Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low bilateral lung volumes . Bibasilar opacities likely reflect atelectasis . A small left pleural effusion is suspected . No pneumothorax identified . The gastric tube extends into the stomach . The size of the cardiomediastinal silhouette is within normal limits
    OUTPUT:
    
Bibasilar atelectasis and a suspected small left pleural effusion .