Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear bibasilar atelectasis is seen without evidence of focal consolidation . There is no pleural effusion or pneumothorax . The heart is mildly enlarged with normal mediastinal contours .
    OUTPUT:
    
Bibasilar atelectasis without evidence of pneumonia . Enlarged cardiac silhouette , appears increased in size since the prior study .