Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffusely increased interstitial markings are slightly decreased in conspicuity compared with the prior study . There is mild cardiomegaly . There is no pleural effusion , focal consolidation , or pneumothorax . There is no displaced rib fracture .
    OUTPUT:
    
1 . Slightly decreased conspicuity of the diffusely increased interstitial markings , potentially attributable to interval resolution of mild pulmonary edema superimposed on the unchanged chronic interstitial lung disease . 2 . No displaced rib fracture .