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Heo J, Ryu HJ, Park H, Kim TH, Kim SW, Oh YL, Chung JH. Mortality rate and causes of death in papillary thyroid microcarcinoma. Endocrine 2024; 83:671-680. [PMID: 37814113 DOI: 10.1007/s12020-023-03510-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/26/2023] [Indexed: 10/11/2023]
Abstract
PURPOSE Papillary thyroid microcarcinoma (PTMC) has an excellent prognosis; however, some PTMCs exhibit poor outcomes. Cancer-specific death from PTMC has been rarely reported, so we aimed to evaluate mortality rates and causes of death in patients who died with PTMC. METHODS We retrospectively reviewed 8969 PTMC patients treated at Samsung Medical Center from 1994 to 2017. Mortality rate and causes of death in PTMC patients were evaluated and compared with those of 7873 patients with papillary thyroid carcinoma (PTC) > 1 cm. In addition, we reviewed previous publications reporting cancer-specific deaths from PTMC. RESULTS Among the 8969 PTMC patients, 107 (1.2%) patients died. Only two (0.02%) patients have died of PTMC, which was less than the cancer-specific deaths from PTC > 1 cm (0.71%). Among the deceased PTMC patients, 63 (58.9%) died of other malignancies, three (2.8%) died of cardiovascular diseases, and five (4.7%) died of other diseases. Compared with PTC > 1 cm, cancer-specific deaths was less (1.9% vs. 15.1%, P < 0.001), and deaths from other malignancies were higher in deceased PTMC patients (58.9% vs. 30.5%, P < 0.001). According to 18 studies, PTMC-specific mortality rates ranged from 0.05% to 14.3%, and 336 cancer-specific deaths (0.43%) occurred among 78,770 PTMC patients. CONCLUSION The cancer-specific mortality rate of PTMC patients was extremely low (0.02%). More than half of deceased PTMC patients died of other malignancies, which was significantly more than those with PTC > 1 cm. These results support that active surveillance can be selected as a therapeutic option for PTMC.
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Affiliation(s)
- Jung Heo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Myongji Hospital, Hanyang University College of Medicine, 55, Hwasu-ro 14 beongil, Deokyang-gu, Goyang-si, Gyeonggi-do, Korea
| | - Hyun Jin Ryu
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Korea
| | - Hyunju Park
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, 59 Yatap-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea
| | - Tae Hyuk Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Korea
| | - Sun Wook Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Korea
| | - Young Lyun Oh
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Korea
| | - Jae Hoon Chung
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Korea.
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Huang Y, Wang Y, Liu L, Zhu L, Qiu Y, Zuo D, Lu X, Dong Y, Jung EM, Wang W. VueBox® perfusion analysis of dynamic contrast enhanced ultrasound provides added value in the diagnosis of small thyroid nodules. Clin Hemorheol Microcirc 2023; 83:409-420. [PMID: 36683500 DOI: 10.3233/ch-221681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES To explore the potential added value of dynamic contrast enhanced ultrasound (DCE-US) using VueBox® software for the diagnosis of small solid thyroid nodules (≤1.0 cm). PATIENTS AND METHODS This prospective study was approved by the institutional review board and it was performed at two hospitals from January 2020 to October 2020. B mode ultrasound and contrast enhanced ultrasound (CEUS) images were obtained for 79 small solid thyroid nodules (≤1.0 cm) confirmed by ultrasound-guided fine needle aspiration cytology results in 79 consecutive patients (55 women and 24 men, median age: 41 years). The CEUS time-intensity curves (TICs) of thyroid nodules and surrounding parenchyma were created by VueBox® software (Bracco, Italy). The CEUS quantitative parameters were obtained after curve fitting. The diagnostic efficiency of the diagnostic performance of CEUS and DCE-US was evaluated and compared. The weighted kappa statistic (κ) was performed to assess the interobserver agreement and consistency between the diagnosis of CEUS and DCE-US. RESULTS Among the 79 thyroid nodules, 56 (70.9 %) were malignant and 23 (29.1 %) were benign lesions. Hypoenhancement during the arterial phase of CEUS was associated with malignancy (P < 0.001), with an AUC of 0.705 (sensitivity 71.4 %, specificity 69.6 %). Among all CEUS quantitative parameters, the peak enhancement (PE), wash-in rate (WiR), and wash-out rate (WoR) of DCE-US in malignancies were significantly lower than those in benign nodules (P = 0.049, P = 0.046, and P = 0.020, respectively). The AUCs of PE, WiR, and WoR were 0.642 (sensitivity 65.2 %, specificity 67.9 %), 0.643 (sensitivity 43.5 %, specificity 91.1 %), and 0.667 (sensitivity 69.6 %, specificity 69.6 %) in differentiation between benign and malignant small solid thyroid nodules (≤1.0 cm), respectively. Comparing the quantitative parameters of DCE-US between small solid thyroid nodules and surrounding normal thyroid parenchyma, the PE, WiAUC, WiR, WiPI, WoAUC, WiWoAUC, and WoR of the nodules were significantly lower than those of normal thyroid tissue (P = 0.008, P < 0.001, P = 0.037, P = 0.009, P = 0.003, P = 0.002, P = 0.049, respectively). A total of 16 (20.3 %) nodules showed isoenhancement during the arterial phase of CEUS, while the median PE ratio of surrounding tissue and thyroid nodules was 1.70 (IQR: 1.33-1.89). CONCLUSIONS VueBox® is a helpful tool for the evaluation of dynamic microvascularization of thyroid nodules, and DCE-US using VueBox® perfusion analysis could provide added values for differential diagnosis of small solid thyroid nodules (≤1.0 cm).
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Affiliation(s)
- Yunlin Huang
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Wang
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lingxiao Liu
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lei Zhu
- Department of Ultrasound, Haikou Hospital of The Maternal and Child Health, Haikou, China
| | - Yijie Qiu
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dan Zuo
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiuyun Lu
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | | | | | - Wenping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
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Vianello F, Censi S, Watutantrige-Fernando S, Barollo S, Zhu YH, Albiger N, Bertazza L, Manso J, Carducci S, Benna C, Iacobone M, Galuppini F, Pennelli G, Mian C. The role of the size in thyroid cancer risk stratification. Sci Rep 2021; 11:7303. [PMID: 33790328 PMCID: PMC8012699 DOI: 10.1038/s41598-021-86611-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 03/08/2021] [Indexed: 11/18/2022] Open
Abstract
Only a minority of cases of differentiated thyroid carcinoma (DTC) have a poor clinical outcome. Clinical outcomes and molecular aspects were assessed in: 144 DTC ≤ 40 mm without distant metastases (group 1); 50 DTC > 40 mm without distant metastases (group 2); and 46 DTC with distant metastases (group 3). Group 3 had a worse outcome than the other two groups: during the follow-up, patients more frequently had persistent disease, died, or underwent further treatment. The outcomes did not differ between groups 1 and 2. Group 3 had a higher prevalence of TERT promoter mutations than group 2 (32.6% vs 14%). Group 1 had a higher frequency of BRAF mutations than groups 2 or 3 (61.1% vs 16.0% and 26.1%, respectively), while RAS mutations were more common in group 2 than in groups 1 and 3 (16.0% vs 2.1% and 6.5%, respectively). Groups 1 and 2 shared the same outcome, but were genetically distinct. Only lymph node involvement, distant metastases, older age and (among the molecular markers) TERT promoter mutations were independent predictors of a worse outcome. Metastatic DTC had the worst outcome, while the outcome was identical for large and small non-metastatic DTC, although they showed different molecular patterns. TERT promoter mutations emerged as an independent factor pointing to a poor prognosis.
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Affiliation(s)
- Federica Vianello
- Department of Radiotherapy, Istituto Oncologico Veneto-IRCCS, Padua, Italy
| | - Simona Censi
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | | | - Susi Barollo
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Yi Hang Zhu
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Nora Albiger
- Department of Radiotherapy, Istituto Oncologico Veneto-IRCCS, Padua, Italy
| | - Loris Bertazza
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Jacopo Manso
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Sofia Carducci
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Clara Benna
- Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
| | - Maurizio Iacobone
- Endocrine Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
| | - Francesca Galuppini
- Surgical Pathology and Cytopathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Gianmaria Pennelli
- Surgical Pathology and Cytopathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Caterina Mian
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy.
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Colombo C, De Leo S, Di Stefano M, Trevisan M, Moneta C, Vicentini L, Fugazzola L. Total Thyroidectomy Versus Lobectomy for Thyroid Cancer: Single-Center Data and Literature Review. Ann Surg Oncol 2021; 28:4334-4344. [PMID: 33566240 PMCID: PMC8253713 DOI: 10.1245/s10434-020-09481-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/06/2020] [Indexed: 12/26/2022]
Abstract
Background Controversies remain about the ideal risk-based surgical approach for differentiated thyroid cancer (DTC). Methods At a single tertiary care institution, 370 consecutive patients with low- or intermediate-risk DTC were submitted to either lobectomy (LT) or total thyroidectomy (TT) and were followed up. Results Event-free survival by Kaplan–Meier curves was significantly higher after TT than after LT for the patients with either low-risk (P = 0.004) or intermediate-risk (P = 0.032) tumors. At the last follow-up visit, the prevalence of event-free patients was higher in the TT group than in the LT low-risk group (95% and 87.5%, respectively; P = 0.067) or intermediate-risk group (89% and 50%; P = 0.008). No differences in persistence prevalence were found among microcarcinomas treated by LT or TT (low risk, P = 0.938 vs. intermediate-risk, P = 0.553). Nevertheless, 15% of the low-risk and 50% of the intermediate-risk microcarcinomas treated by LT were submitted to additional treatments. On the other hand, macrocarcinomas were significantly more persistent if treated with LT than with TT (low-risk, P = 0.036 vs. intermediate-risk, P = 0.004). Permanent hypoparathyroidism was more frequent after TT (P = 0.01). After LT, thyroglobulin (Tg)/thyroid-stimulating hormone (TSH) had shown decreasing trend in 68% of the event-free patients and an increasing trend in the persistent cases. Conclusions Lobectomy can be proposed for low-risk microcarcinomas, although in a minority of cases, additional treatments are needed, and a longer follow-up period usually is required to confirm an event-free outcome compared with that for patients treated with TT. On the other hand, to achieve an excellent response, TT should be favored for intermediate-risk micro- and macro-DTCs despite the higher frequency of postsurgical complications. Supplementary Information The online version of this article (10.1245/s10434-020-09481-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carla Colombo
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Simone De Leo
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Marta Di Stefano
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Matteo Trevisan
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Claudia Moneta
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Leonardo Vicentini
- Endocrine Surgery Unit, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Laura Fugazzola
- Division of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy. .,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
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Hu R, Xu G, Stricker T, Li B, Weiss VL, Bischoff L. INCIDENTAL PULMONARY METASTASES REVEALING SUBCENTIMETER PAPILLARY THYROID CARCINOMA. AACE Clin Case Rep 2020; 6:e273-e278. [PMID: 32984537 DOI: 10.4158/accr-2020-0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/17/2020] [Indexed: 11/15/2022] Open
Abstract
Objective Here we present 2 cases of papillary thyroid microcarcinomas (PMCs) that had metastasized at presentation. The 2015 American Thyroid Association and the American College of Radiology Thyroid Imaging Reporting and Data System (TI-RADS) criteria do not recommend biopsy of the majority of subcentimeter thyroid nodules, as PMCs are mostly indolent with excellent prognosis. However, the paradigm of active surveillance presents a conundrum on how to identify the rare patient with distant metastatic disease while avoiding unnecessary intervention in the majority. Methods After initial discovery of incidental lesions on chest computed tomography, core or wedge biopsies of the lung lesion were performed. Thyroid nodules on ultrasound were classified by TI-RADS. Tumor DNA was sequenced, annotated, filtered on 119 known cancer genes, and filtered for variants with an exome allele frequency of <0.001. Results A 70-year-old woman and a 29-year-old woman presented with incidental pulmonary lesions on computed tomography scan. Lung biopsy revealed lung metastases from papillary thyroid carcinoma. The thyroid nodules in both patients were TI-RADS 3 and American Thyroid Association low-suspicion. Molecular testing showed a c.1721C>G mutation (p.Thr574Ser) in the TSHR gene in patient 1 and a codon 61 mutation in the NRAS gene in patient 2. Both patients were iodine-avid, with complete structural remission in one patient and ongoing treatment with evidence of structural response in the other. Conclusion The 2 presentations demonstrate unexpected and concerning behavior of PMCs. Both thyroid tumors were subcentimeter in diameter, meaning they would have escaped detection using traditional risk-stratification algorithms in active surveillance. Further knowledge of tumor genetics and microenvironment may assist in predicting tumor behavior in PMCs.
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Affiliation(s)
- Ruey Hu
- Department of Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - George Xu
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Thomas Stricker
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Bingshan Li
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee
| | - Vivian L Weiss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lindsay Bischoff
- Division of Endocrinology, Vanderbilt University Medical Center, Nashville, Tennessee
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Cai J, Fang F, Chen J, Xiang D. Unilateral Multifocality and Bilaterality Could Be Two Different Multifocal Entities in Patients with Papillary Thyroid Microcarcinoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9854964. [PMID: 32714990 PMCID: PMC7355378 DOI: 10.1155/2020/9854964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/04/2020] [Accepted: 06/12/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Multifocality within an affected lobe (unilateral multifocality) or two lobes (bilaterality) is commonly denoted as multifocality without differentiation. Recently, there has been molecular evidence indicating that unilateral multifocality and bilaterality could be two different entities. However, few studies concerning the comparison between these two different multifocality entities have been reported. DESIGN A retrospective cohort study. METHODS From 2010 to 2013, in total, 949 consecutive patients with papillary thyroid microcarcinoma (PTMC) were enrolled and further divided into four groups based on multifocality status. Unilateral multifocality and bilaterality were analyzed by binary logistic regression along with other clinicopathological factors. RESULTS Unilateral multifocality, instead of bilaterality, was correlated with central neck metastasis (CNM) in both univariate and multivariate analyses. Group IV (unilateral multifocality and bilaterality coexist) had the highest CNM rate. Group III (unilateral multifocality) had a higher CNM rate than group II (bilaterality, single lesion in each lobe), with a significant difference (p = 0.032). Similar lateral neck metastasis tendency was observed among the four groups. In the multivariate analysis, only unilateral multifocality and bilaterality which coexisted were correlated with CNM. Moreover, 9 cases had a recurrence, with the recurrence rate ranking top in group IV (3.6%), second in group III (2.8%), and third in group II (1.2%). The difference was significant (p = 0.021). CONCLUSION Unilateral multifocality and bilaterality could be two different multifocal entities in patients with PTMC. Unilateral multifocality serving as a prognostic factor indicated a worse prognosis than bilaterality on neck metastasis. When the two factors coexisted in PTMC, patients had the highest risk of CNM and possibly local recurrence compared with those with either risk factor alone.
