Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are diminished . Pulmonary vascular congestion is mildly increased suggestive of mild interstitial edema . Possible small bilateral pleural effusions , left greater than right . Moderate cardiomegaly is stable . The mediastinal and hilar contours are stable . The NG tube tip is located in the upper stomach .
    OUTPUT:
    
NGT tip is in the upper stomach . Mild interstitial edema .