Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lateral view is limited , secondary to respiratory motion artifact . The patient is then slightly towards the left . Lung volumes are slightly low , but similar to the prior exam . Right infrahilar opacity most likely reflects atelectasis and bronchovascular crowding , not definitely appreciated on the lateral view . In the appropriate clinical situation , an early bronchovascular pneumonia is possible . Retrocardiac streak like opacities are similar the prior exam and are also consistent with atelectasis . No edema , effusion , or pneumothorax . The left dual lead pacemaker device appears grossly intact and unchanged in position . Extensive aortic knob calcifications are unchanged . Diffuse calcification of the trachea is within normal limits for the patient 's age and unchanged . No acute osseous abnormality .
    OUTPUT:
    
Low lung volumes with bronchovascular crowding and atelectasis .