Abstract

Objectives: To describe some ultrasound findings of thyroid cancer and to assess the value of thyroid ultrasound and ultrasound-guided fine-needle aspiration in diagnosing thyroid cancer.

Methods: A descriptive study was conducted on patients with thyroid nodules examined and treated at Thainguyen National Hospital. Ultrasound findings of thyroid ultrasound were shown and classified with K-TIRADS 2016. Cytological findings of  ultrasound-guided fine-needle aspiration were classified with Bethesda 2017. The results were compared with pathologic results in order to evaluate the value of ultrasound findings, classification of ultrasound findings with K-TIRADS 2016 and cytological findings of US-FNA.

Results: Of 172 thyroid nodules, 47 were malignant (27.3%), 125 were benign. Common ultrasound findings of thyroid cancer were: hypoechoic solid component, taller-than-wider shape, irregular margins, microcalcifications. Thyroid ultrasound with K-TIRADS 2016 had significance for predicting the risk of thyroid cancer. Thyroid ultrasound with K-TIRADS 2016 and cytology clsassification with Bethesda 2017 of US-FNA had high diagnostic compatibility.
Conclusion: Thyroid ultrasound has a important role in screening and diagnosis for thyroid cancer. Ultrasound-guided fine-needle aspiration has a high significance for diagnosing thyroid cancer.