Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . A vague opacity projects over the right mid - to - upper lung on the frontal view only and is more conspicuous compared with the prior exam , differential considerations include pneumonia versus overlying artifact . Otherwise , no definite consolidation , effusion , pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact . Interposition of bowel accounts for the lucency below the right hemidiaphragm .
    OUTPUT:
    
Vague opacity in the right mid - to - upper lung , question early pneumonia . Recommend followup to resolution .