Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal , and hilar contours are unremarkable . The aortic arch is tortuous and calcified . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . A VPS shunt courses below the hemidiaphragm and out of view .
    OUTPUT:
    
No acute cardiopulmonary process .