Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral interstitial lung disease with honeycombing likely represents progression of underlying disease . No evidence of superimposed pneumonia . Given preservation of lung volumes and that the progression of interstitial fibrosis is mild on chest radiographs , this is compatible with a fibrotic form of NSIP rather than UIP . The heart size is normal . No pneumothorax , pleural effusion , or pulmonary edema .
    OUTPUT:
    
1 . Mild progression of interstitial fibrotic disease with honeycombing . No evidence of superimposed pneumonia . Given preservation of lung volumes and that the progression of interstitial fibrosis is mild on chest radiographs , this is compatible with a fibrotic form of NSIP rather than UIP .