Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate hyperinflated lungs which appear clear and there is no sign of pneumonia , effusion or pneumothorax . Cardiomediastinal silhouette normal . Bony structures intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .