Intrathyroidal Parathyroid Carcinoma: Report of an Unusual Case and Review of the Literature

<table>Intraoperative monitoring of PTH levels. Graph depicts marked decrease in parathyroid hormone levels following thyroidectomy. PTH hormone dropped initially from 579 to 40 pg/mL, then 83 pg/mL, and finally to 16 pg/mL. (PTH level is on <i>y</i>-axis, time is on <i>x</i>-axis, and shaded box represents PTH reference range from 15 to 65 pg/mL.)</table>

Case Reports in Pathology

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Figure 1

Figure 1: Intrathyroidal Parathyroid Carcinoma: Report of an Unusual Case and Review of the Literature 