Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pericardial drain and left chest wall dual - lead AICD / pacer are unchanged . Cardiac silhouette is stable . There is no pulmonary vascular congestion or edema . Trace right pleural fluid is again noted . Retrocardiac opacity likely reflects volume loss and possible effusion , unchanged . Left costophrenic sulcus is obscured by the pacer generator . No pneumothorax .
    OUTPUT:
    
No interval change from ___ . No pulmonary edema or vascular congestion .