Abstract
The widespread use of medical imaging to study diseases of the neck reveals the prevalence of thyroid nodules can be as high as 67%. This is an important problem for the healthcare system because after analyzing the characteristics of the nodules a decision must be made regarding whether to perform fine-needle aspiration cytology to determine whether the lesion is malignant. In this article, we review the techniques for ultrasonographic study and fine-needle aspiration. We discuss the different guidelines for characterizing thyroid nodules and the criteria that help determine which patients need fine-needle aspiration for diagnosis and when an invasive procedure is unnecessary and can be avoided. Close collaboration with the different specialists involved in the management of thyroid nodules helps optimize resources and diagnostic performance.
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