Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . Lungs are grossly clear . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities are seen . There are no radiopaque foreign bodies .
    OUTPUT:
    
No acute cardiopulmonary process .