Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A stimulator device has been placed and projects over the left mid chest . The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . The lungs appear clear . Severe mid - to - lower thoracic compression fracture appears unchanged .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .