Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Dual lead left - sided pacemaker is unchanged in position . Retained pacer fragment overlying the left apex is again seen . Slight prominence of the hila may be due to pulmonary vascular engorgement . No focal consolidation , pleural effusion , for evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Possible slight pulmonary vascular engorgement without overt pulmonary edema .