Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Bibasilar linear opacities have the typical appearance of atelectasis , though aspiration can not be completely excluded . There may be a tiny left pleural effusion . There is no right pleural effusion or pneumothorax . The cardiomediastinal silhouette normal . The bowel gas pattern in the upper abdomen is normal .
    OUTPUT:
    
Possible tiny left pleural effusion . Bibasilar opacities are likely atelectasis . Aspiration can not be completely excluded .