Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left pectoral dual - chamber pacemaker and its leads project in unchanged location compared with multiple prior studies . Mild pulmonary vascular congestion is new from the immediate prior study . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette , including moderate cardiomegaly , is unchanged .
    OUTPUT:
    
1 . New mild pulmonary vascular congestion . 2 . Unchanged appearance of the left pectoral dual - chamber pacemaker and its leads .