超声已经成为临床上评估甲状腺结节的首选影像学检查，超声不仅可以评估甲状腺结节的性质，还可评估颈部淋巴结的状况,是术前评估甲状腺微小癌及颈部淋巴结状况最重要的影像学检查方法。

Ultrasound diagnosis of thyroid microcarcinoma       ZHAN Wei-wei. Department of Ultrasound Diagnosis and Treatment, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200025, China
Abstract    Ultrasonography (US) is increasingly being used by endocrinologists and surgeons in the diagnosis and management of patients with thyroid nodules. US may be used to help stratify the risk of malignancy in thyroid nodules and cervical lymph nodes. US plays an important role in the preoperative evaluation of thyroid microcarcinoma and cervical lymph nodes.