Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . Two leads from a pacemaker generator in the left chest project over the expected positions of the right atrium and right ventricle . No pneumothorax is present . Bilateral pleural effusions are small . Additional interstitial opacities present at both lung bases are also mild . Mild cardiomegally and aortic arch calcifications are present .
    OUTPUT:
    
Pacemaker leads in expected positions . No pneumothorax . Small bibasilar pleural effusions and bibasilar interstitial opacities .