Hurthle cell tumors of the thyroid gland.

Hurthle cell lesions of the thyroid gland, which are derived from follicular cells, occur in a variety of thyroid diseases. Hurthle cell neoplasms are generally easy to differentiate from non-neoplastic lesions, but the separation of benign from malignant Hurthle cell tumors is difficult on a purely histologic basis unless capsular or vascular invasion or metastases are present. Since this distinction is so difficult to make, the authors recommend treating all Hurthle cell neoplasms as potentially malignant. Treatment includes total thyroidectomy, peritracheal node dissection and if palpable jugular nodes are present, a regional node dissection. A series of 11 patients with this disease and the literature are reviewed to document these recommendations.