Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well - expanded and clear lungs . The heart is moderately enlarged . There is no pneumothorax , pleural effusion , or consolidation . Left - sided pectoral pacemaker is in place with leads in the expected position .
    OUTPUT:
    
Status post left pectoral pacemaker placement with leads in the expected position .