Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and cardiac valve replacement . Cardiac and mediastinal silhouettes are stable . Mild pulmonary vascular congestion persists . No new focal consolidation or pleural effusion is seen . Surgical clips are again seen overlying the right upper hemithorax .
    OUTPUT:
    
Mild pulmonary vascular congestion .