Teflon granuloma mimicking a thyroid tumor.

An unusual case is presented of a patient who developed a "thyroid" nodule following injection of Polytef into the left posterior vocal cord for impaired phonation. Fine-needle aspiration cytology was interpreted as suspicious for malignant cells. Histological evaluation revealed a benign granulomatous lesion with numerous Teflon particles. Review of the literature relating to Teflon injections is presented.