Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Aorta is unfolded . Mediastinum and hilar contours are otherwise normal . The lungs are hyperinflated with flattening of the diaphragms , suggestive of underlying COPD . The pulmonary vascularity is normal . Previously noted lingular abnormality has nearly completely resolved . A small right pleural effusion is likely present . No new areas of focal consolidation is present . There is no pneumothorax . No acute osseous abnormality is seen .
    OUTPUT:
    
Previously noted lingular opacity has nearly completely resolved . Small right pleural effusion . Hyperinflation of lungs suggestive of underlying COPD .