Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with flattening of the diaphragms . In comparison to prior studies , there is an increase in the already prominent interstitial markings , most predominantly affecting the lung bases . Upper lungs remain more lucent , compatible with emphysema . No pneumothorax . Heart is mildly enlarged and increased from ___ . Mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Mild pulmonary edema superimposed on chronic lung disease and emphysema .