Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is identified . There is evidence of both pneumopericardium and pneumomediastinum , likely postoperative in nature . Additionally noted is significant subcutaneous emphysema within the left thoracic soft tissues and cervical soft tissues .
    OUTPUT:
    
Pneumopericardium , pneumomediastinum , and subcutaneous emphysema , all likely secondary to the patient 's postoperative status .