Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged but unchanged . The mediastinal and hilar contours are similar with tortuosity of the thoracic aorta again noted . Mild pulmonary vascular congestion appears slightly worse in the interval . No focal consolidation , pleural effusion or pneumothorax is only demonstrated . Eventration of the left hemidiaphragm posteriorly is re - demonstrated . S - shaped scoliosis of the thoracic spine with multilevel moderate degenerative changes is again noted .
    OUTPUT:
    
Mild pulmonary vascular congestion .