Abstract
Thyroid nodules are a common clinical problem. Most of the discovered nodules are benign, however increase in thyroid cancer incidence has been reported. For management of thyroid nodules distinction between benign and malignant thyroid tumors is essential. Thyroid nodule management involves notice to: clinical features, biochemical tests, imaging studies, fine needle aspiration, thyroid scintigraphy and immunocytochemistry. In spite of different combinations of diagnostic tools used, it is still difficult to precisely determine malignant potential of thyroid nodules.