Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperinflated . The heart is not enlarged . There is possible mild prominence of the hila , but with a tapered appearance . No chf , focal infiltrate , or effusion identified . No pneumothorax is present .
    OUTPUT:
    
Possible mild hyperinflation . No acute pulmonary process .