A 39-year-old male non-smoking lumberyard worker from northern Mississippi was referred for evaluation of a left lower lobe mass. He had been treated 4 years earlier for papillary thyroid cancer with thyroidectomy and radioactive iodine ablation. Neck dissection after treatment showed 5/54 nodes with metastases and 3 nodes with granulomatous inflammation. He had been followed without evidence of recurrent malignancy until a CT obtained during a respiratory infection showed a left lower lobe mass extending to the hilum …