Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is mildly enlarged with a left ventricular predominance , unchanged . The aortic knob is calcified . Mediastinal and hilar contours are unchanged . Streaky opacities in the lung bases likely reflect atelectasis . Small bilateral pleural effusions are likely present . No pulmonary edema or pneumothorax is present . Compression deformity at the thoracolumbar junction is re - demonstrated .
    OUTPUT:
    
Low lung volumes with probable bibasilar atelectasis and trace bilateral pleural effusions .