Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are again noted . There are however persistently increased interstitial markings which appear slightly progressed compared to prior . There is no pleural effusion . The cardiac silhouette is enlarged , as on prior . Left subclavian stent is again seen .
    OUTPUT:
    
Pulmonary edema is slightly worse than on recent exam .