Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Known lesion posterior to the superior aspect of the descending thoracic aorta is better assessed on the prior PET - CT . Lungs are hyperinflated but clear . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .