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Garg M, Khandelwal D, Aggarwal V, Raja KB, Kalra S, Agarwal B, Dutta D. Ultrasound Elastography is a Useful Adjunct to Conventional Ultrasonography and Needle Aspiration in Preoperative Prediction of Malignancy in Thyroid Nodules: A Northern India Perspective. Indian J Endocrinol Metab 2018; 22:589-596. [PMID: 30294565 PMCID: PMC6166563 DOI: 10.4103/ijem.ijem_634_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Data on ultrasound elastography (USE) are scant from India. This study aimed to compare the sensitivity and specificity of USE with thyroid ultrasonography (USG) and fine-needle aspiration (FNA) as preoperative predictor of malignancy, using postoperative histopathology as gold standard. MATERIALS AND METHODS Consecutive patients with thyroid swelling/goiter underwent thyroid USG followed by USE. Patients with pure cystic nodules or eggshell calcification were excluded. Patients with nodules >10 mm with one or more high-risk USG features underwent FNA. Patients with no USG high-risk features, benign score on USE, and benign FNA were conservatively followed. All other patients underwent thyroidectomy. RESULTS 246 consecutive patients underwent USG. Data from 97 patients (117 nodules) were analyzed. Median age of patients was 43 years with 85.4% females. All patients with USE score-1 had benign USG and FNA characteristics. Of 86 nodules having USE score-2, 18.6% nodules were hypoechoic and 16.28% had microcalcification. Hypoechogenicity and microcalcifications were observed in 66.67% nodules with USE score-3. All nodules with USE score-4 and 5 were hypoechoic and had microcalcifications. Histopathology was benign in 84 and malignant in 33 patients. Occurrence of malignancy in USE scores 1-5 was 0, 4.65, 100, 90.5, and 100%, respectively. All eight nodules with diagnosis of follicular adenoma had preoperative USE score-2. The sensitivity of preoperative USG, USE, and FNA in picking up malignancy was 66.67, 87.88, and 69.70%, respectively. Specificity of USG, USE, and FNA in detecting thyroid malignancy was 88.10, 100, and 97.6%, respectively. False positivity rates for USG, USE, and FNA in diagnosing thyroid malignancy was 11.9, 0, and 2.4%, respectively. The overall diagnostic accuracy of USG, USE, and FNA cytology in this study was 82.05, 96.58, and 89.74%, respectively. CONCLUSION USE may be better than USG for preoperative detection of malignancy in thyroid nodules.
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Affiliation(s)
- Monika Garg
- Department of Radiology, Maharaj Agrasen Hospital, Punjabi Bagh, New Delhi, India
| | - Deepak Khandelwal
- Department of Endocrinology, Maharaj Agrasen Hospital, Punjabi Bagh, New Delhi, India
| | - Vivek Aggarwal
- Department of Endocrine Surgery, Maharaj Agrasen Hospital, Punjabi Bagh, New Delhi, India
| | - Kiran B. Raja
- Department of Endocrine Surgery, Maharaj Agrasen Hospital, Punjabi Bagh, New Delhi, India
| | - Sanjay Kalra
- Department of Endocrinology, Bharti Hospital, Karnal, Haryana, India
| | - Bhoopendra Agarwal
- Department of Surgery, Maharaj Agrasen Hospital, Punjabi Bagh, New Delhi, India
| | - Deep Dutta
- Department of Endocrinology, Diabetology and Metabolic Disorders, Venkateshwar Hospital, New Delhi, India
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Colakoglu B, Yildirim D, Alis D, Ucar G, Samanci C, Ustabasioglu FE, Bakir A, Ulusoy OL. Elastography in Distinguishing Benign from Malignant Thyroid Nodules. J Clin Imaging Sci 2016; 6:51. [PMID: 28123841 PMCID: PMC5209857 DOI: 10.4103/2156-7514.197074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 11/30/2016] [Indexed: 11/04/2022] Open
Abstract
AIM The aim of this study is to test the diagnostic success of strain elastography in distinguishing benign from malignant thyroid nodules. MATERIALS AND METHODS The size, echogenicity, and halo integrity of 293 thyroid nodules and the presence of microcalcification in these nodules were evaluated on gray-scale examination. Doppler characteristics and elastography patterns were also evaluated and recorded. Nodules were classified in four categories (patterns 1-4) based on elastographic examination. RESULTS According to the cytopathological findings, 222 nodules were benign, and 71 nodules were malignant. The risk of a nodule to be malignant was 3.8 times increased by hypoechogenicity, 7.7 times increased by the presence of microcalcification, and 11.5 times increased by the absence of halo. On Doppler patterns, the presence of central vascularity increased the malignancy risk of a nodule by 5.8 times. According to the receiver operating characteristic analysis, patterns 3 and 4 were malignant, and patterns 1 and 2 were benign. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of elastography were 100%, 80.2%, 61.7%, 100%, and 85%, respectively. CONCLUSION Strain elastography can be used as a noninvasive method in distinguishing benign from malignant thyroid nodules and in identifying the patients who would undergo surgery.
