Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Stable as compared to the prior study , there are diffuse increased interstitial markings which may relate to patient 's underlying COPD / chronic lung disease . The lungs are hyperinflated with flattening of the hemidiaphragms . The previously noted left upper lobe nodular opacity / scarring is not as well appreciated on the current study as on CT . Slight prominence of the right hilum is stable since the prior study . No pleural effusion or pneumothorax . The aorta remains calcified .
    OUTPUT:
    
No significant interval change .