Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2018
Hashimoto's thyroiditis (HT) and chronic lymphocytic thyroiditis (CLT) are common autoimmune thyroid diseases.
Thyroid nodules are frequently observed in patients with these conditions.
The risk of malignancy in thyroid nodules associated with HT/CLT requires careful evaluation.
Purpose of the Study:
To analyze thyroid radionuclide imaging findings in patients with Hashimoto's thyroiditis (HT) and chronic lymphocytic thyroiditis (CLT).
To determine the prevalence of thyroid carcinoma in these patient groups.
To assess the diagnostic utility of radionuclide imaging in identifying malignant nodules.
Main Methods:
Retrospective review of thyroid radionuclide images from 51 adult patients.
Histological diagnosis of Hashimoto's thyroiditis (HT) or chronic lymphocytic thyroiditis (CLT).
Correlation of imaging findings with histological diagnoses and presence of thyroid carcinoma.
Main Results:
Variable but similar imaging patterns observed in both HT and CLT groups.
Multinodular patterns and hypofunctional nodules were the most common findings.
Thyroid carcinoma was detected in 4 out of 10 HT patients and 2 out of 41 CLT patients.
Conclusions:
Thyroid radionuclide imaging in HT/CLT often shows multinodular patterns and hypofunctional nodules.
A significant proportion of patients with HT were found to have thyroid carcinoma.
Surgical biopsy is recommended to exclude thyroid carcinoma in patients with clinical/laboratory evidence of HT and a "cold" nodule on radionuclide imaging.