Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , the previously noted moderate pulmonary edema is vastly improved , the right partially loculated pleural effusion is slightly decreased in size , and the left moderate pleural effusion is unchanged . Moderate cardiomegaly is not well assessed on today 's exam but appears unchanged . Lung volumes are low . No pneumothorax .
    OUTPUT:
    
Previously noted moderate pulmonary edema is vastly improved , right moderate partially loculated pleural effusion is decreased , and the left moderate pleural effusion is unchanged since ___ .