Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . A left - sided pacemaker device is noted with single lead terminating in the right ventricle . The heart size is mildly enlarged . Mediastinal and hilar contours are unchanged , with enlargement of the pulmonary arteries re - demonstrated , compatible with pulmonary arterial hypertension . There is no pulmonary vascular engorgement . No new focal consolidation , pleural effusion or pneumothorax is seen . Multiple left - sided rib deformities are re - demonstrated with minimal adjacent scarring . Remote right mid clavicular fracture is also noted . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .