Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes . Mild pulmonary vascular congestion is seen . There is no focal consolidation . No large pleural effusion or pneumothorax is seen . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
Mild pulmonary vascular congestion .