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Affiliation(s)
- Junbo Cai
- Department of General Surgery, Taizhou Municipal Hospital, Taizhou, Zhejiang, China
| | - Fang Fang
- Department of General Surgery, Taizhou Municipal Hospital, Taizhou, Zhejiang, China
| | - Jianbin Chen
- Department of General Surgery, Taizhou Municipal Hospital, Taizhou, Zhejiang, China
| | - Dapeng Xiang
- Department of General Surgery, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, Zhejiang, China
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Jiwang L, Yahong L, Kai L, Bo H, Yuejiao Z, Haotian W, Tao Y. Clinicopathologic factors and preoperative ultrasonographic characteristics for predicting central lymph node metastasis in papillary thyroid microcarcinoma: a single center retrospective study. Braz J Otorhinolaryngol 2020; 88:36-45. [PMID: 32571753 PMCID: PMC9422721 DOI: 10.1016/j.bjorl.2020.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/21/2020] [Accepted: 05/03/2020] [Indexed: 11/25/2022] Open
Abstract
Introduction The treatment of papillary thyroid microcarcinoma remains controversial. Central lymph node metastasis is common in papillary thyroid microcarcinoma and it is an important consideration in treatment strategy selection. Objective The aim of this study was to investigate clinicopathologic risk factors and thyroid nodule sonographic characteristics for central lymph node metastasis in papillary thyroid microcarcinoma. Methods We retrospectively reviewed the data of 599 papillary thyroid microcarcinoma patients who underwent surgery from 2005 to 2017 at a single institution. Univariate and multivariate analyses were used to identify the clinicopathologic factors and preoperative sonographic features of central lymph node metastasis. A receiver-operating characteristic, ROC curve analysis, was performed to identify the efficacy of ultrasonographic features in predicting central lymph node metastasis. A nomogram based on the risk factors was established to predict central lymph node metastasis. Results The incidence of central lymph node metastasis was 22.4%. The univariate and multivariate analyses suggested that gender, age, multifocality, extrathyroidal invasion, and lateral lymph node metastasis were independent risk factors for central lymph node metastasis. The univariate and multivariate analyses revealed that nodular shape, margin, and calcification were independently associated with central lymph node metastasis. The ROC curve analysis revealed that the combination of shape, margin and calcification had excellent accuracy in predicting central lymph node metastasis. The nomogram was developed based on the identified risk factors for predicting central lymph node metastasis, and the calibration plot analysis indicated the good performance and clinical utility of the nomogram. Conclusions Central lymph node metastasis is associated with male gender, younger age (<45 years), extrathyroidal invasion, multifocality and lateral lymph node metastasis in papillary thyroid microcarcinoma patients. The ultrasongraphic features, such as irregular shape, ill-defined margin and calcification, may improve the efficacy of predicting central lymph node metastasis. Surgeons and radiologists should pay close attention to the patients who have these risk factors. The nomogram may help guide surgical decision making in papillary thyroid microcarcinoma.
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Affiliation(s)
- Liang Jiwang
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Head and Neck Surgery, Liaoning Province, People's Republic of China
| | - Luo Yahong
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Medical Imaging, Liaoning Province, People's Republic of China
| | - Liang Kai
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Medical Imaging, Liaoning Province, People's Republic of China
| | - Huang Bo
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Pathology, Liaoning Province, People's Republic of China
| | - Zhao Yuejiao
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Head and Neck Surgery, Liaoning Province, People's Republic of China
| | - Wang Haotian
- Grade 2016 Clinical Medicine Class 5, The First Clinical College, Dalian Medical University, Liaoning Province, People's Republic of China
| | - Yu Tao
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Department of Medical Imaging, Liaoning Province, People's Republic of China.
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Is Less More? A Microsimulation Model Comparing Cost-effectiveness of the Revised American Thyroid Association's 2015 to 2009 Guidelines for the Management of Patients With Thyroid Nodules and Differentiated Thyroid Cancer. Ann Surg 2020; 271:765-773. [PMID: 30339630 DOI: 10.1097/sla.0000000000003074] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To assess relative clinical and economic performance of the revised American Thyroid Association (ATA) thyroid cancer guidelines compared to current standard of care. BACKGROUND Diagnosis of thyroid cancer in the United States has tripled whereas mortality has only marginally increased. Most patients present with small papillary carcinomas and have historically received at least a total thyroidectomy as a treatment. In 2015, the ATA released the revised guidelines recommending an option for active surveillance (AS) of small papillary thyroid carcinoma and thyroid lobectomy for larger unifocal tumors. METHODS We created a Markov microsimulation model to evaluate the performance of the ATA's 2015 guidelines compared to the ATA's 2009 guidelines. We modeled a cohort of simulated patients with demographic and thyroid nodule characteristics representative of those presenting clinically in the United States. Outcome measures include life expectancy, quality-adjusted life years, costs, and frequency of surgical adverse events. RESULTS In our base case analysis, the ATA 2015 strategy dominates the ATA 2009 strategy. The ATA 2015 strategy delivers greater discounted average quality-adjusted life years (13.09 vs 12.43) at a lower discounted average cost ($14,752 vs $20,126). Deaths due to thyroid cancer under the 2015 strategy are higher than the 2009 strategy but this is offset by a reduction in surgical deaths, leading to greater average life expectancy under the ATA 2015 strategy. The optimal strategy is sensitive to patients who experience a greater decrement in quality of life while undergoing AS. CONCLUSIONS The ATA 2015 Guidelines represent a cost-effective strategy regarding AS and extent of surgery.
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Feng JW, Ye J, Wu WX, Pan H, Qin AC, Jiang Y, Wu BQ. Management of Clinically Solitary Papillary Thyroid Carcinoma Patients According to Risk-Scoring Model for Contralateral Occult Carcinoma. Front Endocrinol (Lausanne) 2020; 11:553577. [PMID: 33133013 PMCID: PMC7578423 DOI: 10.3389/fendo.2020.553577] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 09/17/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate risk factors of occult carcinoma in clinically solitary papillary thyroid carcinoma (PTC) patients, and to put emphasis on the predictive value of risk-scoring model to determine the optimal scope of surgery. METHODS A total of 573 clinically solitary PTC patients who underwent total thyroidectomy (TT) from two hospitals were retrospectively analyzed. Clinicopathological features were collected, univariate and multivariate analyses were performed to determine risk factors of occult carcinoma. The Cox proportional hazards model was used to analyze the risk factors of recurrence. A scoring model was constructed according to independent risk factors of contralateral occult carcinoma. RESULTS 19.2% of clinically solitary PTC patients had occult carcinoma, among which 3.7% patients had ipsilateral occult carcinoma and 15.5% patients had contralateral occult carcinoma. Factors such as male, the presence of benign nodule, and vascular invasion increase the risk of ipsilateral occult carcinoma. Tumor size >1 cm, the presence of benign nodule, extrathyroidal extension, central lymph node metastasis, lateral lymph node metastasis are independent predictors of contralateral occult carcinoma. Contralateral occult carcinoma is the independent predictor of recurrence. A 10-point risk-scoring model was established to predict the contralateral occult carcinoma in clinically solitary PTC patients. CONCLUSION Lobectomy is sufficient for clinically solitary PTC patients with risk factors of ipsilateral occult carcinoma. For clinically solitary PTC patients with score ≥4, careful preoperative evaluations are required to rule out the contralateral occult carcinoma. Even if contralateral occult carcinoma is not detected preoperatively, TT is recommended for high-risk patients.
