ABSTRACT
Ultrasound (US) is an imaging modality that is frequently used to evaluate the thyroid gland. It is an accessible and cost-effective tool providing an opportunity to visualize the gland and surrounding tissues for pathology. US allows for resolution of small structures, and therefore provides the ability to screen the thyroid for lesions as small as 2 mm. It is also used to assess surrounding anatomical structures, including the cervical lymph nodes, muscles, and vessels. Routine imaging is performed while the patient is in the supine position. Scanning of the neck takes place from the lower border of the neck to the level of soft tissues just above the sternal notch [1]. Some of the disadvantages of this modality include high dependence on operator and inferior resolution of adenopathy compared with cross-sectional imaging [2].
