Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . There is bilateral diffuse increase in the interstitial thickening , with upper vascular redistribution , ___ B lines , and bilateral hilar prominence suggesting pulmonary edema . The heart is moderately enlarged but not significantly changed compared with prior study . There is a tiny left - sided pleural effusion , but no pleural effusion in the right . There is no pneumothorax .
    OUTPUT:
    
Mild pulmonary edema .