Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is unremarkable . Again noted are diffusely increased interstitial markings and bibasilar reticular opacities , corresponding to patient 's known chronic interstitial lung disease and pulmonary fibrosis , seen on prior examinations . There is stable elevation of the right hemidiaphragm . No definite consolidation , pleural effusion , or pneumothorax is identified .
    OUTPUT:
    
Findings consistent with patient 's known chronic pulmonary fibrosis .