Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . The lungs are clear . Elevation of the right hemidiaphragm and linear scarring in the right mid hemi thorax are unchanged . There are no new lung abnormalities . There is no pneumothorax or pleural effusion . There are mild degenerative changes in the thoracic spine
    OUTPUT:
    
No acute cardiopulmonary abnormalities