Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs are mildly hyperexpanded . Again seen is prominence of interstitial markings , especially in the right mid-lower lung and left upper lung . This finding is largely unchanged since at least ___ . Otherwise , no alveolar opacities to suggest pneumonia . Heart size is normal . There is no pleural effusion .
    OUTPUT:
    
1 . Chronic pulmonary changes , predominately in the left upper lung . 2 . No acute pneumonia .