Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . In the setting of low lung volumes , there is no overt evidence for pneumonia edema , effusion or pneumothorax . Cardiomediastinal silhouette appears prominent though this is likely due to technique . Bony structures are intact .
    OUTPUT:
    
Limited , negative .