Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Mild degenerative changes are seen within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .