Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperinflated . The cardiac silhouette is stable . Again noted is right hilar prominence . There are stable , diffuse , primarily reticular opacities , primarily affecting the lung bases consistent with underlying with chronic lung disease . Again seen is a large retrosternal bulla , best visualized on the lateral radiograph . No focal consolidation is seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Interstitial lung disease without definite evidence of pneumonia .