Anatomic Imaging

Ultrasonography provides detailed views that help measure the size of the thyroid gland, characterize its texture, and identify structural abnormalities including solid nodules and simple or partially cystic nodules. Diffuse heterogeneity may suggest autoimmune thyroiditis. Certain characteristics of nodules—including the appearance of capsules, vascularity, and patterns of calcification—can alter the probability of malignancy but do not confirm or exclude thyroid cancer with certainty. Imaging of surrounding structures may identify cervical lymphadenopathy not detectable on physical examination.

Certain characteristics of nodules—including the appearance of capsules, vascularity, and patterns of calcification—can alter the probability of malignancy but do not confirm or exclude thyroid cancer with certainty.

Thyroid Ultrasound

Ultrasonography is used increasingly to assist in the diagnosis of nodular thyroid disease, a reflection of the limitations of the physical examination and improvements in ultrasound technology. Using 10-MHz instruments, spatial resolution and image quality are excellent, allowing the detection of nodules and cysts >3 mm. In addition to detecting thyroid nodules, ultrasound is useful for monitoring nodule size and for the aspiration of cystic lesions. Ultrasound-guided FNA biopsy of thyroid lesions lowers the rate of inadequate sampling. Ultrasonography is also used in the evaluation of recurrent thyroid cancer, including possible spread to cervical lymph nodes.

한번은 갑상선혈관이 충만해서 항진증일 것이다 생각했는데 결과는 심한 저하증이었던 경험이 있습니다.