Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Dual lead left - sided pacer device is stable in position . Bibasilar atelectasis is seen without definite focal consolidation . There may be minimal vascular congestion . There is no large pleural effusion or pneumothorax . The cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are stable . No displaced rib fracture seen .
    OUTPUT:
    
Bibasilar atelectasis without definite focal consolidation .