Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe hyperexpansion of the lungs with coarsening of the interstitial markings , related to COPD . The right hilar mass is again demonstrated . No acute focal consolidation . A right - sided small effusion has developed with associated atelectasis . No pneumothorax .
    OUTPUT:
    
Severe hyperinflation and COPD . Trace right - sided effusion is seen .