Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A PICC line has been removed . The cardiac , mediastinal and hilar contours appear stable . Subpleural scarring at each lung apex appears unchanged . The chest is hyperinflated . There is no pleural effusion or pneumothorax . An opacity in the right middle lobe persists and appears chronic .
    OUTPUT:
    
Unchanged chronic right middle lobe opacity with no definite superimposed acute findings .