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Differentiated thyroid cancer and Hashimoto’s thyroiditis at the national institute of oncology and radiobiology (2006-2010)

Abstract:

Objectives: to describe the behavior of the thyroid cancer in patients with Hashimoto’s thyroiditis. Methods: retrospective, longitudinal, descriptive and observational study of 71 patients suffering Hashimoto’s thyroiditis and treated at the National Institute of Oncology and Radiobiology during 2006 through 2010. Results: Hashimoto’s thyroiditis associated with thyroid nodules was more frequent in 50-59 years group and women were the most affected. Twelve (16.9 %) out of 71 patients who formed the universe of study were diagnosed with papillary thyroid carcinoma, all of them women. The incidence of thyroid cancer increased with the age. Transient hypoparathyroidism was the most important postoperative complication. Conclusions: the longer evolution of Hashimoto’s thyroiditis, the greater probability of occuring thyroid nodules, with the risk of developing thyroid cancer. The management of nodular Hashimoto’s thyroiditis is the same as that of thyroid nodule without thyroiditis. For their assessment, the main methods are fine needle aspiration biopsy, echography, freezing biopsy, prognostic and risks factors, and paraffin biopsy. Fine needle aspiration biopsy has is very important in the screening of a thyroid nodule.