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Affiliation(s)
- Jia-Wei Feng
- Department of Thyroid Surgery, The Third Affiliated Hospital of Soochow University, Changzhou First People’s Hospital, Changzhou, China
| | - Jing Ye
- Department of Thyroid Surgery, The Third Affiliated Hospital of Soochow University, Changzhou First People’s Hospital, Changzhou, China
| | - Wan-Xiao Wu
- Department of Thyroid Surgery, The Third Affiliated Hospital of Soochow University, Changzhou First People’s Hospital, Changzhou, China
| | - Hua Pan
- Department of Thyroid Surgery, The Third Affiliated Hospital of Soochow University, Changzhou First People’s Hospital, Changzhou, China
| | - An-Cheng Qin
- Department of General Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Yong Jiang
- Department of Thyroid Surgery, The Third Affiliated Hospital of Soochow University, Changzhou First People’s Hospital, Changzhou, China
- *Correspondence: Yong Jiang, ; Bao-Qiang Wu,
| | - Bao-Qiang Wu
- Department of General Surgery, The Second People’s Hospital of Changzhou affiliated to Nanjing Medical University, Changzhou, China
- *Correspondence: Yong Jiang, ; Bao-Qiang Wu,
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Abstract
BACKGROUND The incidence of papillary thyroid microcarcinoma (PTMC) has been increasing sharply, the current statement about whether PTMC patients should undergo radioactive iodine (RAI) remnant ablation is still controversial, mainly because it is uncertain whether RAI treatment can reduce the recurrence rate. OBJECTIVE To evaluate the effectiveness of RAI remnant ablation for thyroid cancer-related outcomes of PTMC patients. METHODS We comprehensively searched PubMed, Cochrane Library, Scopus and Science Direct for studies that compared the effectiveness after total-thyroidectomy or near total-thyroidectomy, with or without RAI remnant ablation treatment. Random and fixed-effects meta-analytical models were used where indicated, and between-study heterogeneity was assessed. RESULTS Twenty-two studies, which included 8724 patients, met our search criteria and were assessed. For PTMC patients treated by total thyroidectomy or near-total thyroidectomy, the locoregional recurrence rates were 1.92 and 7.36% [risk ratio (RR)=0.45; 95% confidence interval (CI)=0.18-1.11; P=0.08] for patients with or without RAI treatment respectively, the distant metastasis rates were 1.39 and 2.46% (RR=0.64; 95% CI=0.28-1.48; P=0.30), and the thyroid cancer-related mortality rates were 0.98 and 1.76% (RR=0.68; 95% CI=0.22-2.09; P=0.50). CONCLUSION For PTMC patients who have already treated by total thyroidectomy or near-total thyroidectomy, incremental RAI remnant ablation may significantly improve thyroid cancer-related outcomes.
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Minimal extrathyroidal extension affects the prognosis of differentiated thyroid cancer: Is there a need for change in the AJCC classification system? PLoS One 2019; 14:e0218171. [PMID: 31199822 PMCID: PMC6568405 DOI: 10.1371/journal.pone.0218171] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 05/28/2019] [Indexed: 11/19/2022] Open
Abstract
Minimal extrathyroidal extension (ETE) is defined as tumor cells extending to the sternothyroid muscle or perithyroidal soft tissue. However, there is controversy regarding whether the magnitude of ETE (minimal or gross) should be considered in assigning a precise TNM stage to patients with thyroid cancer in the seventh/eighth editions of the AJCC system. The present study evaluated Surveillance, Epidemiology, and End Results data from 107,114 patients with differentiated thyroid cancer (2004–2013) to determine whether the magnitude of ETE (thyroid confinement, minimal, or gross) influenced the ability to predict cancer-specific survival (CSS) and overall survival (OS). Patient mortality was evaluated using Cox proportional hazards regression analyses and Kaplan-Meier analyses with log-rank tests. The cancer-specific mortality rates per 1,000 person-years were 1.407 for the thyroid confinement group (95% CI: 1.288–1.536), 5.133 for the minimal ETE group (95% CI: 4.301–6.124), and 29.735 for the gross ETE group (95% CI: 28.147–31.412). Relative to the thyroid confinement group, patients with minimal ETE and gross ETE had significantly poorer CSS and OS in the univariate and multivariate analyses (both P<0.001). After propensity-score matching according to age, sex, and race, we found that thyroid confinement was associated with better CSS and OS rates than minimal ETE (P<0.001) and gross ETE (P<0.001). These results from a population-based cohort provide a reference for precise personalized treatment and management of patients with minimal ETE. Furthermore, it may be prudent to revisit the magnitude of ETE as advocated by the AJCC and currently used for treatment recommendation by the American Thyroid Association.
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Completion Thyroidectomy in Differentiated Thyroid Malignancy-A Prospective Analysis. Indian J Surg Oncol 2019; 10:130-134. [PMID: 30948887 DOI: 10.1007/s13193-018-0845-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/28/2018] [Indexed: 10/27/2022] Open
Abstract
Completion thyroidectomy, being a surgically challenging procedure, choice of doing such procedure in differentiated thyroid cancer (DTC), remains unclear due to the complications involved following the procedure. So this study is intended to look into risk factors that will prompt completion thyroidectomy and surgery-related complications. A prospective analysis was done in 48 patients diagnosed with DTC during the year 2017. Completion thyroidectomy with or without neck dissection was performed as per institutional protocol. Clinico-radiological features were compared with histopathology in completion thyroidectomy specimen. The incidence of malignancy in completion thyroidectomy specimen and complications during the procedure were noted. Risk factors associated with malignancy were statistically analyzed. The incidence of malignancy in completion thyroidectomy specimen was 56.25%. Papillary carcinoma thyroid (PCT) had a statistically significant risk compared to follicular carcinoma thyroid (p = 0.042). Also, capsular invasion in primary specimen had a significant impact (p = 0.021) with odds of 7.20 times increase in incidence of malignancy and patients with age more than 55 years had a significantly increased risk of malignancy (p = 0.05). There was no statistically significant increase in complications following procedure, with respect to duration between surgeries or type of surgeries performed. Incidence of malignancy in completion thyroidectomy specimen was high. Completion thyroidectomy can be safely performed under experienced hands with an acceptable level of complications. It should be considered in places where patients are non-compliant and in those with PCT, tumor with capsular invasion and elderly patients.
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Treatment efficacy between total thyroidectomy and lobectomy for patients with papillary thyroid microcarcinoma: A systemic review and meta-analysis. Eur J Surg Oncol 2018; 44:1679-1684. [DOI: 10.1016/j.ejso.2018.08.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/20/2018] [Accepted: 08/03/2018] [Indexed: 01/11/2023] Open
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Yi D, Song P, Huang T, Tang X, Sang J. A meta-analysis on the effect of operation modes on the recurrence of papillary thyroid microcarcinoma. Oncotarget 2018; 8:7148-7156. [PMID: 27756889 PMCID: PMC5351696 DOI: 10.18632/oncotarget.12698] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 10/10/2016] [Indexed: 12/21/2022] Open
Abstract
Whether total thyroidectomy reduces the recurrence rate in patients with papillary thyroid microcarcinoma (PTMC) is currently controversy. Conclusions of sporadic, inconsistent, and mono-institutional studies need a meta-analysis to evaluate. 525 relevant studies were obtained from initial search on PubMed, 511 studies were excluded by inclusion and exclusion criteria. Eligible data were extracted from each included study. The Odds ratios (ORs) and 95% confidence interval (CI) were used to assess the difference in the recurrence rates between PTMC patients treated with total thyroidectomy and non-total thyroidectomy. OR and 95% CI were calculated using a fixed-effects or a random-effects model. The Q statistic was used to evaluate homogeneity and Beggs test was used to assess publication bias. 14 studies meeting the inclusion criteria were included in this meta-analysis. The over all recurrence rates of pooled patients with total thyroidectomy and non-total thyroidectomy were 2.83% and 2.84% respectively. Primary random-effects model analysis showed, no significant difference of recurrence rates existed between two operation modes (OR = 0.732, 95% CI: 0.444 - 1.208), while, high heterogeneity among studies was found, I-squared index (I2) = 40.2%. After remove one study with high heterogeneity, the OR of the pooled recurrence rates of the total thyroidectomy and the non-total thyroidectomy groups was 0.786 (95% CI: 0.363 - 1.701), further suggesting no significant difference of the recurrence rate exists between two operation modes. Our meta-analysis demonstrated postoperative recurrence of PTMC is not reduced by total thyroidectomy, non-total thyroidectomy is also a good choice to treat PTMC patients.
