Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a pacemaker overlying the left chest with leads that appear intact in the right atrium and right ventricle . There is a PA catheter , which is unchanged in comparison to the prior chest radiograph . The sternotomy wires appear intact appropriately aligned . There is a small unchanged right apical pneumothorax . Moderate vascular congestion , which has increased in comparison to the prior radiograph . Bibasilar atelectasis . The lungs are otherwise clear . Heart size is stable . The mediastinal and hilar contours are stable . No pleural effusion is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . PA catheter in appropriate positioning . 2 . Moderate vascular congestion , which has increased in comparison to the prior . 3 . Small unchanged right apical pneumothorax .