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Affiliation(s)
- Bulent Colakoglu
- Department of Radiology, Vehbi Koç Foundation American Hospital, Istanbul, Turkey
| | - Duzgun Yildirim
- Department of Radiology, Acıbadem Taksim Hospital, Istanbul, Turkey
| | - Deniz Alis
- Department of Radiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Gokhan Ucar
- Department of Radiology, Vehbi Koç Foundation American Hospital, Istanbul, Turkey
| | - Cesur Samanci
- Department of Radiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | | | - Alev Bakir
- Department of Biostatistics, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Onur Levent Ulusoy
- Department of Radiology, Florence Nightingale Hospital, Istanbul, Turkey
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Wei Y, Zhou X, Liu S, Wang H, Liu L, Liu R, Kang J, Hong K, Wang D, Yuan G. Novel and Practical Scoring Systems for the Diagnosis of Thyroid Nodules. PLoS One 2016; 11:e0163039. [PMID: 27654865 PMCID: PMC5031406 DOI: 10.1371/journal.pone.0163039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 09/01/2016] [Indexed: 01/04/2023] Open
Abstract
Objective The clinical management of patients with thyroid nodules that are biopsied by fine-needle aspiration cytology and yield indeterminate results remains unsettled. The BRAF V600E mutation has dubious diagnostic value due to its low sensitivity. Novel strategies are urgently needed to distinguish thyroid malignancies from thyroid nodules. Design This prospective study included 504 thyroid nodules diagnosed by ultrasonography from 468 patients, and fine-needle aspiration cytology was performed under ultrasound guidance. Cytology and molecular analysis, including BRAF V600E, RET/PTC1 and RET/PTC3, were conducted simultaneously. The cytology, ultrasonography results, and mutational status were gathered and analyzed together. Predictive scoring systems were designed using a combination of diagnostic parameters for ultrasonography, cytology and genetic analysis. The utility of the scoring systems was analyzed and compared to detection using the individual methods alone or combined. Result The sensitivity of scoring systema (ultrasonography, cytology, BRAF V600E, RET/PTC) was nearly identical to that of scoring systemb (ultrasonography, cytology, BRAF V600E); these were 91.0% and 90.2%, respectively. These sensitivities were significantly higher than those obtained using FNAC, genetic analysis and US alone or combined; their sensitivities were 63.9%, 70.7% and 87.2%, respectively. Scoring systemc (ultrasonography, cytology) was slightly inferior to the former two scoring systems but still had relatively high sensitivity and specificity (80.5% and 95.1%, respectively), which were significantly superior to those of single cytology, ultrasonography or genetic analysis. In nodules with uncertainty cytology, scoring systema, scoring systemb and scoring systemc could elevate the malignancy detection rates to 69.7%, 69.7% and 63.6%, respectively. Conclusion These three scoring systems were quick for clinicians to master and could provide quantified information to predict the probability of malignant nodules. Scoring systemb is recommended for improving the detection rate among nodules of uncertain cytology.
