Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate cardiomegaly is unchanged . The aorta remains calcified , with the mediastinal and hilar contours appearing otherwise unremarkable . There is no pulmonary vascular engorgement . Lungs are clear . Hyperinflation of lungs with flattening of the diaphragms suggests COPD . No pleural effusion or pneumothorax is identified . There are mild degenerative changes in the thoracic spine . Clips are seen within the upper abdomen . Widening of the left acromioclavicular joint suggest prior trauma .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Hyperinflation of lungs suggestive of COPD .