Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are slightly low but clear . There is no pulmonary edema . The heart is top normal similar to the prior study . The mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . There is DISH of the thoracic spine .
    OUTPUT:
    
Low lung volumes and heart top normal , but no acute cardiopulmonary abnormality .