Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are slightly hyperinflated . There are no focal opacities concerning for pneumonia . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Left - sided bicameral pacemaker is present , with leads and in an appropriate position .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .