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Calle S, Choi J, Ahmed S, Bell D, Learned KO. Imaging of the Thyroid: Practical Approach. Neuroimaging Clin N Am 2021; 31:265-284. [PMID: 34243863 DOI: 10.1016/j.nic.2021.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Imaging evaluation of the thyroid gland spans a plethora of modalities, including ultrasound imaging, cross-sectional studies, and nuclear medicine techniques. The overlapping of clinical and imaging findings of benign and malignant thyroid disease can make interpretation a complex undertaking. We aim to review and simplify the vast current literature and provide a practical approach to the imaging of thyroid disease for application in daily practice. Our approach highlights the keys to differentiating and diagnosing common benign and malignant disease affecting the thyroid gland.
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Affiliation(s)
- Susana Calle
- Department of Neuroradiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street Unit 1482, Houston, TX 77030, USA.
| | - Jeanie Choi
- Neuroradiology Section, Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Salmaan Ahmed
- Department of Neuroradiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street Unit 1482, Houston, TX 77030, USA
| | - Diana Bell
- Head and Neck Section, Departments of Pathology and Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Kim O Learned
- Department of Neuroradiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street Unit 1482, Houston, TX 77030, USA
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2
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Zhou J, Yin L, Wei X, Zhang S, Song Y, Luo B, Li J, Qian L, Cui L, Chen W, Wen C, Peng Y, Chen Q, Lu M, Chen M, Wu R, Zhou W, Xue E, Li Y, Yang L, Mi C, Zhang R, Wu G, Du G, Huang D, Zhan W. 2020 Chinese guidelines for ultrasound malignancy risk stratification of thyroid nodules: the C-TIRADS. Endocrine 2020; 70:256-279. [PMID: 32827126 DOI: 10.1007/s12020-020-02441-y] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
Thyroid nodules are very common all over the world, and China is no exception. Ultrasound plays an important role in determining the risk stratification of thyroid nodules, which is critical for clinical management of thyroid nodules. For the past few years, many versions of TIRADS (Thyroid Imaging Reporting and Data System) have been put forward by several institutions with the aim to identify whether nodules require fine-needle biopsy or ultrasound follow-up. However, no version of TIRADS has been widely adopted worldwide till date. In China, as many as ten versions of TIRADS have been used in different hospitals nationwide, causing a lot of confusion. With the support of the Superficial Organ and Vascular Ultrasound Group of the Society of Ultrasound in Medicine of the Chinese Medical Association, the Chinese-TIRADS that is in line with China's national conditions and medical status was established based on literature review, expert consensus, and multicenter data provided by the Chinese Artificial Intelligence Alliance for Thyroid and Breast Ultrasound.
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Affiliation(s)
- JianQiao Zhou
- Department of Ultrasound, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200025, China.
| | - LiXue Yin
- Institute of Ultrasound in Medicine, The Affiliated Sichuan Provincial People's Hospital of Electronic Science and Technology University of China, Chengdu, 610071, China.
| | - Xi Wei
- Department of Diagnostic and Therapeutic Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Sheng Zhang
- Department of Diagnostic and Therapeutic Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - YanYan Song
- Department of Biostatistics, Institute of Medical Sciences, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - BaoMing Luo
- Department of Ultrasound, SunYat-sen Memorial Hospital, SunYat-sen University, Guangzhou, 510120, China
| | - JianChu Li
- Department of Ultrasound, Peking Union Medical College Hospital, Beijing, 100730, China
| | - LinXue Qian
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - LiGang Cui
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Wen Chen
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - ChaoYang Wen
- Department of Ultrasound, Peking University International Hospital, Beijing, 102206, China
| | - YuLan Peng
- Department of Ultrasound, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Qin Chen
- Department of Ultrasound, The Affiliated Sichuan Provincial People's Hospital of Electronic Science and Technology University of China, Chengdu, 610071, China
| | - Man Lu
- Department of Ultrasound, Sichuan Cancer Hospital, Chengdu, 610041, China
| | - Min Chen
- Department of Ultrasound, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Rong Wu
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 201620, China
| | - Wei Zhou
- Department of Ultrasound, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200025, China
| | - EnSheng Xue
- Department of Ultrasound, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - YingJia Li
- Department of Ultrasound, Nanfang Hospital of Southern Medical University, Guangzhou, 510515, China
| | - LiChun Yang
- Department of Ultrasound, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, 650031, China
| | - ChengRong Mi
- Department of Ultrasound, General Hospital of Ningxia Medical University, Yinchuan, 750021, China
| | - RuiFang Zhang
- Department of Ultrasound, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, China
| | - Gang Wu
- Department of Ultrasound, Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - GuoQing Du
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - DaoZhong Huang
- Department of Ultrasound, Tongji Hospital, Tongji Medical Colloge, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - WeiWei Zhan
- Department of Ultrasound, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200025, China.
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Abstract
Thyroid ultrasound with gray-scale and color Doppler is the most helpful imaging modality to differentiate normal thyroid parenchyma from diffuse or nodular thyroid disease by evaluating glandular size, echogenicity, echotexture, margins, and vascularity. The various causes of diffuse thyroid disease often have overlapping sonographic imaging features. Thyroid nodules may be hyperplastic or neoplastic, with most due to benign hyperplastic changes in architecture and benign follicular adenomas; only a small percentage are malignant. A systematic approach to nodule morphology that includes evaluation of composition, echogenicity, margin, shape, and any echogenic foci can guide decision to biopsy or follow nodules.
