Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . No free air seen below the right hemidiaphragm . Mild left basal atelectasis noted . No signs of pneumonia or edema . No large effusion or pneumothorax . Cardiomediastinal silhouette appears grossly within normal limits . Bony structures are intact . Bilateral AC joint arthropathy noted .
    OUTPUT:
    
As above . No free air below the right hemidiaphragm .