Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Lung volumes are low . No definite sign of pneumonia or CHF . No pleural effusion or new pneumothorax . No free air below the right hemidiaphragm . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
Limited , negative . No free air .