Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Heart size is top normal . The aorta is mildly tortuous . There is no pulmonary vascular congestion , but the presence of low lung volumes causes crowding of the bronchovascular structures . No focal consolidation , pleural effusion or pneumothorax is seen . Minimal streaky bibasilar airspace opacities likely reflect atelectasis . Several clips are demonstrated in the right upper quadrant of the abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .