Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear without focal consolidation , pleural effusion or pneumothorax . Minimal degenerative spurring is seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .