| Association of Autonomously Functioning Thyroid Nodules with Hashimoto's Thyroiditis: Study on A Large Series of Patients. | |
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MedLine Citation:
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PMID: 22068555 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: Autonomously functioning thyroid nodules (AFTNs) associated with Hashimoto's thyroiditis (HT) are rarely reported. This study evaluates the magnitude of such association, elaborating the clinical and biochemical characteristics of HT and AFTN. MATERIALS AND METHODS: We reviewed the records of our patients with thyroid nodules, including serum TSH, free T4 and T3, Tg-Ab, TPO-Ab, ultrasonography, Tc-99m Sodium Pertechnetate scintigraphy (performed in overt or subclinical hyperthyroid patients). HT patients with coexisting AFTN(s) (group A) were compared with patients with AFTNs alone (group B, n=267). RESULTS: 80 patients (65 women and 15 men; F:M ratio 4.3:1; age 57±15 years) had AFTN(s) and coexisting HT. Except 9 patients who were under methimazole, all had suppressed (<0.01 mU/L) or low (<0.4 mU/L) TSH; 17/71 (24%) had increased FT4 and/or FT3. Subclinical hyperthyroidism prevailed over frank hyperthyroidism in group A (76 vs. 24%), but not in group B (56 vs. 44%) ( P=0.005). Group A patients had lower serum FT3 (∼0.6 pmol/L or 9%) and FT4 (∼0.9 pmol/L or 4%) as compared to group B. The maximum diameter of the AFTN(s) was 8% smaller in group A as compared with group B, thus matching the said difference in FT3. A positive correlation between nodule size and age was found only in group B ( P=0.015). CONCLUSION: Even if difference in the size of nodules between groups A and B does not reach statistical significance, the chronic intrathyroid lymphocytic infiltration of HT may decrease the tendency of the AFTNs to grow and diminish their degree of functioning. |
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Authors:
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R M Ruggeri; A Campennì; A Sindoni; S Baldari; F Trimarchi; S Benvenga |
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Publication Detail:
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Type: Journal Article Date: 2011-11-08 |
Journal Detail:
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Title: Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association Volume: 119 ISSN: 1439-3646 ISO Abbreviation: Exp. Clin. Endocrinol. Diabetes Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9505926 Medline TA: Exp Clin Endocrinol Diabetes Country: Germany |
Other Details:
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Languages: eng Pagination: 621-7 Citation Subset: IM |
Copyright Information:
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© J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart · New York. |
Affiliation:
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Dipartimento Clinico-Sperimentale di Medicina e Farmacologia, Sezione di Endocrinologia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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