Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Underpenetrated technique limits evaluation . Allowing for this , there is no convincing evidence for pneumonia or CHF . No large effusions or pneumothorax . The cardiomediastinal silhouette is top normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Limited , negative .