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Affiliation(s)
- Ying Wei
- Department of Internal Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xinrong Zhou
- Department of Internal Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Siyue Liu
- Department of Internal Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hong Wang
- Molecular Diagnostic Laboratory, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Limin Liu
- Department of surgical cytology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Renze Liu
- Department of surgical cytology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jinsong Kang
- Department of surgical cytology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kai Hong
- Department of ultrasonic, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Daowen Wang
- Department of Internal Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Molecular Diagnostic Laboratory, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Gang Yuan
- Department of Internal Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Singh Ospina N, Brito JP, Maraka S, Espinosa de Ycaza AE, Rodriguez-Gutierrez R, Gionfriddo MR, Castaneda-Guarderas A, Benkhadra K, Al Nofal A, Erwin P, Morris JC, Castro MR, Montori VM. Diagnostic accuracy of ultrasound-guided fine needle aspiration biopsy for thyroid malignancy: systematic review and meta-analysis. Endocrine 2016; 53:651-61. [PMID: 27071659 DOI: 10.1007/s12020-016-0921-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 03/09/2016] [Indexed: 12/30/2022]
Abstract
PURPOSE To systematically appraise and summarize the available evidence about the diagnostic accuracy of ultrasound-guided fine needle aspiration biopsy (USFNA) for thyroid malignancy, and to explore the integration of these estimates with the probability of thyroid malignancy before USFNA. METHODS A comprehensive search of multiple databases from each database's inception to August 2014 was performed. Eligible studies included those that evaluated patients with thyroid nodules who underwent USFNA and subsequent evaluation by histopathology or long-term follow-up. RESULTS We identified 32 studies at moderate risk of bias evaluating the USFNA diagnostic characteristics for the diagnosis of thyroid malignancy. Results were imprecise and inconsistent across trials. The pooled likelihood ratio (LR) of thyroid malignancy for a benign USFNA result was 0.09 (95 % CI 0.06, 0.14; I (2) = 33 %), whereas the pooled LR for a malignant result was 197 (95 % CI, 68, 569; I (2) = 77 %). In the case of a suspicious for follicular neoplasm result, the pooled LR for malignancy was 0.6 (95 % CI, 0.4, 1.0; I (2) = 84 %) and 8.3 (95 % CI, 3.6, 19.2; I (2) = 89) for a result of suspicious for malignancy. CONCLUSION The available evidence regarding the diagnostic accuracy of USFNA warrants only limited confidence due to risk of bias, imprecision, and inconsistency. However, some USFNA results (benign, malignant) are likely very helpful, by significantly changing the pre-test probability of thyroid cancer.
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Affiliation(s)
- Naykky Singh Ospina
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Juan P Brito
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Spyridoula Maraka
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Ana E Espinosa de Ycaza
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Rene Rodriguez-Gutierrez
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Michael R Gionfriddo
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Mayo Graduate School, Mayo Clinic, Rochester, MN, USA
| | - Ana Castaneda-Guarderas
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Emergency Medicine, Mayo Clinic, Rochester, MN, USA
| | - Khalid Benkhadra
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Evidence-Based Practice Research Program, Mayo Clinic, Rochester, MN, USA
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - Alaa Al Nofal
- Division of Pediatric Endocrinology, Mayo Clinic, Rochester, MN, USA
| | | | - John C Morris
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - M Regina Castro
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Victor M Montori
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA.
- Knowledge and Evaluation Research Unit, Division of Diabetes, Metabolism and Nutrition, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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Nell S, Kist JW, Debray TPA, de Keizer B, van Oostenbrugge TJ, Borel Rinkes IHM, Valk GD, Vriens MR. Qualitative elastography can replace thyroid nodule fine-needle aspiration in patients with soft thyroid nodules. A systematic review and meta-analysis. Eur J Radiol 2015; 84:652-61. [PMID: 25638577 DOI: 10.1016/j.ejrad.2015.01.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 12/31/2014] [Accepted: 01/05/2015] [Indexed: 12/18/2022]
Abstract
CONTEXT Only a minority of thyroid nodules is malignant; nevertheless, many invasive diagnostic procedures are performed to distinguish between benign and malignant nodules. Qualitative ultrasound elastography is a non-invasive technique to evaluate thyroid nodules. OBJECTIVE To investigate the diagnostic value of qualitative elastography in distinguishing benign from malignant thyroid nodules in patients referred for fine-needle aspiration (FNA). DATA SOURCES A systematic literature search (PubMed, Embase and Cochrane Library) was performed. STUDY SELECTION Included studies reported thyroid nodule elastography color scores and the related cytologic or histologic findings in patients with a thyroid nodule referred for FNA. DATA EXTRACTION Two independent reviewers extracted study data and assessed study quality. Pooled sensitivities and specificities of different populations were calculated using a bivariate Bayesian framework. DATA SYNTHESIS Twenty studies including thyroid nodules were analyzed. Pooled results of elastography indicate a summary sensitivity of 85% (95% confidence interval [CI], 79-90%) and specificity of 80% (95% CI, 73-86%). The respective pooled negative predictive and positive predictive values were 97% (95% CI, 94-98%) and 40% (95% CI, 34-48%). The pretest probability of a benign nodule was 82%. Only 3.7% of the false-negative nodules was a follicular thyroid carcinoma. A pooled negative predictive value of 99% (95% CI, 97-100%) was found when only complete soft nodules (Asteria elastography 1) were classified as benign, which included 14% of the studied population. CONCLUSIONS Elastography has a fair specificity and sensitivity for diagnostic accuracy. Its major strength entails the detection of benignity, especially when only completely soft nodules are qualified as benign. The outcomes of our analysis show that FNA could safely be omitted in patients referred for analysis of their thyroid nodule when elastography shows it to be completely soft (Asteria elastography 1). This could prevent unnecessary invasive diagnostic procedures in a substantial portion of patients.
