Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Blunting of the left lateral costophrenic angle may be due to a combination of atelectasis and small effusion . Low lung volumes seen on the lateral view . The lungs elsewhere are grossly clear . Chronic changes seen in the glenohumeral joints bilaterally and posterior spinal fixation hardware in the thoracolumbar region .
    OUTPUT:
    
Blunting of the left costophrenic angle may be due to a combination of atelectasis and effusion . No focal consolidation worrisome for infection .