Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are within normal limits . The pulmonary vasculature is normal . Streaky opacities in the lung bases likely reflect atelectasis , and no focal consolidation is demonstrated . There is no pleural effusion or pneumothorax . There is evidence of prior vertebroplasty within a total body at the thoracolumbar junction .
    OUTPUT:
    
Streaky bibasilar opacities most likely reflective of atelectasis .