Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . The aorta is tortuous and diffusely calcified . Mediastinal and hilar contours are unchanged . There is no pulmonary vascular congestion . Linear opacities within the right mid lung field likely reflect areas of scarring . Lungs remain hyperinflated with flattening of the diaphragms suggestive of COPD . No new focal consolidation , pleural effusion or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine . Oral contrast is seen within bowel loops in the left upper quadrant of the abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .