Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a left pectoral pacemaker with 3 leads , unchanged in position . A moderate right pleural effusion has reaccumulated since the most recent prior study , which is similar in appearance to ___ . There is mild pulmonary vascular congestion / interstitial edema . No left pleural effusion or pneumothorax is seen . The cardiac silhouette remains enlarged . There is mild calcification of the aortic knob .
    OUTPUT:
    
1 . Moderate left pleural effusion , which is re-accumulated since ___ but appears similar to ___ . 2 . Mild pulmonary vascular congestion / interstitial edema .