Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . There is minimal linear atelectasis or scarring in the lingula . Lungs are otherwise clear . No focal consolidation , pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities . Mild degenerative changes are seen in the imaged thoracic spine
    OUTPUT:
    
No acute cardiopulmonary abnormality .