Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited due to low lung volumes . The heart size is at least moderately enlarged . Widening of the superior mediastinum is likely due to low lung volumes . Vascular stents are noted in the region of the right brachiocephalic vein and SVC . There is crowding of bronchovascular structures with mild pulmonary vascular engorgement . Patchy opacities in the lung bases likely reflect atelectasis . There is no large pleural effusion or pneumothorax . Rugger ___ appearance to the spine is compatible with renal osteodystrophy . Focal kyphosis at the thoracolumbar junction with severe compression deformity is present .
    OUTPUT:
    
1 . Low lung volumes . Mild pulmonary vascular congestion . 2 . Probable bibasilar atelectasis . If there is continued concern for infection , a repeat exam with improved inspiratory effort to better assess the lung bases is recommended . 3 . Renal osteodystrophy with severe compression deformity at the thoracolumbar junction with focal kyphosis .