Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are similar when compared to the prior study . The cardiomediastinal contour is within normal limits allowing for the projection . The heart is not enlarged . Mild prominence of the pulmonary interstitial markings may reflect a mild degree of pulmonary edema . No consolidation , pneumothorax or pleural effusion seen .
    OUTPUT:
    
Mild prominence of the interstitial markings may reflect mild pulmonary vascular congestion .