Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . There is mild unfolding of the thoracic aorta as seen previously . The mediastinal and hilar contours appear unchanged . There is mild reticular abnormality including Kerley B lines suggesting mild interstitial edema or fluid overload . The extreme left costophrenic angle is excluded but there is no definite evidence for pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Findings suggesting mild vascular congestion .