Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is mildly enlarged . There is pulmonary vascular redistribution . There is volume loss in the right lower lung . There is hazy alveolar infiltrate bilaterally . It is difficult to assess for pleural effusions given the overlying amount of soft tissue
    OUTPUT:
    
Pulmonary edema . An underlying infectious infiltrate ca n't be excluded