Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided pacemaker projects leads to the right atrium and ventricle . The heart size is top normal . The hilar and mediastinal contours are unchanged since the ___ examination . There is no new consolidation , pneumothorax , or pleural effusion . Again seen are coarse interstitial markings .
    OUTPUT:
    
1 . No new consolidation or pulmonary edema . 2 . Underlying chronic interstitial disease .