Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate mild hyperinflation , consistent with known emphysema . Additionally , interstitial edema , small right pleural effusion , and mild cardiomegaly are new when compared to ___ . Left basilar scarring and pleural thickening are chronic . Median sternotomy wires and aortic prosthesis are unchanged . There is no focal consolidation or pneumothorax .
    OUTPUT:
    
CHF with interstitial edema superimposed upon baseline emphysema .