Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Coronary artery stent is re - demonstrated . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Mild degenerative changes are seen in the thoracic spine . Minimally displaced fracture of the right posterior seventh rib appears new .
    OUTPUT:
    
Minimally displaced fracture of the right posterior seventh rib . No acute cardiopulmonary abnormality .