Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is borderline enlarged , slightly increased in size compared to the previous study . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Lungs are clear . Blunting of the costophrenic angles on the lateral view posteriorly is compatible with trace bilateral pleural effusions . No pneumothorax is a is identified . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
Small bilateral pleural effusions and interval increase in size of the heart , now borderline enlarged . No pulmonary edema .