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Hashimoto's thyroiditis presenting as a single toxic adenoma (A case report)
Mehrnoush Sohrab1, Zahra Kashi1, Adele Bahar1
1Diabetes research center, Mazandaran University of Medical Sciences, Sari, Iran.
Background:
Hashimoto's thyroiditis can be present with a localized palpable nodule though presentation as a hyperfunction "nodule" is extremely rare. The first case of Hashimoto's thyroiditis and hot nodule was reported in 1971 by Warner.
Case Presentation:
We reported a 26-year-old hypothyroid woman in Hashimoto's thyroiditis background with a hyperactive thyroid nodule in both 99mTc and I131scintigraphy. The nodule disappeared after eight months of sufficient thyroid hormone replacement therapy.
Conclusion:
Toxic adenoma in hypothyroid patients can be resolved after levothyroxine (L-T4) replacement therapy.
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