Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Again , there is vascular engorgement , interstitial thickening and hazy perihilar opacities consistent with mild pulmonary edema . This is not significantly changed from the prior exam . There is no focal consolidation . There is no pleural effusion or pneumothorax . The mediastinal contours are normal . The heart size is moderately enlarged , and stable from prior exam .
    OUTPUT:
    
Unchanged mild pulmonary edema and moderate cardiomegaly .