Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC is again seen terminating in the low SVC . Since the prior study , there has been increase in interstitial and airspace opacities bilaterally suggesting moderate pulmonary edema , possibly of a background of chronic lung disease . Lateral left lung scarring is again seen . Small pleural effusions may be present . No pneumothorax is seen . Cardiac and mediastinal silhouettes are stable . .
    OUTPUT:
    
Moderate pulmonary edema . Small pleural effusions not excluded .