Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged . The aorta is mildly tortuous and diffusely calcified . Mediastinal and hilar contours are unchanged . There is mild pulmonary vascular congestion . No focal consolidation , pleural effusion or pneumothorax is identified . Mild multilevel degenerative changes are visualized in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion .