Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the exam performed 10 hours prior , there is no significant change . There is likely increase in moderate left pleural effusion . Persistent left lower lobe collapse is seen . Right lower lobe atelectasis is also likely . Enlarged cardiomediastinal and hilar contours are unchanged from prior . There is no evidence for pneumothorax . Again seen are pericardial drainage catheter , 2 orphaned pacer leads , both unchanged in position .
    OUTPUT:
    
Moderate left pleural effusion increased slightly over 10 hr . Stable large cardiac silhouette , improved since ___ . Persistent severe left lower lobe atelectasis . No pneumothorax .