Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aortic knob is mildly calcified . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal and the lungs are clear . No pleural effusion , focal consolidation or pneumothorax is seen . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .