Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . Elevation of the right hemidiaphragm is unchanged . Mild degenerative changes are noted involving the thoracic spine . Multiple chronic left - sided rib fractures are again demonstrated with fixation hardware seen involving the left fifth through eighth ribs . Comminuted fracture of the left midclavicle is chronic .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . Multiple chronic left - sided rib fractures and comminuted left midclavicular fracture .