Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal portable views of the chest . The patient is status post coronary artery bypass grafting . Sternotomy wires are intact . A fiducial marker is present within a band - like area of scarring in the left upper lung that extends to the pleural surface . No new focal consolidation , pleural effusion , or pneumothorax . The heart size and cardiomediastinal contours are stable .
    OUTPUT:
    
1 . No radiographic evidence of acute cardiopulmonary process . 2 . Left upper lung band - like scarring containing a fiducial marker , consistent with the site of previously treated non-small cell lung cancer .