Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . The lungs are well - expanded and clear without focal consolidation . Irregularity of the right posterior ribs ___ be reflective of prior trauma . Post CABG changes are noted with intact median sternotomy wires .
    OUTPUT:
    
No acute cardiopulmonary process .