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Nguyen XV, Job J, Fiorillo LE, Sipos J. Thyroid Incidentalomas: Practice Considerations for Radiologists in the Age of Incidental Findings. Radiol Clin North Am 2020; 58:1019-1031. [PMID: 33040845 DOI: 10.1016/j.rcl.2020.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Radiologists very frequently encounter incidental findings related to the thyroid gland. Given increases in imaging use over the past several decades, thyroid incidentalomas are increasingly encountered in clinical practice, and it is important for radiologists to be aware of recent developments with respect to workup and diagnosis of incidental thyroid abnormalities. Recent reporting and management guidelines, such as those from the American College of Radiology and American Thyroid Association, are reviewed along with applicable evidence in the literature. Trending topics, such as artificial intelligence approaches to guide thyroid incidentaloma workup, are also discussed.
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Affiliation(s)
- Xuan V Nguyen
- Division of Neuroradiology, Department of Radiology, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, OH 43210, USA.
| | - Joici Job
- Division of Neuroradiology, Department of Radiology, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, OH 43210, USA
| | - Lauren E Fiorillo
- Division of Abdominal Imaging, Department of Radiology, The Ohio State University Wexner Medical Center, 395 West 12th Avenue, Columbus, OH 43210, USA
| | - Jennifer Sipos
- Division of Endocrinology, Diabetes, and Metabolism, The Ohio State University Wexner Medical Center, 1581 Dodd Drive, McCampbell Hall, Columbus, OH 43210, USA
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Patel KN, Angell TE, Babiarz J, Barth NM, Blevins T, Duh QY, Ghossein RA, Harrell RM, Huang J, Kennedy GC, Kim SY, Kloos RT, LiVolsi VA, Randolph GW, Sadow PM, Shanik MH, Sosa JA, Traweek ST, Walsh PS, Whitney D, Yeh MW, Ladenson PW. Performance of a Genomic Sequencing Classifier for the Preoperative Diagnosis of Cytologically Indeterminate Thyroid Nodules. JAMA Surg 2019; 153:817-824. [PMID: 29799911 DOI: 10.1001/jamasurg.2018.1153] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Importance Use of next-generation sequencing of RNA and machine learning algorithms can classify the risk of malignancy in cytologically indeterminate thyroid nodules to limit unnecessary diagnostic surgery. Objective To measure the performance of a genomic sequencing classifier for cytologically indeterminate thyroid nodules. Design, Setting, and Participants A blinded validation study was conducted on a set of cytologically indeterminate thyroid nodules collected by fine-needle aspiration biopsy between June 2009 and December 2010 from 49 academic and community centers in the United States. All patients underwent surgery without genomic information and were assigned a histopathology diagnosis by an expert panel blinded to all genomic information. There were 210 potentially eligible thyroid biopsy samples with Bethesda III or IV indeterminate cytopathology that constituted a cohort previously used to validate the gene expression classifier. Of these, 191 samples (91.0%) had adequate residual RNA for validation of the genomic sequencing classifier. Algorithm development and independent validation occurred between August 2016 and May 2017. Exposures Thyroid nodule surgical histopathology diagnosis by an expert panel blinded to all genomic data. Main Outcomes and Measures The primary end point was measurement of genomic sequencing classifier sensitivity, specificity, and negative and positive predictive values in biopsies from Bethesda III and IV nodules. The secondary end point was measurement of classifier performance in biopsies from Bethesda II, V, and VI nodules. Results Of the 183 included patients, 142 (77.6%) were women, and the mean (range) age was 51.7 (22.0-85.0) years. The genomic sequencing classifier had a sensitivity of 91% (95% CI, 79-98) and a specificity of 68% (95% CI, 60-76). At 24% cancer prevalence, the negative predictive value was 96% (95% CI, 90-99) and the positive predictive value was 47% (95% CI, 36-58). Conclusions and Relevance The genomic sequencing classifier demonstrates high sensitivity and accuracy for identifying benign nodules. Its 36% increase in specificity compared with the gene expression classifier potentially increases the number of patients with benign nodules who can safely avoid unnecessary diagnostic surgery.
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Affiliation(s)
- Kepal N Patel
- Division of Endocrine Surgery, Department of Surgery, New York University Langone Medical Center, New York
| | - Trevor E Angell
- Division of Endocrinology, Diabetes, and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Joshua Babiarz
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Neil M Barth
- Department of Medical Affairs, Veracyte Inc, San Francisco, California.,Department of Clinical Affairs, Veracyte Inc, San Francisco, California
| | | | - Quan-Yang Duh
- Section of Endocrine Surgery, Department of Surgery, University of California, San Francisco
| | - Ronald A Ghossein
- Division of Head and Neck Pathology, Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - R Mack Harrell
- The Memorial Center for Integrative Endocrine Surgery, Hollywood, Florida.,The Memorial Center for Integrative Endocrine Surgery, Weston, Florida.,The Memorial Center for Integrative Endocrine Surgery, Boca Raton, Florida
| | - Jing Huang
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Giulia C Kennedy
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Su Yeon Kim
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Richard T Kloos
- Department of Medical Affairs, Veracyte Inc, San Francisco, California
| | - Virginia A LiVolsi
- Anatomic Pathology Division, Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia
| | - Gregory W Randolph
- Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston
| | - Peter M Sadow
- Head and Neck Pathology Subspecialty, Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston
| | | | - Julie A Sosa
- Section of Endocrine Surgery, Department of Surgery, Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
| | | | - P Sean Walsh
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Duncan Whitney
- Department of Research and Development, Veracyte Inc, San Francisco, California
| | - Michael W Yeh
- Department of Surgery, Endocrine Surgery Program, David Geffen School of Medicine at UCLA, University of California, Los Angeles
| | - Paul W Ladenson
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Raj SD, Ram R, Sabbag DJ, Sultenfuss MA, Matejowsky R. Thyroid Fine Needle Aspiration: Successful Prospective Implementation of Strategies to Eliminate Unnecessary Biopsy in the Veteran Population. Curr Probl Diagn Radiol 2019; 48:127-131. [DOI: 10.1067/j.cpradiol.2017.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/27/2017] [Accepted: 12/12/2017] [Indexed: 01/25/2023]
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Chen L, Zhang J, Meng L, Lai Y, Huang W. A new ultrasound nomogram for differentiating benign and malignant thyroid nodules. Clin Endocrinol (Oxf) 2019; 90:351-359. [PMID: 30390403 DOI: 10.1111/cen.13898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 10/26/2018] [Accepted: 10/31/2018] [Indexed: 01/25/2023]
Abstract
OBJECTIVE The Thyroid Imaging Reporting and Data System (TI-RADS) is commonly used for risk stratification of thyroid nodules. However, this system has a poor sensitivity and specificity. The aim of this study was to build a new model based on TI-RADS for evaluating ultrasound image patterns that offer improved efficacy for differentiating benign and malignant thyroid nodules. DESIGN AND PATIENTS The study population consisted of 1092 participants with thyroid nodules. MEASUREMENTS The nodules were analysed by the TI-RADS and the new model. The prediction properties and decision curve analysis of the nomogram were compared between the two models. RESULTS The proportions of thyroid cancer and benign disease were 36.17% and 63.83%. The new model showed good agreement between the prediction and observation of thyroid cancer. The nomogram indicated excellent prediction properties with an area under the curve (AUC) of 0.946, sensitivity of 0.884 and specificity of 0.917 for training data as well as a high sensitivity, specificity, negative predictive value and positive predictive value for the validation data also. The optimum cut-off for the nomogram was 0.469 for predicting cancer. The decision curve analysis results corroborated the good clinical applicability of the nomogram and the TI-RADS for predicting thyroid cancer with wide and practical ranges for threshold probabilities. CONCLUSIONS Based on the TI-RADS, we built a new model using a combination of ultrasound patterns including margin, shape, echogenic foci, echogenicity and nodule halo sign with age to differentiate benign and malignant thyroid nodules, which had high sensitivity and specificity.
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Affiliation(s)
- Ling Chen
- Department of Ultrasound Imaging, Guangdong Province Hospital of Chinese Medicine, Guangdong, China
| | - Jianxing Zhang
- Department of Ultrasound Imaging, Guangdong Province Hospital of Chinese Medicine, Guangdong, China
| | - Lingcui Meng
- Department of Ultrasound Imaging, Guangdong Province Hospital of Chinese Medicine, Guangdong, China
| | - Yunsi Lai
- Department of Ultrasound Imaging, Guangdong Province Hospital of Chinese Medicine, Guangdong, China
| | - Wenyuan Huang
- Department of Ultrasound Imaging, Guangdong Province Hospital of Chinese Medicine, Guangdong, China
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8
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Ahn HS, Kim DW, Lee YJ, Lee CY, Kim JH, Choi YJ, Lee S, Ryoo I, Huh JY, Sung JY, Kwak JY, Baek HJ. Postoperative Neck Ultrasonography Surveillance After Thyroidectomy in Patients With Medullary Thyroid Carcinoma: A Multicenter Study. Front Endocrinol (Lausanne) 2018; 9:102. [PMID: 29599750 PMCID: PMC5862825 DOI: 10.3389/fendo.2018.00102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 03/01/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND For detecting tumor recurrence of medullary thyroid carcinoma (MTC) in the neck, an appropriate frequency and interval of postoperative ultrasonography (US) surveillance remains unclear. This study aimed to assess an appropriate interval and frequency of postoperative neck US surveillance for detecting tumor recurrence in patients who had undergone thyroid surgery due to MTC. METHODS A total of 86 patients who had undergone thyroid surgery for the treatment of MTC and had at least one postoperative US follow-up examination at any of nine affiliated hospitals were included. Postoperative follow-up US, clinical, and histopathological results of patients were reviewed. The tumor recurrence/persistence rate of MTC was investigated, and the interval and session number of postoperative follow-up US and clinicopathologic factors were compared between tumor recurrence/persistence and non-recurrence groups. RESULTS Of the 86 patients, 22 (25.6%) showed tumor recurrence/persistence. Of the 22 patients with tumor recurrence/persistence, 11 (50%) showed structural recurrence/persistence in the neck on follow-up US. In these 11 patients, the mean interval and session number of postoperative follow-up US between initial surgery and the first US detection of recurrence/persistence was 41.3 ± 39.3 months (range, 6-128 months) and 2.6 ± 2.3 (range, 1-8), respectively. On follow-up US, 6 (54.5%, 6/11) were diagnosed with tumor recurrence/persistence within 3 years of the initial surgery. Tumor recurrence/persistence was significantly correlated with TNM stage (p < 0.001) and multiplicity/bilaterality (p = 0.013). CONCLUSION For detecting MTC recurrence/persistence, postoperative US surveillance at 1-year intervals may be sufficient within the first 3 years after thyroid surgery, but depending on the presence of relevant risk factors, annual or biannual US surveillance may be recommendable for 4-10 years after thyroid surgery.
