Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top normal in size . The hilar and mediastinal contours are unchanged since ___ . The aorta is moderately calcified and tortuous . Coarse interstitial markings are seen bilaterally , reflecting chronic underlying disease . The central pulmonary vessels are congested and there is suggestion of mild superimposed edema or fluid overload . There is no pneumothorax , large pleural effusion , or definite focal consolidation .
    OUTPUT:
    
Chronic interstitial lung disease , as seen on the prior chest radiograph from ___ , with mild superimposed opacification suggesting pulmonary vascular congestion .