Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , the left pleural effusion has significantly increased , now large , with adjacent atelectasis . Underlying infection can not be excluded . A small right pleural effusion is smaller . The remainder of the right lung is clear . There is no pneumothorax . Cardiac silhouette after CABG is stable . Hilar contours are normal . No pulmonary edema or vascular congestion .
    OUTPUT:
    
1 . No pulmonary edema . 2 . Increased large left pleural effusion with adjacent atelectasis . Underlying infection can not be excluded .