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Affiliation(s)
- Hye Shin Ahn
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Dong Wook Kim
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
- *Correspondence: Dong Wook Kim,
| | - Yoo Jin Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Chang Yoon Lee
- Department of Radiology, Research Institute and Hospital, National Cancer Center, Gyeonggi, South Korea
| | - Ji-hoon Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Jung Choi
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Song Lee
- Department of Radiology, Chak Han Madi Hospital, Incheon, South Korea
| | - Inseon Ryoo
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Jung Yin Huh
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jin Yong Sung
- Department of Radiology, Thyroid Center, Daerim St. Mary’s Hospital, Seoul, South Korea
| | - Jin Young Kwak
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Jin Baek
- Department of Radiology, Gyeongsang National University School of Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
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Abstract
OBJECTIVE Our objective was to create a user-friendly synoptically driven web-based tool for radiologists to report thyroid ultrasound studies and thereby improve the quality, completeness, and recommendations of reports. CONCLUSION The tool, developed using JavaScript and PHP (hypertext preprocessor), provides radiologists with a way to generate complete thyroid ultrasound reports and automatically categorize thyroid nodules of varying suspicion. Future work will focus on integration with the radiology information system for seamless reporting and the development of a prospective database.
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Russ G, Bonnema SJ, Erdogan MF, Durante C, Ngu R, Leenhardt L. European Thyroid Association Guidelines for Ultrasound Malignancy Risk Stratification of Thyroid Nodules in Adults: The EU-TIRADS. Eur Thyroid J 2017; 6:225-237. [PMID: 29167761 PMCID: PMC5652895 DOI: 10.1159/000478927] [Citation(s) in RCA: 644] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 06/17/2017] [Indexed: 01/04/2023] Open
Abstract
Thyroid ultrasound (US) is a key examination for the management of thyroid nodules. Thyroid US is easily accessible, noninvasive, and cost-effective, and is a mandatory step in the workup of thyroid nodules. The main disadvantage of the method is that it is operator dependent. Thyroid US assessment of the risk of malignancy is crucial in patients with nodules, in order to select those who should have a fine needle aspiration (FNA) biopsy performed. Due to the pivotal role of thyroid US in the management of patients with nodules, the European Thyroid Association convened a panel of international experts to set up European guidelines on US risk stratification of thyroid nodules. Based on a review of the literature and on the American Association of Clinical Endocrinologists, American Thyroid Association, and Korean guidelines, the panel created the novel European Thyroid Imaging and Reporting Data System, called EU-TIRADS. This comprises a thyroid US lexicon; a standardized report; definitions of benign and low-, intermediate-, and high-risk nodules, with the estimated risks of malignancy in each category; and indications for FNA. Illustrated by numerous US images, the EU-TIRADS aims to serve physicians in their clinical practice, to enhance the interobserver reproducibility of descriptions, and to simplify communication of the results.
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Affiliation(s)
- Gilles Russ
- Thyroid and Endocrine Tumors, Institute of Endocrinology, Pitié Salpêtrière Hospital, Pierre and Marie Curie University, Paris, France
| | - Steen J. Bonnema
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Murat Faik Erdogan
- Department of Endocrinology and Metabolism, University of Ankara School of Medicine, İbni Sina Hastanesi, Ankara, Turkey
| | - Cosimo Durante
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Rose Ngu
- Head Neck and Thyroid Imaging, Department of Radiology, Guy's and St Thomas' Hospitals NHS Foundation Trust, London, UK
| | - Laurence Leenhardt
- Thyroid and Endocrine Tumors, Institute of Endocrinology, Pitié Salpêtrière Hospital, Pierre and Marie Curie University, Paris, France
- *Laurence Leenhardt, MD, PhD, Thyroid and Endocrine Tumors Institute of Endocrinology, Pitié Salpêtrière Hospital, Pierre and Marie Curie University, 83 Bd de l'Hôpital, FR–75651 Paris Cedex 13 (France), E-Mail
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11
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Tessler FN, Middleton WD, Grant EG, Hoang JK, Berland LL, Teefey SA, Cronan JJ, Beland MD, Desser TS, Frates MC, Hammers LW, Hamper UM, Langer JE, Reading CC, Scoutt LM, Stavros AT. ACR Thyroid Imaging, Reporting and Data System (TI-RADS): White Paper of the ACR TI-RADS Committee. J Am Coll Radiol 2017; 14:587-595. [PMID: 28372962 DOI: 10.1016/j.jacr.2017.01.046] [Citation(s) in RCA: 1187] [Impact Index Per Article: 169.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 12/21/2016] [Accepted: 01/30/2017] [Indexed: 02/06/2023]
Abstract
classification that is widely used in breast imaging, their authors chose to apply the acronym TI-RADS, for Thyroid Imaging, Reporting and Data System. In 2012, the ACR convened committees to (1) provide recommendations for reporting incidental thyroid nodules, (2) develop a set of standard terms (lexicon) for ultrasound reporting, and (3) propose a TI-RADS on the basis of the lexicon. The committees published the results of the first two efforts in 2015. In this article, the authors present the ACR TI-RADS Committee's recommendations, which provide guidance regarding management of thyroid nodules on the basis of their ultrasound appearance. The authors also describe the committee's future directions.
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Affiliation(s)
- Franklin N Tessler
- Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama.
