Autores: J. R. de M. C. Montoro, A. S. Fava, A. L. Sartini, L. R. Mattiola, A. J. P. de Brito, G. P. da Costa Autor Correspondente: José Raphael de Moura Campos Montoro | [email protected]
Introduction: Parathyroid carcinoma is an uncommon malignancy. It accounts for less than 1% of cases of primary
hyperparathyroidism. It is manifested by severe hypercalcemia and up to 50% of patients will have
concomitant kidney or bone disease.
Case Report: In this paper we reported a case of parathyroid carcinoma in a 46 year old woman with elevated
parathyroid hormone level, with kidney insufficiency and suspected tertiary hyperparathyroidism.
Conclusion: The etiology of parathyroide carcinoma is unknown. The preoperative differential diagnosis between
parathyroid carcinoma and primary hyperparathyroidism is often difficult because many of the signs
and symptoms are very similar. The optimal surgical treatment is en bloc tumor resection with ipsilateral
thyroid lobectomy. The course of patients with parathyroid carcinoma is variable. More than 50% have
persistent or recurrent disease due to regional or distant disease.