Endocrine tumors: evaluation of the thyroid nodule

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Abstract
Thyroid nodules are found in 4 to 7% of the population, and with the increased use of radiographic methods, incidental nodules are becoming more prevalent. Only 5% of all nodules will be malignant, and thyroid cancer accounts for only 0.4% of all cancer deaths. The preferred diagnostic approach is early referral, avoidance of numerous radiologic evaluations, and early performance fine-needle aspiration. This article reviews the literature of the last 12 months and discusses some of the new molecular, genetic, and immunostaining techniques in the evaluation of thyroid nodules.