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Affiliation(s)
- Dandan Yi
- Department of general surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Peng Song
- Department of General Surgery, Nanjing Drum Tower Hospital, Nanjing, Jiangsu Province, China
| | - Tao Huang
- Department of general surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiaoqiao Tang
- Department of General Surgery, Nanjing Drum Tower Hospital, Nanjing, Jiangsu Province, China
| | - Jianfeng Sang
- Department of General Surgery, Nanjing Drum Tower Hospital, Nanjing, Jiangsu Province, China
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Qu HJ, Qu XY, Hu Z, Lin Y, Wang JR, Zheng CF, Tan Z. The synergic effect of BRAF V600E mutation and multifocality on central lymph node metastasis in unilateral papillary thyroid carcinoma. Endocr J 2018; 65:113-120. [PMID: 29070763 DOI: 10.1507/endocrj.ej17-0110] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The purpose of this study is to evaluate the potential synergic effect of BRAFV600E mutation and multifocality on central lymph nodes metastasis (CLNM) in the patients with unilateral papillary thyroid carcinoma (PTC). We enrolled 413 patients with unilateral PTCs who accepted prophylactic unilateral or bilateral central lymph node dissection (LND). Univariate and multivariate analyses were made to determine the association between related factors and CLNM. Then, all patients were divided into 4 groups based on their status of BRAFV600E mutation and multifocality. Relative excess risk of interaction (RERI), attributable proportion (AP) of interaction and synergy index (SI) were applied to evaluate the interactive effect of these two factors on CLNM. Results showed that BRAFV600E mutation and multifocality were independent risk factors for CLNM. A further study revealed that unilateral PTCs accompanying multifocality with BRAFV600E mutation had the highest incidence of CLNM compared with other subgroups. Besides, RERI was 4.323 (95% CI = 1.276-7.369), AP was 0.523 (95% CI = 0.364-0.682) and SI was 2.469 (95% CI = 1.607 to 3.794), indicating a significant additive interaction of BRAFV600E mutation and multifocality on CLNM. The present study has confirmed that BRAFV600E mutation and multifocality are risk factors for CLNM in unilateral PTC. Additionally, unilateral PTC patients accompanying multifocality with BRAFV600E mutation may have an increased risk of CLNM in clinically negative CLNM.
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Affiliation(s)
- Hai-Jiang Qu
- The Department of Thyroid and Breast, Taizhou Cancer Hospital, Wenling, Zhejiang, China
| | - Xue-Yan Qu
- Nursing Department, The First People's Hospital of Wenling, Wenling City, Zhejiang, China
| | - Ze Hu
- The Department of Thyroid and Breast, Taizhou Cancer Hospital, Wenling, Zhejiang, China
| | - Yan Lin
- Department of Laboratory Medicine, Taizhou Cancer Hospital, Wenling, Zhejiang, China
| | - Jun-Rong Wang
- Department of Laboratory Medicine, Wenling Women's and Children's Hospital, Wenling, Zhejiang, China
| | - Chang-Fu Zheng
- Department of Ultrasound, Taizhou Cancer Hospital, Wenling, Zhejiang, China
| | - Zhuo Tan
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
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Partial thyroidectomy for papillary thyroid microcarcinoma: Is completion total thyroidectomy indicated? Int J Surg 2018; 41 Suppl 1:S34-S39. [PMID: 28506411 DOI: 10.1016/j.ijsu.2017.02.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 12/18/2022]
Abstract
AIM Papillary thyroid microcarcinoma (PTMC) is increasing in incidence. Despite its excellent clinical outcomes, there is still debate regarding which surgical approach is more appropriate for PTMC, procedures including hemithyroidectomy (HT), total thyroidectomy (TT), and completion thyroidectomy (CT) after initial HT and histopathologic examination confirming a PTMC. Here we report our experience in the surgical management of PTMC. METHODS We conducted a retrospective evaluation of all patients who received a postoperative diagnosis of PTMC between January 2001 and January 2016. Every patient was divided according to the type of surgery performed (TT or HT alone). Follow-up consisted of regular clinical and neck ultrasonographic examination. Clinical and histopathological parameters (e.g. age, sex, lesion size, histological features, multifocality, lymph node metastases, BRAF status when available) as well as clinical outcomes (e.g. complications rates, recurrence, overall survival) were analyzed. RESULTS Group A consisted of 86 patients who underwent TT, whereas Group encompassed 19 patients who underwent HT. Mean follow-up period was 58.5 months. In Group A, one patient (1.2%) experienced recurrence in cervical lymph nodes with need for reoperation. In Group B, eight patients (42%) underwent completion thyroidectomy after histopathological examination confirming PTMC, while one patient (5.3%) developed PTMC in the contralateral lobe with need for reoperation at 2 years after initial surgery. Multifocality was found in 19 patients in Group A (22%). Of these, 14 presented bilobar involvement, whereas in 3 cases multifocality involved only one lobe. 1 patient in Group B (5.3%) presented with unilateral multifocal PTMC (p = 0.11). CONCLUSIONS Low-risk patients with PTMC may benefit from a more conservative treatment, e.g. HT followed by close follow-up. However, appropriate selection of patients based on risk stratification is the key to differentiate therapy options and gain better results.
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17
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Xue S, Wang P, Hurst ZA, Chang YS, Chen G. Active Surveillance for Papillary Thyroid Microcarcinoma: Challenges and Prospects. Front Endocrinol (Lausanne) 2018; 9:736. [PMID: 30619082 PMCID: PMC6302022 DOI: 10.3389/fendo.2018.00736] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/20/2018] [Indexed: 12/19/2022] Open
Abstract
Active surveillance (AS) can be considered as an alternative to immediate surgery in low-risk papillary thyroid microcarcinoma (PTMC) without clinically apparent lymph nodes, gross extrathyroidal extension (ETE), and/or distant metastasis according to American Thyroid Association. However, in the past AS has been controversial, as evidence supporting AS in the management of PTMC was scarce. The most prominent of these controversies included, the limited accuracy and utility of ultrasound (US) in the detection of ETE, malignant lymph node involvement or the advent of novel lymph node malignancy during AS, and disease progression. We summarized publications and indicated: (1) US, performer-dependent, could not accurately diagnose gross ETE or malignant lymph node involvement in PTMC. However, the combination of computed tomography and US provided more accurate diagnostic performance, especially in terms of selection sensitivity. (2) Compared to immediate surgery patients, low-risk PTMC patients had a slightly higher rate of lymph node metastases (LNM), although the overall rate for both groups remained low. (3) Recent advances in the sensitivity and specificity of imaging and incorporation of diagnostic biomarkers have significantly improved confidence in the ability to differentiate indolent vs. aggressive PTMCs. Our paper reviewed current imagings and biomarkers with initial promise to help select AS candidates more safely and effectively. These challenges and prospects are important areas for future research to promote AS in PTMC.
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Affiliation(s)
- Shuai Xue
- Thyroid Surgery Department, The First Hospital of Jilin University, Changchun, China
| | - Peisong Wang
- Thyroid Surgery Department, The First Hospital of Jilin University, Changchun, China
| | - Zachary A. Hurst
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, OH, United States
| | - Yi Seok Chang
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, OH, United States
| | - Guang Chen
- Thyroid Surgery Department, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Guang Chen
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18
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Abstract
OBJECTIVES To review how changes in the pathologic definitions for papillary tumors of the thyroid during recent decades have affected outcomes for patients with these tumors. METHODS Forty-nine previous reports or studies involving collectively 53,606 patients were reviewed, and new analyses were performed on the data to include analyses of agreement, incidence, survival, and diagnostic categories. RESULTS The past emphasis on cytologic features to define papillary tumors has not resulted in ideal pairwise agreement between pathologists and has produced incidence and survival data suggesting overdetection and overdiagnosis. Most recently, tissue patterns have been reemphasized. CONCLUSIONS With the recent reemphasis on diagnostic tissue patterns (over cytologic criteria), agreements between pathologists for the diagnosis of papillary tumors should improve, and the incidence of papillary carcinoma should decline. Nevertheless, updated survival analyses demonstrate excellent long-term survival for most of those diagnosed with papillary carcinomas.
