Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large - bore dual - lumen catheter from an inferior approach is in unchanged position terminating near the inferior cavoatrial junction . There are bibasilar opacities and blunting of the bilateral costophrenic angles suggestive of small effusions and atelectasis . Upper lungs are clear . There is no pneumothorax . No pulmonary edema is identified . Mediastinal and hilar contours are within normal limits . Mild cardiomegaly is unchanged . The patient 's AV graft projects over her right upper arm .
    OUTPUT:
    
Probable bibasilar atelectasis and small effusions