Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings bilaterally suggest mild to moderate interstitial edema . No definite focal consolidation seen to suggest pneumonia . Possible basilar atelectasis . No pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Interstitial edema without definite focal consolidation .