Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated consistent with COPD but clear of any focal opacities concerning for an infectious process . Surgical clips are noted in the mediastinum at the site of the patient 's prior mediastinal mass . Hilar and paratracheal adenopathy is again present , although improved . A calcified mitral annulus is present . There is no pleural effusion and no pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Improving hilar and paratracheal adenopathy .