Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Cardiac , mediastinal and hilar contours are unchanged and within normal limits . Calcified bilateral pleural plaques are re- demonstrated . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is identified diffuse idiopathic skeletal hyperostosis is again noted within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Bilateral calcified pleural plaques suggestive of prior asbestos exposure .