Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mildly enlarged , accentuated by the presence of low lung volumes . Mediastinal and hilar contours are within normal limits . Crowding of bronchovascular structures is present without overt pulmonary edema . No focal consolidation , pleural effusion or pneumothorax is present . Minimal patchy bibasilar opacities likely reflect atelectasis . No acute osseous abnormality is visualized . Wedge compression deformity of the T12 vertebral body is unchanged .
    OUTPUT:
    
Low lung volumes with probable bibasilar atelectasis .