Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior , small bilateral pleural effusion is likely . However , there is no evidence for pulmonary edema or pneumonia . Severe enlargement of cardiomediastinal silhouette is unchanged . Left - sided dual - chamber pacemaker appear unchanged . Sternotomy wires are aligned and intact .
    OUTPUT:
    
Small bilateral pleural effusion . No pulmonary edema or pneumonia .