Parathyroid carcinoma. A rare disease with difficult diagnosis. Case report

Abstract

Parathyroid carcinoma is a rare tumor with occasional hormonal activity and symptoms of severe hypercalcemia. Diagnosis is achieved through pathology study and intraoperative findings. Surgery is often the treatment of choice. This is the case of a 61-year-old woman with a preoperative diagnosis of a 4 cm left thyroid nodule—follicular neoplasm (Bethesda category IV) treated with surgery, and with final diagnosis of parathyroid carcinoma. Surgical management and adjuvant therapy with radiotherapy were administered.