Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation is seen . There is slight increased interstitial markings bilaterally suggesting mild interstitial edema . No pleural effusion or pneumothorax is seen . Cardiac silhouette is top - normal . Mediastinal contours are grossly stable given differences in technique .
    OUTPUT:
    
Mild interstitial edema .