Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , resulting in bronchovascular crowding . There is a small left pleural effusion . Bibasilar heterogeneous opacities likely reflect atelectasis . No pneumothorax . Cardiac silhouette is unchanged . A cutaneous pacer pad is seen overlying the right hemithorax . There has been interval placement of a right - sided internal jugular transvenous pacer , with its tip ultimately ending in the right atrium .
    OUTPUT:
    
1 . Interval placement of a right internal jugular transvenous pacer , with the tip ultimately ending in the right atrium . 2 . Low lung volumes and bibasilar atelectasis . 3 . Small right pleural effusion .