hashimoto s thyroiditis presenting as a single toxic adenoma a case report

• DOI: 10.22088/cjim.11.4.450
• Publication Date: 2020-01-01
• Authors: Adele Bahar; Mehrnoush Sohrab; Zahra Kashi

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 I(131)scintigraphy. 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.