Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval increase in retrocardiac opacity and left lower lobe atelectasis . Stable small bilateral pleural effusions and left hilar mass . No pneumothorax and right lung is clear . Heart size and mediastinal contour are normal .
    OUTPUT:
    
1 . Interval increase in left lower lobe atelectasis and retrocardiac opacity which in the appropriate clinical setting may represent pneumonia . 2 . Stable bilateral small pleural effusions . Results were conveyed to primary team by Dr . ___ on ___ , within 5 minutes of results .