Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Inspiratory volumes are slightly low . The cardiomediastinal silhouette is not significantly changed , allowing for differences in technique . Right paratracheal soft tissues are again noted to be prominent . There is minimal atelectasis at both bases . No CHF , focal consolidation , or effusion is identified . Probable background hyperinflation / COPD .
    OUTPUT:
    
Minimal bibasilar atelectasis . No definite infectious infiltrate .