Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of the cardiac silhouette is unchanged . Port - A - Cath terminates at the cavoatrial junction , as before . There is mild pulmonary interstitial edema but no focal consolidation . No pleural effusion . No pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly and mild pulmonary interstitial edema are overall similar compared to the most recent prior study .