Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated , with flattening of the diaphragms , suggesting chronic obstructive pulmonary disease . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . Left mid lung linear scarring is seen . The cardiac and mediastinal silhouettes are stable and unremarkable with calcification at the aortic knob .
    OUTPUT:
    
No acute cardiopulmonary process .