Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is moderately enlarged but unchanged . Mediastinal contours are unremarkable . There is mild pulmonary vascular engorgement . No focal consolidation , pleural effusion or pneumothorax is seen . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular engorgement .