Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The patient has had prior cervical spine fusion . An endotracheal tube ends at the level of the clavicles . A nasogastric tube coils in the stomach . The left costophrenic angle has been excluded from the field of view . There is no pneumothorax . Aside from minimal bibasilar atelectasis , the visualized lungs are clear .
    OUTPUT:
    
Minimal bibasilar subsegmental atelectasis with otherwise clear visualized lungs . Lines and tubes in satisfactory position as described above .