Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is within normal limits . The mediastinal and hilar contours are normal . The lungs are clear of lobar consolidation ; in the upper mid portion of the left lung and the lateral subpleural space is a lucent lesion with a minimally dense rim , better characterized on prior chest CT . The lung volumes are low with bibasilar atelectasis . There is no large pleural effusion or pneumothorax . The previously described compression deformity of the L1 vertebral body is unchanged from prior CT . Cervical fixation harware .
    OUTPUT:
    
Low lung volumes / bibasilar atelectasis , without radiographic evidence for pneumonia .