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Affiliation(s)
- Sjoerd Nell
- Department of Surgery, University Medical Center Utrecht, The Netherlands
| | - Jakob W Kist
- Department of Surgery, University Medical Center Utrecht, The Netherlands
| | - Thomas P A Debray
- Julius Center for Health Sciences and Primary Care Utrecht, The Netherlands
| | - Bart de Keizer
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, The Netherlands
| | | | | | - Gerlof D Valk
- Department of Endocrinology, University Medical Center Utrecht, The Netherlands
| | - Menno R Vriens
- Department of Surgery, University Medical Center Utrecht, The Netherlands.
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Giusti M, Campomenosi C, Gay S, Massa B, Silvestri E, Monti E, Turtulici G. The use of semi-quantitative ultrasound elastosonography in combination with conventional ultrasonography and contrast-enhanced ultrasonography in the assessment of malignancy risk of thyroid nodules with indeterminate cytology. Thyroid Res 2014; 7:9. [PMID: 25506397 PMCID: PMC4264546 DOI: 10.1186/s13044-014-0009-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 11/19/2014] [Indexed: 11/17/2022] Open
Abstract
Background The pre-surgical selection of thyroid nodules with indeterminate cytology (Thy 3 according to British Thyroid Association) after fine-needle aspiration biopsy (FNAB) is currently required in order to reduce unnecessary total thyroidectomy. The objective of our study was to use a surgical series of Thy 3 nodules to evaluate the predictive role of ultrasound elastosonography (USE) and contrast-enhanced ultrasonography (CEUS) in pre-surgical diagnoses of malignancy. Subjects and methods We enrolled 63 patients with Thy 3 nodules in which cytological–histological correlation was available. The ELX 2/1 strain index was obtained by means of semi-quantitative USE, which was performed before surgery in addition to conventional ultrasonography (US) and contrast-enhanced US (CEUS) on the Thy 3 nodules. The ELX 2/1 strain index, a five-item US score and both peak (P) index and time to peak (TTP) index from CEUS were correlated with the histological results. After surgical diagnosis, the data were analysed by using a receiver-operating characteristic (ROC) curve. Results Histology was benign in 50 and malignant in 13 Thy 3 nodules. No difference in maximal diameter was noted between benign (22.8 ± 1.6 mm) and malignant (18.9 ± 2.9 mm) nodules. Significant correlations were found between histology and cumulative US findings (p=0.005), ELX 2/1 index (p=0.002), P index (p=0.01) and TTP index (p=0.02). On analysing data from US, USE and CEUS, significant ROC areas under the curve were observed (p<0.0001). A cut-off value was set for US (>2), ELX 2/1 (>0.95), P index (<0.99) and TTP index (>0.98) scores. The diagnostic power of the cumulative pre-surgical analysis of Thy 3 nodules with US, USE and CEUS, considering the experimental cut-off points obtained from the ROC curves was: sensitivity 64%, specificity 92%, PPV 75% and accuracy 84%. Conclusion The ELX 2/1 index in conjunction with the US score can be useful in orienting surgical strategies in Thy 3 nodules. The information added by CEUS is less sensitive than that provided by US and USE. The use of a cut-off based on histology can reduce thyroidectomy. Observation should be the first choice when not all instrumental results are suspect.
