Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minimal atelectatic bands are seen in middle and lower left lung . The right lung is unremarkable . Prior surgery with multiple clips are seen in left upper hemithorax for an unknown etiology . The lungs are mildly hyperinflated . Mediastinal and cardiac contours are normal .
    OUTPUT:
    
There is no acute cardiopulmonary process . The lungs are mildly hyperinflated .