Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . There are low lung volumes limiting evaluation . Mild interstitial edema is present without pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . No focal opacity concerning for pneumonia . Bony structures appear intact .
    OUTPUT:
    
Mild interstitial edema .