Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low bilateral lung volumes with increasing bibasilar opacities which may reflect atelectasis and / or consolidation . There is unchanged mild pulmonary edema . No pleural effusion or pneumothorax identified . The size the cardiac silhouette is enlarged but unchanged .
    OUTPUT:
    
Increasing bibasilar opacities which may reflect atelectasis or pneumonia in the proper clinical context . Unchanged mild pulmonary edema .