Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperinflated , which is may be due to COPD or small airway obstruction . The lungs are otherwise clear . Mild bibasilar atelectasis is noted . The heart is mildly enlarged . No pneumothorax , pulmonary edema , or pneumonia .
    OUTPUT:
    
No acute cardiopulmonary process . Mild hyperinflation of the lungs .