Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Relatively low inspiratory effort is seen , similar to prior exam . There is subtle increased left midlung and basilar opacity more conspicuous on today 's exam which is also identified on the lateral view . In the proper clinical setting this could represent pneumonia . Superiorly the lungs are grossly clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is identified .
    OUTPUT:
    
Subtle left mid lung and basilar opacity which could represent infection in the proper clinical setting . Recommend repeat after treatment to document resolution .