Taehan Ch'oŭmp'a Ŭihakhoe chi; The journal of the Korean Society of Medical Ultrasound; Journal of Korean Society of Ultrasound in Medicine; 대한초음파의학회지
PURPOSE: To demonstrate sonographic features of Hashimoto's thyroiditis according to the thyroid function.
MATERIALS and METHODS: We reviewed 54 thyroid ultrasonographic examinations of untreated Hashimoto's thyroiditis. We reviewed thyroid ultarasonographic
examinations and focused on the presence of ill defined low echoic lesion and glandular
enlargement. We performed another thyroid ultrasonographic examination of 14 healthy
volunteers, in order to obtain normal size of thyroid gland. Comparision was made
between these morphologic charecteristics and functional stage of the disease.
RESULTS: The mean diameter of thyroid gland was 2.16±0.43㎝ in patients with Hashimoto's thyroiditis, and 1.41±0.42㎝ in normal control group of the thyroid gland.
There was no statistically significant relationship between thyroid function and size.
There was morphologic abnormalities in 46 patients(85％). Among them, 7 patients
revealed diffuse low echogenity in the entire thyroid gland, 32patients showed
peripherally located, ill defined focal hypoechoic lesion, and 7 patients showed solitary or multiple, well defined nodular lesions. decreased echogenity of the thyroid of the thyroid gland was related to hypothyroid status.
CONCLUSION: Hashimoto's thyroiditis has specific morphologue charecteristics in
ultrasonographic features, which are well correlated with thyroid function.
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