Hurthle Cell Carcinoma
Hurthle cell carcinoma (HCC) is a histopathologic variant of follicular thyroid carcinoma. HCC is more aggressive than follicular tumors. It causes more nodal metastases than follicular cancer, and it has the highest metastatic frequency among the differentiated thyroid cancers. In this report, we describe a 50-year-old female patient who presented with an enlarging palpable mass in the left thyroid lobe for 3 years. Neck ultrasonography (USG) demonstrated a 4 × 2.5 × 4 cm heterogeneous isoechoic nodule in the left thyroid lobe. There was no pathologic lymph node on USG. The patient underwent a left hemithyroidectomy, and histopathological examination of the surgical specimen revealed a Hurthle cell carcinoma with a maximum diameter of 4.2 cm. Radioiodine ablation treatment (RAT) with 3700 MBq (100 mCi) iodine-131 (131I) was applied approximately 2 months after the operation. Six months after the RAT, diagnostic whole-body scintigraphy with 185 MBq (5 mCi) 131I was performed. The serum-stimulated Tg level and the 131I whole-body scintigraphy were entirely normal. There has been no evidence of disease, on the 8-year follow-up period. Despite of good response to therapy, due to high risk of HCC, the patient is still under close follow-up.
KeywordsHurthle cell carcinoma Differentiated thyroid cancer Follicular cell carcinoma
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