| | - William D Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Missouri
| | - Edward G Grant
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Jenny K Hoang
- Department of Radiology, Duke University School of Medicine, Durham, North Carolina
| | - Lincoln L Berland
- Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Sharlene A Teefey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Missouri
| | - John J Cronan
- Department of Diagnostic Imaging Brown University, Providence, Rhode Island
| | - Michael D Beland
- Department of Diagnostic Imaging Brown University, Providence, Rhode Island
| | - Terry S Desser
- Department of Radiology, Stanford University Medical Center, Stanford, California
| | - Mary C Frates
- Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Lynwood W Hammers
- Hammers Healthcare Imaging, New Haven, Connecticut; Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Ulrike M Hamper
- Department of Radiology and Radiological Science, Johns Hopkins University, School of Medicine, Baltimore, Maryland
| | - Jill E Langer
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Carl C Reading
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Leslie M Scoutt
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, Connecticut
| | - A Thomas Stavros
- Department of Radiology, University of Texas Health Sciences Center, San Antonio, Texas
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12
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Hahn LD, Kunder CA, Chen MM, Orloff LA, Desser TS. Indolent thyroid cancer: knowns and unknowns. CANCERS OF THE HEAD & NECK 2017. [PMID: 31093348 DOI: 10.1186/s411990160021-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Thyroid cancer incidence is rapidly increasing due to increased detection and diagnosis of indolent thyroid cancer, i.e. cancer that is likely to be clinically insignificant. Clinical, radiologic, and pathologic features predicting indolent behavior of thyroid cancer are still largely unknown and unstudied. Existing clinicopathologic staging systems are useful for providing prognosis in the context of treated thyroid cancer but are not designed for and are inadequate for predicting indolent behavior. Ultrasound studies have primarily focused on discrimination between malignant and benign nodules; some studies show promising data on using sonographic features for predicting indolence but are still in their early stages. Similarly, molecular studies are being developed to better characterize thyroid cancer and improve the yield of fine needle aspiration biopsy, but definite markers of indolent thyroid cancer have yet to be identified. Nonetheless, active surveillance has been introduced as an alternative to surgery in the case of indolent thyroid microcarcinoma, and protocols for safe surveillance are in development. As increased detection of thyroid cancer is all but inevitable, increased research on predicting indolent behavior is needed to avoid an epidemic of overtreatment.
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Affiliation(s)
- Lewis D Hahn
- 1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H-1307, Mail code 5621, Stanford, CA 94305 USA
| | - Christian A Kunder
- 2Department of Pathology, Stanford University School of Medicine, Stanford, USA
| | - Michelle M Chen
- 3Department of Otolaryngology, Stanford University School of Medicine, Stanford, USA
| | - Lisa A Orloff
- 3Department of Otolaryngology, Stanford University School of Medicine, Stanford, USA
| | - Terry S Desser
- 1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H-1307, Mail code 5621, Stanford, CA 94305 USA
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Hahn LD, Kunder CA, Chen MM, Orloff LA, Desser TS. Indolent thyroid cancer: knowns and unknowns. CANCERS OF THE HEAD & NECK 2017; 2:1. [PMID: 31093348 PMCID: PMC6460732 DOI: 10.1186/s41199-016-0021-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/21/2016] [Indexed: 01/21/2023]
Abstract
Thyroid cancer incidence is rapidly increasing due to increased detection and diagnosis of indolent thyroid cancer, i.e. cancer that is likely to be clinically insignificant. Clinical, radiologic, and pathologic features predicting indolent behavior of thyroid cancer are still largely unknown and unstudied. Existing clinicopathologic staging systems are useful for providing prognosis in the context of treated thyroid cancer but are not designed for and are inadequate for predicting indolent behavior. Ultrasound studies have primarily focused on discrimination between malignant and benign nodules; some studies show promising data on using sonographic features for predicting indolence but are still in their early stages. Similarly, molecular studies are being developed to better characterize thyroid cancer and improve the yield of fine needle aspiration biopsy, but definite markers of indolent thyroid cancer have yet to be identified. Nonetheless, active surveillance has been introduced as an alternative to surgery in the case of indolent thyroid microcarcinoma, and protocols for safe surveillance are in development. As increased detection of thyroid cancer is all but inevitable, increased research on predicting indolent behavior is needed to avoid an epidemic of overtreatment.
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Affiliation(s)
- Lewis D Hahn
- 1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H-1307, Mail code 5621, Stanford, CA 94305 USA
| | - Christian A Kunder
- 2Department of Pathology, Stanford University School of Medicine, Stanford, USA
| | - Michelle M Chen
- 3Department of Otolaryngology, Stanford University School of Medicine, Stanford, USA
| | - Lisa A Orloff
- 3Department of Otolaryngology, Stanford University School of Medicine, Stanford, USA
| | - Terry S Desser
- 1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H-1307, Mail code 5621, Stanford, CA 94305 USA
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JOURNAL CLUB: Retrospective Evaluation of Ultrasound Features of Thyroid Nodules to Assess Malignancy Risk: A Step Toward TIRADS. AJR Am J Roentgenol 2016; 207:460-9. [DOI: 10.2214/ajr.15.15121] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Valluru KS, Wilson KE, Willmann JK. Photoacoustic Imaging in Oncology: Translational Preclinical and Early Clinical Experience. Radiology 2016; 280:332-49. [PMID: 27429141 PMCID: PMC4976462 DOI: 10.1148/radiol.16151414] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photoacoustic imaging has evolved into a clinically translatable platform with the potential to complement existing imaging techniques for the management of cancer, including detection, characterization, prognosis, and treatment monitoring. In photoacoustic imaging, tissue is optically excited to produce ultrasonographic images that represent a spatial map of optical absorption of endogenous constituents such as hemoglobin, fat, melanin, and water or exogenous contrast agents such as dyes and nanoparticles. It can therefore provide functional and molecular information that allows noninvasive soft-tissue characterization. Photoacoustic imaging has matured over the years and is currently being translated into the clinic with various clinical studies underway. In this review, the current state of photoacoustic imaging is presented, including techniques and instrumentation, followed by a discussion of potential clinical applications of this technique for the detection and management of cancer. (©) RSNA, 2016.
