Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is a mild interstital abnormality likely related to mild pulmonary edema . There is no evidence of pneumonia . The cardiomediastinal silhouette and hilar contours are normal . The pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumonia or effusion . 2 . Mild interstitial abnormality likely mild pulmonary edema .