Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The mediastinal and hilar contours are unremarkable . There is no pneumothorax or large pleural effusion . Chronic interstitial markings likely correlates to the known NSIP and is better characterized on prior CTs . However , this finding is clearly progressed from the chest radiograph from ___ . The upper abdomen is unremarkable . No displaced rib fractures are seen .
    OUTPUT:
    
Interstitial prominence reflecting chronic changes . No acute cardiothoracic process . No displaced fractures .