Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral pacemaker is unchanged in position with two leads terminating in the right atrium and right ventricle . The patient is status post median sternotomy with intact appearing wires . Multiple mediastinal surgical clips are compatible with prior CABG surgery . The cardiomediastinal silhouette remains prominent but stable in comparison to the prior study . The inspiratory lung volumes are persistently low with mild bibasilar atelectasis . Mild pulmonary vascular congestion is unchanged . No focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . No acute osseous abnormality is identified .
    OUTPUT:
    
Stable appearance of the chest with low lung volumes , bibasilar atelectasis and mild pulmonary vascular congestion .