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Affiliation(s)
- Keerthi S. Valluru
- From the Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Dr, Room H1307, Stanford, CA 94305-5621
| | - Katheryne E. Wilson
- From the Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Dr, Room H1307, Stanford, CA 94305-5621
| | - Jürgen K. Willmann
- From the Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Dr, Room H1307, Stanford, CA 94305-5621
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Rosario PW. Indications for fine-needle aspiration in spongiform thyroid nodules. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2015; 59:474-5. [PMID: 26537411 DOI: 10.1590/2359-3997000000112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 12/08/2014] [Indexed: 11/21/2022]
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17
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Kim JY, Jung SL, Kim MK, Kim TJ, Byun JY. Differentiation of benign and malignant thyroid nodules based on the proportion of sponge-like areas on ultrasonography: imaging-pathologic correlation. Ultrasonography 2015; 34:304-11. [PMID: 26006056 PMCID: PMC4603205 DOI: 10.14366/usg.15016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 04/22/2015] [Accepted: 04/23/2015] [Indexed: 11/04/2022] Open
Abstract
Purpose: The purpose of this study was to determine whether it is possible to differentiate benign from malignant thyroid nodules according to the proportion of sponge-like appearance within the nodules. Methods: A total of 201 thyroid nodules containing sponge-like appearance from 195 patients (157 women and 38 men) were included this study. Each thyroid nodule was classified into one of three grades by real-time ultrasonography (US) based on the areas with a sponge-like appearance within nodule: grade I had sponge-like areas occupying <50%; grade II, between 50% and 75%; and grade III, >75%. We evaluated whether a correlation existed between these grades and cytopathologic diagnoses. Results: Of the 201 nodules, 196 were benign and five were malignant, and according to the US classification, 101 nodules were grade I, 45 were grade II, and 55 were grade III. Of the five malignant nodules, four were grade I, and one was grade II. No statistically significant difference was found in the rate of malignancy between grade III and grades I and II, due to insufficient statistical power. A sponge-like appearance was correlated with follicles filled with colloid and cholesterol granules in benign nodules and with papillary fronds around the dilated cystic spaces in malignant nodules. Conclusion: No malignancies were found in thyroid nodules with >75% sponge-like appearance. Due to the overall low incidence of malignancy and the limited number of patients, a statistically significant difference could not be found in the prevalence of malignancy depending on the proportion of sponge-like areas within the nodule.
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Affiliation(s)
- Jee Young Kim
- Department of Radiology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - So Lyung Jung
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - Mee Kyung Kim
- Departments of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - Tae-Jung Kim
- Department of Hospital Pathology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - Jae Young Byun
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University, Seoul, Korea
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Durfee SM, Benson CB, Arthaud DM, Alexander EK, Frates MC. Sonographic appearance of thyroid cancer in patients with Hashimoto thyroiditis. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2015; 34:697-704. [PMID: 25792586 DOI: 10.7863/ultra.34.4.697] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To determine whether the sonographic appearance of thyroid cancer differs in patients with and without Hashimoto thyroiditis. METHODS Patients with histologically proven thyroid cancer who had thyroid peroxidase (TPO) antibodies measured and sonography performed preoperatively were included. We evaluated each nodule for size, echogenicity, composition, margins, halo, and vascularity and evaluated the background heterogeneity of the gland. RESULTS There were 162 thyroid cancers in 145 patients. Forty-two patients (29.0%) had Hashimoto thyroiditis with positive TPO antibodies, and 103 patients (71.0%) had negative TPO antibodies. The background echogenicity was more often heterogeneous in TPO antibody-positive patients compared to those who had negative TPO antibodies (57.1% versus 26.2%; P= .0005). Comparing cancers in TPO antibody-positive to TPO antibody-negative patients, there was no significant difference in the size, echogenicity, composition, margins, halo presence, calcification presence and type, or vascularity of the cancerous nodule (P > .05). Among TPO antibody-positive patients, comparing thyroid cancerous nodules in patients with heterogeneous glands to those with homogeneous glands, there was no significant difference in any sonographic characteristic except the margin of the nodule, which was more often irregular or poorly defined in heterogeneous glands and more often smooth in homogeneous glands (P< .05). CONCLUSIONS Sonographic features of thyroid cancer are similar in patients with and without Hashimoto thyroiditis. Among patients with Hashimoto thyroiditis and thyroid cancer, the sonographic appearance of the cancerous nodule is similar, except that cancerous nodule margins are more likely to be irregular or poorly defined when the gland is heterogeneous.
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Affiliation(s)
- Sara M Durfee
- Department of Radiology (S.M.D., C.B.B., M.C.F.) and Department of Medicine, Thyroid Section, Division of Endocrinology, Hypertension, and Diabetes (D.M.A., E.K.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts USA.
