Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bibasilar atelectasis . Otherwise , the lungs are without focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . No acute fractures .
    OUTPUT:
    
Bibasilar atelectasis . However , these findings may be due to aspiration , and pneumonia must be excluded in the proper clinical setting .