Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Minimal subsegmental atelectasis is noted in the region of the lingula . Lungs are otherwise clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute fractures are seen . Mild to moderate multilevel degenerative changes are present within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .