Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse increase in interstitial markings bilaterally is worrisome for mild to moderate interstitial edema . Linear right middle lobe atelectasis / scarring is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are grossly stable .
    OUTPUT:
    
Mild to moderate interstitial edema .