The aim of this chapter is to discuss the general aspects of ultrasonography (US) for the evaluation of head and neck endocrine diseases. The normal US presentation of the thyroid gland is discussed and US evaluation of thyroid diseases is summarized. Furthermore some paragraphs are dedicated to elucidate the significance of incidental lesions detected by US, the role of this method in the follow-up of thyroid cancer patients, and the use of US to guide fine-needle aspiration cytology (FNAC) or core needle biopsy (CNB). Lastly, the role of US in evaluating hyperfunctioning parathyroid glands is briefly described.
KeywordsUltrasonography Ultrasound Thyroid nodule Thyroid cancer Parathyroid Neck
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