Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Assessment of the apices is somewhat obscured by the patient 's chin and soft tissues of the neck projecting over and obscuring this region . The heart size appears unchanged , which is within normal limits . There does appear to be a left ventricular predominance . The mediastinal and hilar contours are unchanged . There is crowding of the bronchovascular structures as a result of low lung volumes . Streaky opacities in the lung bases likely reflect atelectasis , and appear improved compared to the previous radiograph . No pleural effusion or focal consolidation is seen . There is no pneumothorax . Numerous clips are demonstrated in the left upper quadrant of the abdomen . Diffuse demineralization of the osseous structures is redemonstrated .
    OUTPUT:
    
Low lung volumes with improving bibasilar atelectasis .