Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . There is mild bibasilar atelectasis . Lungs are otherwise clear . Pleural surfaces are clear without effusion or pneumothorax . VP shunt projects over the right chest .
    OUTPUT:
    
No acute cardiopulmonary abnormality .