Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable , with mild unfolding of the descending aorta . There is no pneumothorax or large pleural effusion . Lungs are well expanded with redemonstration of chronic interstitial abnormality . The previously noted right upper lobe opacity is no longer visualized , and there are no new opacities .
    OUTPUT:
    
No acute cardiopulmonary process . Chronic interstitial abnormality redemonstrated .