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      Thyroid Cancer in Patients with Hyperthyroidism

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          Abstract

          Objective: The coexistence of hyperthyroidism and thyroid cancer is considered a rare event. With the aim of assessing the clinical relevance of this association, we have retrospectively analyzed the incidence of thyroid cancer in 425 hyperthyroid patients seen and treated by surgery in our institutions. Methods: Among these hyperthyroid patients, we observed 241 (56.7%) cases of multinodular toxic goiter, 120 (28.3%) of uninodular toxic goiter and 64 (15%) cases of Graves’ disease. Results: Thyroid cancer was diagnosed in 7 (1.65%) hyperthyroid patients. Histological examination revealed the presence of papillary carcinoma in 5 cases and follicular carcinoma in 2 cases. Neoplasia was detected in 4 patients with nodular toxic goiter and in 3 with uninodular toxic goiter. None of the patients with Graves’ disease had thyroid cancer. During the follow-up of 74 months (range 4–154), there were no deaths or any recurrences. Conclusion: Although the occurrence of thyroid cancer in hyperthyroid patients is a rare event, the presence of a ‘cold’ nodule in a hyperfunctioning thyroid should be carefully evaluated to exclude the presence of concurrent malignancy.

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          Most cited references 3

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          Multicentre study of thyroid nodules in patients with Graves' disease.

          The association of Graves' disease with thyroid nodules and thyroid carcinoma is rarely reported. The incidence seems to be increasing according to recent literature. The aim of this multicentre study was to review patients who had surgery for Graves' disease associated with thyroid nodules, and to evaluate the risk of thyroid carcinoma. A retrospective study was made of 557 consecutive patients who underwent operation for Graves' disease between 1991 and 1997 in five endocrine surgery departments. Each patient underwent clinical, biochemical, ultrasonographic and scintigraphic evaluation. None of the patients had had previous radioactive iodine therapy or external irradiation. Surgery consisted of either a subtotal or total thyroidectomy. Nodules were observed before operation in 140 patients (25.1 per cent). Thyroid carcinoma was diagnosed in 21 patients (15.0 per cent), always inside a nodule. The incidence of thyroid carcinoma associated with Graves' disease was 3.8 per cent (21 of 557 patients): 20 papillary and one follicular carcinoma. The carcinoma was multifocal in two patients. Tumour diameter ranged from 2 to 25 mm. A nodule was palpable in four patients. This multicentre study of patients having thyroidectomy for Graves' disease showed that 3.8 per cent had a carcinoma; the rate of carcinoma in cold nodules was 15.0 per cent. Surgery should be advised in any patient with Graves' disease and a thyroid nodule; the operation should be total thyroidectomy.
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            Application of an immunodiagnostic method for improving preoperative diagnosis of nodular thyroid lesions

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              Does Graves' disease or thyrotoxicosis affect the prognosis of thyroid cancer

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                Author and article information

                Journal
                HRE
                Horm Res Paediatr
                10.1159/issn.1663-2818
                Hormone Research in Paediatrics
                S. Karger AG
                1663-2818
                1663-2826
                2003
                2003
                31 July 2003
                : 60
                : 2
                : 79-83
                Affiliations
                Departments of aSurgery ‘Pietro Valdoni’ and bClinical Science, University of Rome ‘La Sapienza’, Rome, Italy
                Article
                71875 Horm Res 2003;60:79–83
                10.1159/000071875
                12876418
                © 2003 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Figures: 3, Tables: 2, References: 22, Pages: 5
                Categories
                Original Paper

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