Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unchanged and within normal limits . The pulmonary vascularity is not engorged . Minimal streaky bibasilar airspace opacities likely reflect atelectasis . There is no focal consolidation . No pleural effusion or pneumothorax is identified . Scarring within the lung apices is re - demonstrated . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Mild bibasilar atelectasis .