Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Moderate pulmonary edema is increased from the prior examination on ___ . There may be small bilateral pleural effusions . No pneumothorax . A left pectoral pacemaker is unchanged . No pneumothorax .
    OUTPUT:
    
Moderate pulmonary edema is increased from the prior examination . No pneumothorax .