Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . Lungs are clear . No pneumothorax or pleural effusion is present . No acute osseous abnormality is identified . There are multilevel degenerative changes in the thoracic spine with mild loss of height of several mid thoracic vertebral bodies . Cervical spinal fusion hardware is partially imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .