in the lungs likely due to chronic underlying interstitial process or emphysema although superimposed interstitial edema or atypical infection are possible .