Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are noted to be mildly low . No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . Mild bibasilar atelectasis is noted . The heart size is normal . Mediastinal contours are normal . Redemonstrated are multiple right - sided healed rib fractures . Surgical clips are noted within the left upper quadrant .
    OUTPUT:
    
Low lung volumes and mild bibasilar atelectasis . No acute cardiopulmonary process .