Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal and the lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormality is identified . Mild degenerative changes are again noted within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .