Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contour for is unchanged . Elevation of the right hemidiaphragm is also stable and a long - standing finding . The lungs are clear . There is no pneumothorax or pleural effusion . Multiple healed rib fractures are again seen .
    OUTPUT:
    
No evidence of pneumothorax . Unchanged appearance of the chest .