Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart size is top normal . The mediastinal and hilar contours are unremarkable . Bilateral calcified pleural plaques are seen diffusely which limits assessment of the underlying pulmonary parenchyma . No focal consolidation , pleural effusion or pneumothorax is clearly demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
Bilateral calcified pleural plaques indicative of prior asbestos exposure . No definite acute cardiopulmonary abnormality otherwise noted .