Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pulmonary vascular congestion with slightly more prominent interstitial markings may reflect pulmonary interstitial edema . No pleural effusion or pneumothorax . The size of the cardiac silhouette is enlarged but unchanged . Degenerative changes of both shoulders .
    OUTPUT:
    
Mild pulmonary interstitial edema .