Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Since the prior exam , there is increased vascular congestion and mild pulmonary edema . There is no focal consolidation to suggest pneumonia . There is no pleural effusion or pneumothorax . The hilar contours are enlarged . This is unchanged from ___ , and likely due to pulmonary hypertension . The mediastinal contours are normal . The heart size is at the upper limits of normal . A left - sided pacemaker is unchanged , and in satisfactory position .
    OUTPUT:
    
Mild pulmonary edema .