Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs appear hyperinflated and hyperlucent consistent with chronic obstructive pulmonary disease with severe biapical emphysema . Previously noted bibasilar opacities appear improved and likely represent an improving infectious process . No new opacities are identified . Left apical pleural thickening is again noted . Pulmonary arteries appear enlarged consistent with pulmonary arterial hypertension . Cardiac contour appears within normal limits . There is no pleural effusion or pneumothorax . There is no acute fracture or dislocation .
    OUTPUT:
    
Findings consistent with severe COPD , pulmonary arterial hypertension , and improving bibasilar interstitial process .