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Affiliation(s)
- Massimo Giusti
- Endocrine Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy ; UO Clinica Endocrinologica, Viale Benedetto XV, 6, I-16100 Genoa, Italy
| | - Claudia Campomenosi
- Endocrine Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Stefano Gay
- Endocrine Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Barbara Massa
- Cytopathology and Pathology Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | | | - Eleonora Monti
- Endocrine Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
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Abstract
Among several ultrasound patterns, thyroid nodule hypoechogenicity, spot microcalcifications, and an absent halo sign are used for predicting increased risk of thyroid malignancy. The predictive value of ultrasound, however, increases at the expense of its sensitivity, and malignancy is predicted with high specificity only when multiple ultrasound features are simultaneously present. Ultrasound features are important in determining the strength of the indication for carrying out fine needle aspiration. To this end, a system for standardization of ultrasound features (Thyroid Imaging Reporting and Data System) aids in establishing risk of malignancy. Ultrasound elastosonography is a technique that assesses hardness as an indicator of malignancy risk. It has been carried out in selected studies of patients with thyroid nodules, and has been shown to have a high predictive value for malignancy, which is also maintained in cytologically indeterminate and non-diagnostic nodules. Although conventional ultrasound maintains its pivotal role in defining which nodules are candidates for ultrasound elastosonography characterization, the latter seems to have considerable potential in the diagnosis, or exclusion, of thyroid cancer. This especially concerns thyroid nodules with indeterminate cytology at fine-needle aspiration.
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Affiliation(s)
- Teresa Rago
- Department of Clinical and Experimental Medicine, Section of Endocrinology, University of Pisa, Italy
| | - Paolo Vitti
- Department of Clinical and Experimental Medicine, Section of Endocrinology, University of Pisa, Italy.
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Yoo WS, Choi HS, Cho SW, Moon JH, Kim KW, Park HJ, Park SY, Choi SI, Choi SH, Lim S, Yi KH, Park DJ, Jang HC, Park YJ. The role of ultrasound findings in the management of thyroid nodules with atypia or follicular lesions of undetermined significance. Clin Endocrinol (Oxf) 2014; 80:735-42. [PMID: 24117478 DOI: 10.1111/cen.12348] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 09/27/2013] [Accepted: 10/01/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Atypia or follicular lesions of undetermined significance (AUS/FLUS) is a broad cytological category in the Bethesda system for classifying thyroid cytology. This study investigated the diagnostic accuracy of ultrasound (US) analysis of thyroid nodules with AUS/FLUS. PATIENTS AND METHODS Of 5062 subjects with nodules subjected to fine-needle aspiration cytology (FNACs) at our institution from January 2010 through May 2012, 383 met the Bethesda criteria for AUS/FLUS. After excluding subjects who had a history of thyroid cancer, who only underwent repeat FNA or who underwent no further examinations, we selected 249 subjects who had subsequently undergone a core-needle biopsy and/or surgery. Of these, 100 were found to have malignant nodules (40·2%), 122 had benign nodules (49%), and 27 had nodules with indeterminate status (10·8%). We compared specific US parameters, including size, location, content, shape, margin, echogenicity, echotexture and calcification across these subject groups. RESULTS Multivariate analysis revealed that malignancy was associated with taller-than-wide shape (TDW) (OR = 8·43, P = 0·002), ill-defined margin (OR = 3·23, P = 0·002) and marked hypoechogenicity. (OR = 3·61, P = 0·001). The specificity and positive predictive values of TDW were 98% and 90·6%,respectively. The specificity and positive predictive values of 'TDW and marked hypoechogenicity' were both 100%. CONCLUSION US findings play a complementary role in the diagnosis of thyroid nodules with AUS/FLUS. In case of highly suspicious US findings such as 'TDW and marked hypoechogenicity', could be very helpful in the diagnosis of malignancy.
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Affiliation(s)
- Won Sang Yoo
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea; Department of Internal Medicine, Dankook University Hospital, Seoul, Korea
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Calò PG, Medas F, Santa Cruz R, Podda F, Erdas E, Pisano G, Nicolosi A. Follicular nodules (Thy3) of the thyroid: is total thyroidectomy the best option? BMC Surg 2014; 14:12. [PMID: 24597765 PMCID: PMC3946766 DOI: 10.1186/1471-2482-14-12] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 02/28/2014] [Indexed: 12/18/2022] Open
Abstract
Background Identification of the best management strategy for nodules with Thy3 cytology presents particular problems for clinicians. This study investigates the ability of clinical, cytological and sonographic data to predict malignancy in indeterminate nodules with the scope of determining the need for total thyroidectomy in these patients. Methods The study population consisted of 249 cases presenting indeterminate nodules (Thy3): 198 females (79.5%) and 51 males (20.5%) with a mean age of 52.43 ± 13.68 years. All patients underwent total thyroidectomy. Results Malignancy was diagnosed in 87/249 patients (34.9%); thyroiditis co-existed in 119/249 cases (47.79%) and was associated with cancer in 40 cases (40/87; 45.98%). Of the sonographic characteristics, only echogenicity and the presence of irregular margins were identified as being statistically significant predictors of malignancy. 52/162 benign lesions (32.1%) and 54/87 malignant were hypoechoic (62.07%); irregular margins were present in 13/162 benign lesions (8.02%), and in 60/87 malignant lesions (68.97%). None of the clinical or cytological features, on the other hand, including age, gender, nodule size, the presence of microcalcifications or type 3 vascularization, were significantly associated with malignancy. Conclusions The rate of malignancy in cytologically indeterminate lesions was high in the present study sample compared to other reported rates, and in a significant number of cases Hashimoto’s thyroiditis was also detected. Thus, considering the fact that clinical and cytological features were found to be inaccurate predictors of malignancy, it is our opinion that surgery should always be recommended. Moreover, total thyroidectomy is advisable, being the most suitable procedure in cases of multiple lesions, hyperplastic nodular goiter, or thyroiditis; the high incidence of malignancy and the unreliability of intraoperative frozen section examination also support this preference for total over hemi-thyroidectomy.
