Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison is a study of 1 day prior , single lead ICD lead is unchanged in position . Cardiomediastinal silhouette including mild cardiomegaly is stable . Lung volumes are slightly increased . Pulmonary vascular congestion and a small right pleural effusion with a loculated component appear similar . The sternotomy wires and mediastinal clips are noted .
    OUTPUT:
    
1 . Stable positioning of single lead ICD . 2 . Stable pulmonary vascular congestion and small right pleural effusion with a loculated component .