| | - Carol B Benson
- Department of Radiology (S.M.D., C.B.B., M.C.F.) and Department of Medicine, Thyroid Section, Division of Endocrinology, Hypertension, and Diabetes (D.M.A., E.K.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Dylan M Arthaud
- Department of Radiology (S.M.D., C.B.B., M.C.F.) and Department of Medicine, Thyroid Section, Division of Endocrinology, Hypertension, and Diabetes (D.M.A., E.K.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Erik K Alexander
- Department of Radiology (S.M.D., C.B.B., M.C.F.) and Department of Medicine, Thyroid Section, Division of Endocrinology, Hypertension, and Diabetes (D.M.A., E.K.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Mary C Frates
- Department of Radiology (S.M.D., C.B.B., M.C.F.) and Department of Medicine, Thyroid Section, Division of Endocrinology, Hypertension, and Diabetes (D.M.A., E.K.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts USA
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Wang K, Yang Y, Wu Y, Chen J, Zhang D, Liu C. The association of menstrual and reproductive factors with thyroid nodules in Chinese women older than 40 years of age. Endocrine 2015; 48:603-14. [PMID: 25012252 DOI: 10.1007/s12020-014-0342-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
Abstract
The purpose of the study was to explore the association of menstrual and reproductive factors with thyroid nodules in Chinese women older than 40 years of age. A questionnaire was completed by 6,571 women aged 40 years or older in a community-based epidemiological investigation of thyroid nodules conducted from June to November 2011 in Nanjing City. Thyroid nodules were measured by ultrasound. The Thyroid Imaging Reporting and Data System score was used to differentiate between benign and possibly malignant nodules. Menopausal age (>55 vs. <50 years: RR = 1.17, 95 % CI 1.00-1.34) and number of reproductive years (>40 vs. <35 years: RR = 1.12, 95 % CI 1.01-1.24) increased the risk of thyroid nodules, but were not associated with suspected malignant nodules. Women who experienced more pregnancies (≥5 vs. ≤1: RR = 2.09, 95 % CI 1.79-2.40) and abortions (≥3 vs. 0: RR = 1.61, 95 % CI 1.41-1.81) were prone to development of thyroid nodules, and more likely to form suspected malignant nodules (pregnancies, RR = 3.59, 95 % CI 1.60-7.20; abortions, RR = 2.36, 95 % CI 1.31-4.06). Furthermore, higher risks of thyroid nodules (RR = 1.36, 95 % CI 1.14-1.59) and suspected malignant nodules (RR = 2.80, 95 % CI 1.08-6.53) were observed in women who had undergone artificial compared with natural abortion. Periods of elevated estrogen and progesterone levels in women, such as pregnancy, were the key occasions for occurrence of both benign and suspiciously malignant thyroid nodules, while longer lifetime length of exposure to female sex hormones might promote the growth of thyroid nodules.
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Affiliation(s)
- Kun Wang
- Department of Endocrinology, The First Clinical College, Nanjing University of Chinese Medicine, Jiangsu Province Hospital on Integration of Chinese and Western Medicine, 138 Xianlin Dadao Road, Nanjing, 210023, China
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Fernández Sánchez J. Clasificación TI-RADS de los nódulos tiroideos en base a una escala de puntuación modificada con respecto a los criterios ecográficos de malignidad. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.rard.2014.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Patel BN, Kamaya A, Desser TS. Pitfalls in sonographic evaluation of thyroid abnormalities. Semin Ultrasound CT MR 2014; 34:226-35. [PMID: 23768889 DOI: 10.1053/j.sult.2012.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Ultrasound of the thyroid has become increasingly common, with evaluation of thyroid nodules representing the main indication for its use. While detection of thyroid nodules with modern high-resolution sonographic equipment is generally not a challenge, pitfalls may occur by which normal structures or pathology in neighboring organs are mistaken for thyroid nodules. Numerous reports in the literature describe various sonographic features of nodules in an attempt to stratify lesions into benign or malignant categories. While neither nodule size nor number is reliable, echogenicity, microcalcifcation, shape, and composition have been reported to be helpful in classifying thyroid nodules. No single feature should be used in isolation, and consensus guidelines have been established as to when fine-needle aspiration is indicated. Pitfalls remain in the evaluation of thyroid nodules demonstrating atypical features, such as cystic papillary carcinomas. Focal presentation of typically diffuse processes, such as Graves' disease and Hashimoto thyroiditis, may mimic malignant nodules, but carcinomas occur in these settings as well as in a background of normal thyroid parenchyma. Finally, because ultrasound is commonly used for surveillance of patients with thyroid carcinoma after thyroidectomy, sonographers should be familiar with the ultrasound appearance of disease recurrence and its mimics.
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Affiliation(s)
- Bhavik N Patel
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
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Mahony GT, Mahony BS. Low nondiagnostic rate for fine-needle capillary sampling biopsy of thyroid nodules: a singular experience. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2013; 32:2155-2161. [PMID: 24277898 DOI: 10.7863/ultra.32.12.2155] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES This study examined the hypothesis that sonographically guided fine-needle capillary thyroid biopsies performed by an experienced operator and with constant technique on nodules that meet the Society of Radiologists in Ultrasound criteria warranting biopsy can result in a nondiagnostic rate that is significantly lower than prior published reports. METHODS We retrospectively reviewed the sonographic and pathologic reports from 228 consecutive sonographically guided fine-needle capillary thyroid biopsies performed during a 3-year interval by a single operator with more than 15 years of experience performing fine-needle capillary thyroid biopsies. There were no exclusion criteria. Sonographic and pathologic reports from all nodules biopsied were included in the analysis. The radiologist's protocol included 6 fine-needle capillary biopsies, each with 20 passes of the needle into the periphery and/or solid components of the nodule. The cytologic specimens were reviewed off-site in adherence with the Bethesda system for reporting thyroid cytopathologic findings and classified as diagnostic or nondiagnostic. The nondiagnostic rate in this study was compared with the nondiagnostic rates in prior published reports. RESULTS Among the 228 fine-needle capillary thyroid biopsies performed during the study interval, cytologic analysis showed 1 nondiagnostic biopsy, yielding a nondiagnostic rate of 0.4%. This rate was significantly lower than previously published reports (P < .001). CONCLUSIONS Sonographically guided fine-needle capillary biopsies of the thyroid performed by an experienced radiologist can result in a nondiagnostic rate of less than 1%. This finding warrants further investigation into the reasons for the discrepancy between the results of this study and other previous reports.
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Affiliation(s)
- Gregory T Mahony
- BA, current address: Hospital for Special Surgery, 535 E 70th St, New York, NY 10021 USA.
