Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with chest radiograph from ___ , there is no significant change . Lungs are hyperinflated . There is no focal consolidation , effusion , or pneumothorax . Mediastinal and hilar contours are normal . Heart size is normal .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Stable hyperinflated lungs .