Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . The lung volumes are low . There is no pleural effusion or pneumothorax . The pulmonary interstitium shows new mild prominence suggesting vascular congestion but there is no focal opacification .
    OUTPUT:
    
Findings suggesting mild vascular congestion .