Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is mildly tortuous . The pulmonary vasculature is normal . The hilar contours are unremarkable . Patchy bibasilar airspace opacities may reflect atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . No displaced fractures are identified .
    OUTPUT:
    
Mild bibasilar atelectasis . No displaced fractures are identified . If there is continued concern for rib fracture , then a dedicated rib series is recommended .