Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are obtained . Dual - lead pacer is unchanged with pacer leads extending into the expected location of the right atrium and right ventricle . Bilateral calcified breast implants project over the lower lungs . There is mild bibasilar atelectasis . Aside from this , the lungs are clear . No large effusion or pneumothorax is seen . Mediastinal contour is unremarkable . Heart size is normal . Bony structures are intact .
    OUTPUT:
    
Mild bibasilar atelectasis . Otherwise , unremarkable .