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Introduction The estimated prevalence of thyroid nodules in an adult population is 4–7% by palpation and 10–41% by ultrasound (US) scanning [ 1 , 2 ]. The overall malignancy risk, regardless of nodule size, is < 10%, and even smaller nodules
Department of Pathology, General University Hospital of Ciudad Real, Ciudad Real, Spain
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Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
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The Biomedical Research Institute of Malaga and Platform in Nanomedicine (IBIMA-BIONAND Platform), University of Malaga, Malaga, Spain
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The Biomedical Research Institute of Malaga and Platform in Nanomedicine (IBIMA-BIONAND Platform), University of Malaga, Malaga, Spain
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Department of Pathology, Virgen de la Victoria University Hospital, Málaga, Spain
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Department of Pathology, Virgen de la Victoria University Hospital, Málaga, Spain
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Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
The Biomedical Research Institute of Malaga and Platform in Nanomedicine (IBIMA-BIONAND Platform), University of Malaga, Malaga, Spain
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, 6 , 7 , 8 , 9 ). A cytological diagnosis carries a certain risk of malignancy (ROM), which has implications for clinical recommendations. While FNA is an efficient and cost-effective diagnostic procedure, it is important to note that histological
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clinical parameters, indications for FNA should be based on ultrasonographic malignancy risk stratification alongside clinical risk factors. Accuracy of Thyroid Ultrasound Features Certain features of thyroid nodules on ultrasound (US) are
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diagnosis [ 6 - 8 ]. Another diagnostic problem concerns patients with thyrotoxicosis or multinodular goitre without a cold nodule by scintigraphy, in which case FNA is not performed due to low risk of malignancy or because the patient will be referred to
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clinically apparent thyroid nodules is between 5 and 15% [ 2 ]. Fine-needle aspiration (FNA) cytology has demonstrated high utility in the diagnosis of thyroid nodules. In an effort to stratify thyroid nodules according to risk of malignancy in a consistent
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” diagnosis or Thy3 [ 8 , 9 ]. The reported risk of malignancy in this group is variable among different centers, ranging from 6 to 48% [ 10 ]. In this regard, the role of ultrasound has emerged as a practical and accurate tool in the risk stratification of
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years, thyroid cancer has an excellent prognosis with a 5-year disease-specific survival rate of over 95% ( 2 ). Increased risk of non-thyroidal second primary malignancy (NTSPM) in DTC patients has been reported in several cancer epidemiological and
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between 1995 and 2005 increased more than threefold, and the number of MRIs more than doubled [ 13 ]. It follows, not surprisingly, that the number of FNAs has also increased correspondingly [ 13 ]. Risk of Malignancy according to the Way of
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undetermined significance (AUS/FLUS), follicular neoplasm/suspicion of follicular neoplasm (FN/SFN), suspicion of malignancy (SFM), and malignant, respectively. A malignancy risk is assigned to each category to guide appropriate clinical management. In a
Servizio di Endocrinologia e Diabetologia, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
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University of Latvia, Faculty of Medicine, Riga, Latvia
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Facoltà di Scienze Biomediche, Università della Svizzera Italiana (USI), Lugano, Switzerland
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procedure ( 2 , 3 , 4 ). Despite the worldwide acceptance of US in evaluating the malignancy risk of TN, recent efforts aim to standardize the procedure to further improve its performance ( 5 ). In the past decade, prominent scientific societies have