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19
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Yin DT, Yu K, Lu RQ, Li X, Xu J, Lei M. Prognostic impact of minimal extrathyroidal extension in papillary thyroid carcinoma. Medicine (Baltimore) 2016; 95:e5794. [PMID: 28033304 PMCID: PMC5207600 DOI: 10.1097/md.0000000000005794] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 11/28/2016] [Accepted: 12/03/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND It is widely accepted that maximal extrathyroidal extension (ETE) plays a vital role in the prognosis of papillary thyroid carcinoma (PTC). However, there is no consensus among researchers about the meaning of minimal ETE (mETE) in PTC. Herein, we conducted a systematic review and meta-analysis to examine the role of mETE in the prognosis of PTC. METHODS We searched PubMed, EMBASE, and Cochrane search trials databases in English to identify studies comparing data on disease recurrence in PTC patients with mETE and those with no ETE. To summarize the data related to mETE status, risk ratios and hazard ratios adjusted for potential confounders were used to assess the number of recurrence and time-dependent risks related to mETE status, respectively. RESULTS According to the inclusion criteria, a total of 7951 patients from 9 studies were included. The recurrence rate in patients with mETE is significantly higher when compared with those with no ETE (risk ratio = 1.70, 95% confidence interval: 1.26-2.28, I = 56%). According to the data summarized with hazard ratios, PTC patients with mETE showed a significantly increased risk of disease recurrence. CONCLUSION mETE is a risk factor for poor prognosis in patients with PTC. Our innovative classification of ETE has its value in assessing the prognosis of PTC.
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Affiliation(s)
- De-Tao Yin
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University
- Key Discipline Laboratory of Clinical Medicine Henan
| | - Kun Yu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University
- Key Discipline Laboratory of Clinical Medicine Henan
| | - Run-Qing Lu
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xianghua Li
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University
- Key Discipline Laboratory of Clinical Medicine Henan
| | - Jianhui Xu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University
- Key Discipline Laboratory of Clinical Medicine Henan
| | - Mengyuan Lei
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University
- Key Discipline Laboratory of Clinical Medicine Henan
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Leboulleux S, Tuttle RM, Pacini F, Schlumberger M. Papillary thyroid microcarcinoma: time to shift from surgery to active surveillance? Lancet Diabetes Endocrinol 2016; 4:933-942. [PMID: 27550849 DOI: 10.1016/s2213-8587(16)30180-2] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 02/08/2023]
Abstract
The incidence of differentiated thyroid cancer is increasing greatly in high-income countries. Roughly 50% of this increase is attributable to the identification of intrathyroidal papillary thyroid microcarcinomas. Since mortality associated with these tumours remains low and stable, the increasing diagnosis has led to concerns about overdiagnosis and overtreatment. Management of papillary thyroid microcarcinomas should take into account the reported absence of mortality when diagnosed in the absence of lymph node metastases and distant metastases, as shown even in recent studies promoting active surveillance; a low recurrence rate of 1-5%; and the risk of permanent complications from surgery that cannot be decreased to less than 1-3%, even in high-volume tertiary care centres with experienced surgeons. On the basis of these data, active surveillance with curative intent, in which active treatment is delayed until the cancer shows signs of significant progression to avoid side-effects of treatment, should be considered in properly selected patients.
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Affiliation(s)
- Sophie Leboulleux
- Department of Nuclear Medicine and Endocrine Oncology, Gustave Roussy and Université Paris Saclay, Villejuif, France.
| | - R Michael Tuttle
- Endocrinology Service, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Furio Pacini
- Section of Endocrinology, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Martin Schlumberger
- Department of Nuclear Medicine and Endocrine Oncology, Gustave Roussy and Université Paris Saclay, Villejuif, France
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21
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Jeong GC, Song M, Park HJ, Min JJ, Bom HS, Cho SG, Park KS, Kang SR, Kim J, Song HC, Kwon SY. Iodine Uptake Patterns on Post-ablation Whole Body Scans are Related to Elevated Serum Thyroglobulin Levels After Radioactive Iodine Therapy in Patients with Papillary Thyroid Carcinoma. Nucl Med Mol Imaging 2016; 50:329-336. [PMID: 27994688 DOI: 10.1007/s13139-016-0421-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/27/2016] [Accepted: 05/03/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE Serum thyroglobulin (Tg) level is frequently elevated shortly after radioactive iodine (RAI) ablation therapy. The authors studied the relationship between the elevation of serum Tg after RAI therapy and iodine uptake pattern on post-ablation whole body scans (RxWBSs) in patients with papillary thyroid carcinoma (PTC). MATERIALS AND METHODS The study subjects were patients with PTC that had undergone first RAI therapy with thyroid hormone withdrawal after total thyroidectomy. Patients with a high level of serum anti-Tg antibody (TgAb, ≥ 60 U/mL), possible regional or distant metastasis as determined by pre-ablation or post-ablation studies, and negative iodine uptake of the anterior neck on RxWBS were excluded. Serum Tg was checked twice, that is, 7 days after (post-ablation Tg) and on the day of RAI therapy (pre-ablation Tg). Ratio of pre-ablation Tg to post-ablation Tg (Tg ratio) was used to assess changes in serum Tg levels after RAI therapy. Patients were classified into two groups according to the presence of midline uptake above the thyroidectomy bed on RxWBS (negative (group 1) or positive (group 2) midline uptake). Variables were subjected to analysis to identify differences between the two groups. RESULTS Two hundred and fifty patients were enrolled in this study; 101 in group 1 and 149 in group 2. Based on univariate analysis, post-ablation Tg (8.12 ± 11.05 vs. 34.12 ± 54.31; P < 0.001) and Tg ratio (7.81 ± 8.98 vs. 20.01 ± 19.84; P < 0.001) were significantly higher in group 2. On the other hand, gender, tumor (T) stage, lymph node (N) stage, size, multiplicity or bilaterality of primary tumor, dose of 131I, serum TgAb and thyroid-stimulating hormone (TSH) level (before or after RAI therapy) were not significantly different in the two groups. Variables with P values of < 0.25 by univariate analysis were subjected to multivariate analysis, which showed post-ablation Tg (OR 1.060, 95 % CI = 1.028-1.092; P < 0.001) and Tg ratio (OR 1.059, 95 % CI = 1.028-1.092; P = 0.001) were significantly higher in group 2. CONCLUSION Serum Tg level after RAI therapy was significantly higher in patients with midline uptake on RxWBS, compared with patients without midline uptake on RxWBS. Further investigations are needed to reveal the correlation between serum Tg elevation and clinical outcome according to the presence of midline uptake.
