Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again demonstrated is a second ventricular lead projecting from a left upper pacemaker generator pack . This is unchanged in configuration since the ___ radiographs . There is no pneumothorax , focal consolidation , or pleural effusion . The heart size remains normal .
    OUTPUT:
    
No pneumothorax . Unchanged configuration of the pacemaker leads .