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KMID : 0361020100530010030
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Korean Journal of Otolaryngology - Head and Neck Surgery
2010 Volume.53 No. 1 p.30 ~ p.36
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Clinical Menifestation and Anaylsis of Thyroid Follicular Carcinoma
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Mo Jeong-A
Lee Guk-Haeng
Lee Byeong-Cheol
Lee Myung-Chul
Jung Moon-Sang
Cho Pyung-San
Shim Yoon-Sang
Lee Yong-Sik
Jun Byoung-Sam
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Abstract
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Background and ObjectivesZZFollicular thyroid carcinoma (FTC) is the second most common thyroid malignancy after papillary thyroid carcinoma. We performed this study to obtain further understanding and more supporting ideas for the diagnosis and treatment of thyroid follicular carcinoma. Subjects and MethodZZOver a 12-year period, 126 patients surgically treated for FTC with an average follow-up of 57.5 months were retrospectively studied. ResultsZZEighteen (14.3%) patients had distant metastasis at presentation and completion thyroidectomy was performed for 58 patients (46%) after partial thyroidectomy. This implies how difficult it is to diagnosis this type of cancer at the preoperative or intra-operative stage of treatment. Fine-needle aspiration cytology has been shown to be an ineffective method for the diagnosis of FTC. Five patients developed recurrent distant metastasis 6 month after their initial treatment and 3 patients died of persistent distant metastatic disease. The 10-year overall survival rate were 97.6%, and 10-year disease free survival rate was 82.5%. The patients with minimally invasive follicular carcinoma (n=92) and low risk group according to AMES classification, stage IV in TNM classification had more favorable prognosis. But the results showed no statistically significant difference. ConclusionZZSeveral staging systems can be applied specifically to patients with FTC. The distinction of FTC in minimally invasive and widely invasive carcinoma, analysis of prognostic factor (recurrence, local invasion, distant metastasis, age, tumor size) is important in identifying low risk patients for a more conservative treatment.
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KEYWORD
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Thyroid neoplasm, Follicular carcinoma
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