Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , and multiple mediastinal surgical clips reflect prior thymoma resection . Streaky bilateral paramediastinal , predominately upper lobe , fibrotic changes are compatible with prior radiation treatment as seen on the prior CT , and there may be mild central vascular congestion . No pleural effusion is seen . No focal consolidation or overt pulmonary edema is noted . The heart is top - normal in size . No intra-abdominal free air is noted in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process . No intra-abdominal free air seen .