Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . Pacing leads from a left chest generator project over the expected positions in the right atrium and right ventricle . Mild cardiomegaly is similar . No pneumothorax , pleural effusion , or consolidation is present . Median sternotomy wires and mediastinal clips are in the expected positions .
    OUTPUT:
    
Expected position of dual - chamber pacing leads .