Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is top normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Minimal atelectasis is seen in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . There is mild loss of height anteriorly of a vertebral body at the thoracolumbar junction , likely chronic , with associated degenerative changes .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .