[Recurrent thyroid neoplasm with Hürtle cells-- case report]

The thiroidian tumor with Hürtle cells represents a rare clinical form of thyroid neoplasia and has a particular biological behavior. Tumors included in this category are those in which more than half of the cell population is made up of Hürtle cells. We present the case of a 58 years old woman with a recidivant oncocitic adenoma, four years after a subtotal bilateral thyroidectomy. The pathological examination using HE, van Gieson, AgNOR stains, the positive imunoreaction for thyreoglobulin LSAB and the ultrastructural examination established the definitive diagnosis. The surgical treatment is the main therapeutic measure and must be performed under oncological curative principles: lobectomy for the benign forms and total thyroidectomy for the malignant ones. The malignant potential is higher than for other well differentiated thyroidian carcinomas.