Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged . No overt pulmonary edema is present . There is persistent small right pleural effusion with associated right basilar atelectasis . Left lung is clear . No pneumothorax is present . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Small right pleural effusion , not substantially changed in the interval , with associated right basilar atelectasis .