Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . There is mild upper zone vascular redistribution , as seen on the prior study . No focal consolidation , pleural effusion or pneumothorax is present . Moderate multilevel degenerative changes are noted in the thoracic spine . Clips are seen in the right upper quadrant compatible with prior cholecystectomy .
    OUTPUT:
    
Mild pulmonary vascular congestion , unchanged . No acute cardiopulmonary abnormality otherwise identified .