Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is within normal limits . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Minimal streaky opacities are noted in both lung bases , likely areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . No subdiaphragmatic free air is noted . Loss of height of a vertebral body at the thoracolumbar junction is unchanged .
    OUTPUT:
    
Streaky bibasilar atelectasis . No subdiaphragmatic free air .