Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unremarkable . The heart size is normal . The pulmonary vascularity is normal and the lungs are clear . No pleural effusion or pneumothorax is present . Cervical spinal fusion hardware is partially imaged .
    OUTPUT:
    
No acute cardiopulmonary process .