Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is somewhat limited due to patient rotation . Right - sided pacemaker device with leads terminating in the right atrium and right ventricle is again noted . The patient is status post median sternotomy and CABG . Cardiac silhouette size is normal , with a left ventricular predominance . The aorta remains tortuous and diffusely calcified . There is no pulmonary vascular congestion . Streaky left basilar opacity could reflect atelectasis or infection . No pleural effusion or pneumothorax is definitively seen . There is diffuse demineralization of the osseous structures with evidence of prior kyphoplasty of T12 with adjacent clips .
    OUTPUT:
    
Streaky left basilar opacity could reflect atelectasis but infection is not excluded .