Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval placement of left pectoral pacemaker with right atrial and right ventricular pacer leads in expected positions . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Pacer leads in expected positions . No pneumothorax or pleural effusions .