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Affiliation(s)
- Geum-Cheol Jeong
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Minchul Song
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Hee Jeong Park
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Jung-Joon Min
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Hee-Seung Bom
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Sang-Geon Cho
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
| | - Ki Seong Park
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Sae-Ryung Kang
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Jahae Kim
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Ho-Chun Song
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Seong Young Kwon
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322 Seoyang-ro Hwasun-eup, Hwasun-gun Jeonnam, South Korea 519-763
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Kim SK, Woo JW, Lee JH, Park I, Choe JH, Kim JH, Kim JS. Radioactive iodine ablation may not decrease the risk of recurrence in intermediate-risk papillary thyroid carcinoma. Endocr Relat Cancer 2016; 23:367-76. [PMID: 26917553 DOI: 10.1530/erc-15-0572] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 02/25/2016] [Indexed: 11/08/2022]
Abstract
The use of radioactive iodine (RAI) ablation in patients with intermediate-risk papillary thyroid carcinoma (PTC) who show microscopic extrathyroidal extension (ETE), regional lymph node (LN) metastasis, tumors with aggressive histology, or vascular invasion has been debated due to the lack of data regarding long-term prognosis in this risk group. Therefore, the purpose of this study was to resolve the controversy surrounding the prognostic benefit of RAI ablation, especially in intermediate-risk PTC patients. We retrospectively reviewed the medical records of 8297 intermediate-risk PTC patients who underwent primary total thyroidectomy with or without neck dissection at the Thyroid Cancer Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea, between January 1997 and June 2015. Of these 8297 patients, 7483 (90.2%) received RAI ablation. After adjusting for clinicopathological characteristics, RAI ablation did not significantly decrease the risk of loco-regional recurrence (LRR) (adjusted hazard ratio (HR) 0.852, P 0.413). Moreover, RAI ablation did not decrease the risk of LRR even in intermediate-risk PTC patients with aggressive features such as BRAF positivity (adjusted HR 0.729, P 0.137), tumor size >1 cm (adjusted HR 0.762, P 0.228), multifocality (adjusted HR 1.032, P 0.926), ETE (adjusted HR 0.870, P 0.541), and regional LN metastasis (adjusted HR 0.804, P 0.349). Furthermore, high-dose RAI ablation (>100 mCi) did not significantly decrease the risk of LRR (adjusted HR 0.942, P 0.843). Therefore, RAI ablation in intermediate-risk PTC patients should be considered on the basis of tailored risk restratification.
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Affiliation(s)
- Seo Ki Kim
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jung-Woo Woo
- Department of SurgeryChangwon Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Changwon, South Korea
| | - Jun Ho Lee
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea
| | - Inhye Park
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jun-Ho Choe
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jung-Han Kim
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jee Soo Kim
- Division of Breast and Endocrine SurgeryDepartment of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Chen HY, Liu WY, Zhu H, Jiang DW, Wang DH, Chen Y, Li W, Pan G. Diagnostic value of contrast-enhanced ultrasound in papillary thyroid microcarcinoma. Exp Ther Med 2016; 11:1555-1562. [PMID: 27168773 PMCID: PMC4840781 DOI: 10.3892/etm.2016.3094] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 11/25/2015] [Indexed: 01/01/2023] Open
Abstract
The aim of the present study was to explore the value and characteristics of contrast-enhanced ultrasound (CEUS) in the diagnosis of papillary thyroid microcarcinoma (PTMC). By analyzing CEUS information of 130 nodules obtained from 106 patients with PTMC, who had been diagnosed by surgery and pathological analysis, CEUS characteristics of PTMC nodules were concluded. Based on the results, the PTMC nodules were divided into three groups as follows: 32 nodules (24.62%) were found to be enhanced earlier than the surrounding normal thyroid tissue, 95 nodules (73.08%) were enhanced at the same time as the normal thyroid tissue and 3 nodules (2.30%) were enhanced later than the normal thyroid tissue. The results also demonstrated that the peak enhancement intensity of the 130 nodules was lower compared with the irregular intensity of the normal parenchyma in corresponding thyroids, and that PTMC enhancement washed out faster than in normal thyroid parenchyma. In conclusion, the PTMC characteristics that CEUS can detect may improve the diagnostic accuracy and provide valuable information for the treatment of the disease.
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Affiliation(s)
- Hong Yan Chen
- Department of Ultrasound in Medicine, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Wei Yan Liu
- Department of Surgery, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Hui Zhu
- Department of Ultrasound in Medicine, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Dao Wen Jiang
- Department of Surgery, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Dong Hua Wang
- Department of Ultrasound in Medicine, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Yongqi Chen
- Department of Pathology, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Weihua Li
- Department of Ultrasound in Medicine, Minhang Central Hospital, Shanghai 201199, P.R. China
| | - Gaofeng Pan
- Department of Surgery, Minhang Central Hospital, Shanghai 201199, P.R. China
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Wan HF, Zhang B, Yan DG, Xu ZG. The BRAFT1799A mutation is not associated with occult contralateral carcinoma in patients with unilateral papillary thyroid microcarcinoma. Asian Pac J Cancer Prev 2015; 16:2947-51. [PMID: 25854387 DOI: 10.7314/apjcp.2015.16.7.2947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The phenomenon of occult carcinoma maybe observed in patients with clinically unilateral papillary thyroid microcarcinoma (PTMC). Although many studies have reported that the BRAFT1799A mutation is associated with aggressive PTMC, the relationship between BRAFT1799A mutation and occult carcinoma is unclear. The aim of this study was to investigate the risk factors, including BRAFT1799A mutation, for occult contralateral carcinoma in clinically unilateral PTMC accompanied by benign nodules in the contralateral lobe. MATERIALS AND METHODS From January 2011 to December 2013,we prospectively enrolled 89 consecutive PTMC patients with clinically unilateral carcinoma accompanied by benign nodules in the contralateral lobe who received a total thyroidectomy and cervical lymph node dissection. BRAFT1799A mutation was tested by pyrosequencing on postoperative paraffin specimens. The frequency and predictive factors for occult contralateral carcinoma were analyzed with respect to the following variables: age, gender, family history, tumor size, presence of Hashimoto thyroiditis, extrathyroidal extension, central lymph node metastasis, multifocality of primary tumor, or BRAFT1799A mutation. RESULTS A total of 36 patients (40.4%) had occult PTMC in the contralateral lobe. The median diameter of the occult tumors was 0.33±0.21 cm. The BRAFT1799A mutation was found in 38 cases (42.7%). According to the univariate analysis, there were no significant differences between the presence of occult contralateral carcinoma and age, gender, family history, tumor size, presence of Hashimoto thyroiditis, extrathyroidal extension, central lymph node metastasis, multifocality of primary tumor, or BRAFT1799A mutation. CONCLUSIONS Using current methods, it is difficult to preoperatively identify patients with PTMC, and further research is needed to determine predictive factors for the presence of occult contralateral carcinoma in patients with unilateral PTMC.
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Affiliation(s)
- Han-Feng Wan
- Department of Otorhinolaryngology, Renji Hospistal, School of Medicine, Shanghai Jiao Tong University, Shanghai, China E-mail :
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The Effectiveness of Radioactive Iodine Remnant Ablation for Papillary Thyroid Microcarcinoma: A Systematic Review and Meta-analysis. World J Surg 2015; 40:100-9. [DOI: 10.1007/s00268-015-3346-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
Radioiodine remnant ablation (RRA) is considered a safe and effective method for eliminating residual thyroid tissue, as well as microscopic disease if at all present in thyroid bed following thyroidectomy. The rationale of RRA is that in the absence of thyroid tissue, serum thyroglobulin (Tg) measurement can be used as an excellent tumor marker. Other considerations are like the presence of significant remnant thyroid tissue makes detection and treatment of nodal or distant metastases difficult. Rarely, microscopic disease in the thyroid bed if not ablated, in the future, could be a source of anaplastic transformation. On the other hand, microscopic tumor emboli in distant sites could be the cause of distant metastasis too. The ablation of remnant tissue would in all probability eliminate these theoretical risks. It may be noted that all these are unproven contentious issues except postablation serum Tg estimation that could be a good tumor marker for detecting early biochemical recurrence in long-term follow-up strategy. Radioactive iodine is administered as a form of “adjuvant therapy” for remnant ablation. There have been several reports with regard to the administered dose for remnant ablation. The first report of a prospective randomized clinical trial was published from India by a prospective randomized study conducted at the All India Institute of Medical Sciences, New Delhi in the year 1996. The study reported that increasing the empirical 131I initial dose to more than 50 mCi results in plateauing of the dose-response curve and thus, conventional high-dose remnant ablation needs critical evaluation. Recently, two important studies were published: One from French group and the other from UK on a similar line. Interestingly, all three studies conducted in three different geographical regions of the world showed exactly similar conclusion. The new era of low-dose remnant ablation has taken a firm scientific footing across the continents.
