Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest x-rays were obtained . Our records do not include a previous exam for comparison . Note is made of sternotomy wires and surgical ___ related to prior CABG . The heart size is mildly enlarged , and there is moderate widening of the thoracic aorta . There is prominent pleural scarring on the right side and blunting of the right costophrenic sulcus presumably related to prior empyema ; however , there is no evidence of free fluid . The lungs are otherwise clear . There is no pneumothorax .
    OUTPUT:
    
Right - sided pleural scarring and blunting of right costophrenic sulcus , but no pleural effusion .