Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a right - sided cardiac pacing device with leads following the expected course to the right atrium and ventricle . Low lung volumes are persistent . Small right effusion is likely unchanged . Opacities in the left mid-lung follow the trajectory of a previously placed thoracostomy tube . A band of atelectasis at the right base is more pronounced . Mild vascular congestion is minimally changed from ___ . Widening of the mediastinum has mildly improved from ___ . No pneumothorax . Moderate cardiomegaly is chronic . A right IJ catheter terminates in the right atrium .
    OUTPUT:
    
Cardiac pacing leads following the expected course to the right atrium and ventricle . No pneumothorax .