Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study , no significant changes . Substantial bilateral pleural effusions with fissural components , right greater the left , are persistent . Heart size is normal without pneumothorax . Mild interstitial edema is unchanged . No focal consolidation concerning for pneumonia .
    OUTPUT:
    
1 . Unchanged substantial bilateral pleural effusions , right greater than left . 2 . No focal consolidation concerning for pneumonia .