Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is top - normal . Mediastinal contours are unremarkable . No large pleural effusion is seen . There is no pneumothorax . Peripheral reticular opacities bilaterally and at the lung bases bilaterally suggest chronic lung disease . No priors available for comparison , but no definite consolidation aside from what is felt to be chronic , to suggest acute pneumonia .
    OUTPUT:
    
Likely chronic lung disease , given lack of priors for comparison .