Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse bilateral moderate peribronchial opacities are persistent , but mildly improved . Layering bilateral pleural effusions are small . The cardiomediastinal silhouette is unchanged . Right subclavian catheter terminates at the cavoatrial junction . The tracheal stent is unchanged in positioning . The aortic knob calcification is also unchanged . No pneumothorax .
    OUTPUT:
    
Improved moderate pulmonary edema .