Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Dual - lead pacemaker is noted with leads extending to the right atrium and right ventricle . Elevated right hemidiaphragm is noted with underlying gas - filled bowel . There is bibasilar atelectasis . No large effusions . Heart size and mediastinal contour are normal . Bony structures are intact .
    OUTPUT:
    
Bibasilar atelectasis . Gas-filled bowel in the upper abdomen can be further assessed on the subsequent CT of the abdomen and pelvis .