Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bibasilar hazy opacities are most consistent with atelectasis , although in the appropriate clinical setting , pneumonia can not be fully excluded . There is no evidence of edema , pleural effusion , or pneumothorax . A dual - lead chamber pacemaker is present with the leads in proper position . The cardiomediastinal silhouette is normal . There are atherosclerotic calcifications in the aorta .
    OUTPUT:
    
Bibasilar hazy opacities are likely atelectasis , although in the appropriate clinical setting , pneumonia can not be fully excluded .