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Affiliation(s)
- Pietro Giorgio Calò
- Department of Surgical Sciences, University of Cagliari, S,S, 554, Bivio Sestu, 09042 Monserrato, (CA), Italy.
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Cantisani V, Ulisse S, Guaitoli E, De Vito C, Caruso R, Mocini R, D’Andrea V, Ascoli V, Antonaci A, Catalano C, Nardi F, Redler A, Ricci P, De Antoni E, Sorrenti S. Q-elastography in the presurgical diagnosis of thyroid nodules with indeterminate cytology. PLoS One 2012; 7:e50725. [PMID: 23209819 PMCID: PMC3510167 DOI: 10.1371/journal.pone.0050725] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 10/24/2012] [Indexed: 12/21/2022] Open
Abstract
Quantitative ultrasound (US) elastography (Q-USE), able to evaluate tissue stiffness has been indicated as a new diagnostic tool to differentiate benign from malignant thyroid lesions. Aim of this prospective study, conducted at the Department of Surgical Sciences, of the “Sapienza” University of Rome, was to evaluate the diagnostic accuracy of Q-USE, compared with US parameters, in thyroid nodules with indeterminate cytology (Thy3).The case study included 140 nodules from 140 consecutive patients. Patient’s thyroid nodules were evaluated by Q-USE, measuring the strain ratio (SR) of stiffness between nodular and surrounding normal thyroid tissue, and conventional US parameters prior fine-needle aspiration cytology. Those with Thy3 diagnosis were included in the study. Forty of the nodules analyzed harbored a malignant lesion. Q-USE demonstrated that malignant nodules have a significant higher stiffness with respect to benign one and an optimun SR cut-off value of 2.05 was individuated following ROC analysis. Univariate analysis showed that hypoechogenicity, irregular margins and SR >2.05 associated with malignancy, with an accuracy of 67.2%, 81,0% and 89.8%, respectively. Data were unaffected by nodule size or thyroiditis. These findings were confirmed in multivariate analysis demonstrating a significant association of the SR and the irregular margins with thyroid nodule’s malignancy. In conclusion, we demonstrated the diagnostic utility of Q-USE in the differential diagnosis of thyroid nodules with indeterminate cytology that, if confirmed, could be of major clinical utility in patients’ presurgical selection.
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Affiliation(s)
- Vito Cantisani
- Department of Radiology, Oncology and Antomy Pathology, “Sapienza” University of Rome, Rome, Italy
| | - Salvatore Ulisse
- Department of Experimental Medicine, “Sapienza” University of Rome, Rome, Italy
| | - Eleonora Guaitoli
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Corrado De Vito
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
| | - Riccardo Caruso
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Renzo Mocini
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Vito D’Andrea
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Valeria Ascoli
- Department of Radiology, Oncology and Antomy Pathology, “Sapienza” University of Rome, Rome, Italy
| | - Alfredo Antonaci
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Carlo Catalano
- Department of Radiology, Oncology and Antomy Pathology, “Sapienza” University of Rome, Rome, Italy
| | - Francesco Nardi
- Department of Radiology, Oncology and Antomy Pathology, “Sapienza” University of Rome, Rome, Italy
| | - Adriano Redler
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Paolo Ricci
- Department of Radiology, Oncology and Antomy Pathology, “Sapienza” University of Rome, Rome, Italy
| | - Enrico De Antoni
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
| | - Salvatore Sorrenti
- Department of Surgical Sciences, “Sapienza” University of Rome, Rome, Italy
- * E-mail:
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