Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior study , there has been interval increase in interstitial markings , somewhat similar to that seen on ___ , which could represent mild interstitial edema versus atypical infection . No lobar consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
As compared to the prior study , there has been interval increase in interstitial markings , somewhat similar to that seen on ___ , which could represent mild interstitial edema versus atypical infection .