English ReferencesA8 Thyroid sono graphy■ RECOMMENDATION 6Thyroid sono graphy with survey of the cervical lymph no des should be performed in all patients with known or suspected thyroid nodules Stron

ty (hyperechoic, isoechoic, or hypoechoic), margins (well-defined or ill-defined), shape (round, oval, or irregular), and presence of calcifications (microcalcifications or macrocalcifications). The report should also note any suspicious features, such as irregular margins, microcalcifications, or taller-than-wide shape, which may increase the risk of malignancy. In addition, if any suspicious lymph nodes are identified, the size, location, and sonographic characteristics should be described. Ultrasound-guided fine needle aspiration biopsy (FNA) should be performed on nodules that are ≥1 cm, have suspicious characteristics, or have grown over time. FNA should also be considered for nodules <1 cm if suspicious features are present or if the patient has a history of radiation exposure