Malignant Thyroid Teratoma with Neuroectodermal Component: A Case Report

Malignant thyroid teratoma comprises a rare disease with a poor prognosis in the adult patient; we report the case of a 38-year-old male patient with rapidly growing neck mass undergoing thyroidectomy without lymph node emptying with a pathological report of malignant thyroid teratoma with a neuroectodermal component that was treated with chemotherapy and radiotherapy. After 12 months of follow-up, the patient remains stable and there is no relapse of disease. This is the first case to our knowledge of Malignant Thyroid Teratoma with neuroectodermal component in Ecuador.