Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minimal bibasilar subsegmental atelectasis / scarring is unchanged from multiple prior exams . There is no new consolidation , pleural effusion , pulmonary edema or pneumothorax identified . The lungs are hyperinflated , but unchanged in appearance . The cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process . There is Minimal subsegmental atelectasis / scarring in the bases .