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Russ G, Royer B, Bigorgne C, Rouxel A, Bienvenu-Perrard M, Leenhardt L. Prospective evaluation of thyroid imaging reporting and data system on 4550 nodules with and without elastography. Eur J Endocrinol 2013; 168:649-55. [PMID: 23416955 DOI: 10.1530/eje-12-0936] [Citation(s) in RCA: 229] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To evaluate prospectively the diagnostic accuracy of the thyroid imaging reporting and data system (TI-RADS) and its interobserver agreement and to estimate the reduction of indications of fine-needle aspiration biopsies (FNABs). DESIGN A prospective comparative study was designed. METHODS In 2 years, 4550 nodules in 3543 patients were prospectively scored using a flowchart and a six-point scale and then submitted to US-FNAB. Results were read according to the Bethesda system. Histopathological results were available for 263 cases after surgery. Sensitivity, specificity, negative predictive value (NPV) and positive predictive value, and accuracy were calculated for the gray-scale score, elastography, and a combination of both methods. Interobserver agreement was calculated using the kappa statistic. The reduction in the number of FNABs was estimated. RESULTS When compared with cytopathological results, sensitivity, specificity, NPV, and accuracy were 95.7, 61, 99.7, and 62% for the TI-RADS gray-scale score; 74.2, 91.1, 98, and 90% for elastography; and 98.5, 44.7, 99.8, and 48.3% for a combination of both methods respectively. When compared with histopathological results, the sensitivity of the gray-scale score, elastography, and a combination of both methods were 93.2, 41.9, and 96.7% respectively. Interobserver agreement for the six-point scale and the recommendation for biopsy were substantial (κ value=0.72 and 0.76 respectively). The reduction in the number of FNABs was estimated to be 33.8%. CONCLUSION The TI-RADS score has high sensitivity and NPV for the diagnosis of thyroid carcinoma. A hard nodule should always be considered as suspicious for malignancy but elastography cannot be used alone. Combination of elastography with gray-scale can be used to improve sensitivity or specificity. Interobserver agreement and decrease in unnecessary biopsies are significant.
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Affiliation(s)
- Gilles Russ
- Centre of Pathology and Radiology, 14 Avenue René Coty, 75014 Paris, France.
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Yildirim D, Gurses B, Gurpinar B, Ekci B, Colakoglu B, Kaur A. Nodule or pseudonodule? Differentiation in Hashimoto's thyroiditis with sonoelastography. J Int Med Res 2012; 39:2360-9. [PMID: 22289555 DOI: 10.1177/147323001103900636] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Fine needle aspiration biopsy (FNAB) is the gold standard for the diagnosis of lymphoma in Hashimoto's thyroiditis and is able to differentiate between benign, inflammatory or malignant nodules, classifying them as either true nodules or pseudonodules. This technique is, however, invasive. The present study aimed to differentiate pseudonodules from true nodules by sonoelastography, a non-invasive technique, in 54 patients with Hashimoto's thyroiditis. The accuracy of sonoelastography to differentiate between true or pseudonodules was compared with the gold standard FNAB and with grey scale ultrasonography. The nodules were categorized into three groups: non-demarcated hypoechogenic, demarcated hyperecho genic, and demarcated hypoechogenic. Sono elastography findings were concordant with the cytopathological results and demonstrated that sono elastography was able to detect true thyroid nodules often misdiagnosed by conventional grey scale ultrasonography. Sonoelastography was found to have increased sensitivity for true nodule diagnosis compared with conventional grey scale ultrasonography and may eliminate unnecessary FNABs being carried out.
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Affiliation(s)
- D Yildirim
- Department of Radiology, Iskenderun Military Hospital, Iskenderun, 31200 Antakya, Turkey.
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"Focal thyroid inferno" on color Doppler ultrasonography: a specific feature of focal Hashimoto's thyroiditis. Eur J Radiol 2012; 81:3319-25. [PMID: 22608398 DOI: 10.1016/j.ejrad.2012.04.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/19/2012] [Accepted: 04/23/2012] [Indexed: 11/21/2022]
Abstract
PURPOSE To evaluate color-Doppler features predictive of focal Hashimoto's thyroiditis. MATERIALS AND METHODS A total of 521 patients with 561 thyroid nodules that underwent surgeries or gun biopsies were included in this study. These nodules were divided into three groups: focal Hashimoto's thyroiditis (104 nodules in 101 patients), benignity other than focal Hashimoto's thyroiditis (73 nodules in 70 patients), and malignancy (358 nodules in 350 patients). On color Doppler sonography, four vascularity types were determined as: hypovascularity, marked internal flow, marked peripheral flow and focal thyroid inferno. The χ2 test was performed to seek the potential vascularity type with the predictive ability of certain thyroid pathology. Furthermore, the gray-scale features of each nodule were also studied. RESULTS The vascularity type I (hypovascularity) was more often seen in focal Hashimoto's thyroiditis than other benignity and malignancy (46% vs. 20.5% and 19%). While the type II (marked internal flow) showed the opposite tendency (26.9% [focal Hashimoto's thyroiditis] vs. 45.2% [other benignity] and 52.8% [malignancy]). However, type III (marked peripheral flow) was unable to predict any thyroid pathology. Importantly, type IV (focal thyroid inferno) was exclusive to focal Hashimoto's thyroiditis. All 8 type IV nodules appeared to be solid, hypoechoic, and well-defined. Using "focal thyroid inferno" as an indicator of FHT, the diagnostic sensitivity and specificity were 7.7% and 100% respectively. CONCLUSIONS The vascularity type of "focal thyroid inferno" is specific for focal Hashimoto thyroiditis. Recognition of this particular feature may avoid unnecessary interventional procedures for some solid hypoechoic thyroid nodules suspicious of malignancy.
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