Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is mildly enlarged . Mediastinal silhouette and hilar contours are normal . Persistent left lower lobe collapse , small left pleural effusion and mild interstitial edema are unchanged from the exam from 2 hours prior . There is no pneumothorax . An NG tube is in place and runs through the gastric body but the tip is not imaged .
    OUTPUT:
    
Persistent left lower lobe collapse , left effusion and mild interstitial edema .