Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent hyperinflation of the lungs which may be due to chronic obstructive pulmonary disease . No focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Hyperinflated lungs suggesting COPD . No focal consolidation .