Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . The lungs are clear . Scarring within the lung apices is is re - demonstrated . No pleural effusion , focal consolidation or pneumothorax is visualized . There are mild degenerative changes noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .