Thyroid nodules with indeterminate cytology: association between nodule size, histopathological characteristics and clinical outcome in differentiated thyroid carcinomas - a multicenter retrospective cohort study on 761 patients.

Updates in Surgery
Federico CozzaniPaolo Del Rio

Abstract

A great number of surgical diagnostic procedures are performed every year for thyroid nodules that are included in undetermined cytological classes that reveal to be malignant thyroid carcinomas in one-third of cases. In the most recent guidelines, lobectomy is the most recommended surgical approach for this classes of nodules, but total thyroidectomy is the recommended treatment for undetermined nodules larger than 4 cm. The main study aim is to support or question the dimensional criteria as an independent clinical decision element for undetermined thyroid nodules management. We examined data regarding 761 patients undergoing thyroid surgery for undetermined thyroid nodules at two high-volume endocrine surgery units in Italy. Patients were divided into three groups based on the preoperative size of the nodules (N < 1, 1 < N < 4, N > 4 cm). Among the patients belonging to the different groups, we analyzed: differences in malignancy rate, histological characteristics of invasiveness and neoplastic aggressiveness, rates of recurrence and response to therapy. Nodule size (evaluated as a categorical variable and as a continuous variable) did not show any statistically significant correlation with the rate of malignancy, histopatho...Continue Reading

References

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Jul 6, 2014·Clinical Endocrinology·Petros PerrosUNKNOWN British Thyroid Association
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Jan 1, 2017·Journal of the American Society of Cytopathology : JASC·Edmund S Cibas, Syed Z Ali

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