Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pleural effusion , or pneumothorax . Cardiomediastinal and hilar silhouettes are normal size . There is mild atelectasis at right lung base . There is a left pectoral pacemaker with a lead terminating at the right ventricle .
    OUTPUT:
    
There is a left pectoral pacemaker with a lead terminating at the right ventricle . No pneumothorax .