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Figure 1. A 51-year-old woman presented for evaluation of a mediastinal mass. Eleven years earlier, she had undergone subtotal thyroidectomy for a large, multinodular goiter. The mediastinal mass was first detected on a routine chest film obtained two years later, but she did not return for further evaluation. She was asymptomatic throughout the nine-year period. Physical examination revealed only the surgical scar; no thyroid tissue was palpable. Serum thyrotropin and thyroxine concentrations were normal. A chest radiograph (Panel A) showed a mass with a maximal transverse diameter of 13 cm. Computed tomography of the thorax (Panel B) revealed a . . . [Full Text of this Article] |
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