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Affiliation(s)
- Chandra Sekhar Bal
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ajit Kumar Padhy
- Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608, Singapore
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Abstract
Purpose of review The global incidence of small papillary thyroid carcinoma (PTC) is increasing remarkably, mostly due to the increased use of imaging studies worldwide. The issue of how to manage low-risk small PTC has become urgent. In this review, we focus on how to treat low-risk papillary thyroid microcarcinomas (PMCs; i.e., PTCs measuring ≤10 mm). Recent findings Studies of large numbers of patients with low-risk PMC clarified that most of the PMCs did not grow or grew very slowly and were harmless. Active observations of these patients discriminated rare progressive cases from the majority. Surgery performed after the detection of progression signs was not too late, and surgery immediately after the detection and diagnosis of low-risk PMC may be overtreatment for most patients. Interestingly, low-risk PMCs in elderly patients were most unlikely to progress, in sharp contrast to clinical PTC. The reason for this phenomenon remains unknown. Summary Active observation without immediate surgery can be a leading alternative to the classical surgical treatment in the majority of the patients with low-risk PMC. It is not too late to perform surgery after the detection of progression signs for these patients. Video abstract http://links.lww.com/COON/A10
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Bal C, Ballal S, Soundararajan R, Chopra S, Garg A. Radioiodine remnant ablation in low-risk differentiated thyroid cancer patients who had R0 dissection is an over treatment. Cancer Med 2015; 4:1031-8. [PMID: 25755077 PMCID: PMC4529341 DOI: 10.1002/cam4.443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 02/12/2015] [Accepted: 02/14/2015] [Indexed: 11/29/2022] Open
Abstract
Low-risk (LR) differentiated thyroid cancer (DTC) patients should be ablated or not, albeit, with small dose of radioiodine is highly controversial. We hypothesized that those LR DTC patients who were surgically ablated need no radioiodine remnant ablation (RRA). This study aims to evaluate the long-term outcome in these two groups of patients. Retrospective cohort study conducted from January 1991 to December 2012. Based on extent of surgical resection and histopathology, LR DTC patients were classified as Gr-1: 169 patients, who were surgically ablated; Gr-2: 153 patients, who had significant remnant in thyroid bed. Basal parameters were comparable between two groups except pretherapy 24 h radioiodine uptake (0.16 ± 0.01% vs. 5.64 ± 0.46%; P < 0.001). No patient received RRA in Gr-1; Gr-2 patients were administered 30 mCi (131) I. Total number of events (recurrence, persistent, and progression of disease), with median follow up of 10.3 years, was observed in 10/322 (3.1%) of LR DTC patients. Only one patient had disease recurrence from Gr-1, who became disease-free after radioiodine therapy. Similarly, one patient from 126, who was ablated with single dose of RRA, had recurrence from Gr-2. However, 8/27 (29.7%) patients from Gr-2 had persistent disease; even two of them subsequently developed disease progression, who failed first-dose of RRA. The event-free survival rates were 99.4% and 94.1% (P = 0.006) in Gr-1 and Gr-2, respectively. RRA is an overtreatment in surgically ablated LR DTC patients. Successfully ablated RRA patients also had similar long-term outcome, however, those who failed, should be re-stratified as intermediate-risk category, and managed aggressively.
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Affiliation(s)
- Chandrasekhar Bal
- Department of Nuclear Medicine, All India Institute of Medical SciencesNew Delhi, 110029, India
| | - Sanjana Ballal
- Department of Nuclear Medicine, All India Institute of Medical SciencesNew Delhi, 110029, India
| | - Ramya Soundararajan
- Department of Nuclear Medicine, All India Institute of Medical SciencesNew Delhi, 110029, India
| | - Saurav Chopra
- Medical Student, All India institute of Medical SciencesNew Delhi, 110029, India
| | - Aayushi Garg
- Medical Student, All India institute of Medical SciencesNew Delhi, 110029, India
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Woo CG, Sung CO, Choi YM, Kim WG, Kim TY, Shong YK, Kim WB, Hong SJ, Song DE. Clinicopathological Significance of Minimal Extrathyroid Extension in Solitary Papillary Thyroid Carcinomas. Ann Surg Oncol 2015; 22 Suppl 3:S728-33. [PMID: 26077913 PMCID: PMC4686556 DOI: 10.1245/s10434-015-4659-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Indexed: 11/18/2022]
Abstract
Background The definitive diagnosis of minimal extrathyroid extension (ETE) is subjective because a well-defined true capsule is absent in the thyroid gland. We subclassified the extent of minimal ETE and investigated the clinicopathological significance of the presence of minimal ETE in patients with solitary papillary thyroid carcinomas (PTCs) and solitary papillary thyroid microcarcinomas (PTMCs). Methods A series of 546 patients with solitary PTCs, including 144 patients with solitary PTMCs, were retrospectively analyzed. Whether the presence of minimal ETE had an effect on recurrence-free survival (RFS) along with other clinicopathological parameters was investigated. Results The only independent prognostic factor found to be associated with recurrence was the presence of LN metastasis in solitary PTC (p = 0.002) but not in solitary PTMC groups (p = 0.073). The presence of minimal ETE had no effect on RFS in both solitary PTC (p = 0.053) and solitary PTMC (p = 0.816).
Conclusions The presence of minimal ETE has no significant influence on RFS in solitary PTC and PTMC. There is a risk of overrepresenting the T3 category in solitary PTC and PTMC patients with minimal ETE. Electronic supplementary material The online version of this article (doi:10.1245/s10434-015-4659-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chang Gok Woo
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Ohk Sung
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yun Mi Choi
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Gu Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae Yong Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Kee Shong
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Bae Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suck Joon Hong
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong Eun Song
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Pyo JS, Sohn JH, Kang G, Kim DH, Yun J. Total surface area is useful for differentiating between aggressive and favorable multifocal papillary thyroid carcinomas. Yonsei Med J 2015; 56:355-61. [PMID: 25683981 PMCID: PMC4329344 DOI: 10.3349/ymj.2015.56.2.355] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
PURPOSE The purpose of the present study was to identify more useful parameters for predicting behaviors of multifocal papillary thyroid carcinoma (PTC). MATERIALS AND METHODS We investigated dominant tumor diameter (TD), total tumor diameter (TTD), and total surface area (TSA) in tumors from 588 patients and evaluated their usefulness as parameters for assessment of tumor behaviors in multifocal PTCs. RESULTS In 588 PTCs, tumor multifocality was found in 179 PTCs (30.4%). Multifocal tumors were significantly associated with extrathyroidal extension, lymph node metastasis, and higher tumor stage grouping (p<0.001, p<0.001, and p<0.001, respectively). The rates of nodal metastasis increased with greater TSA and TTD in PTCs. Multifocal papillary thyroid microcarcinomas (mPMCs) with TSA >3.14 cm² had higher rates of nodal metastasis than mPMCs with TSA ≤3.14 cm² (p=0.038); however, there was no significant difference between mPMCs with TTD >1.0 cm and with TTD ≤1.0 cm (p=0.325). In addition, nodal metastasis was more frequent in mPMCs with TSA >3.14 cm² than in unifocal papillary thyroid microcarcinomas (uPMCs) (TD ≤1.0 cm) (p=0.002), but not overt unifocal PTCs (TD >1.0 cm) (p=0.244). CONCLUSION Our results suggest that mPMCs with TSA >3.14 cm² show more aggressive behavior than uPMCs and mPMCs with TSA ≤3.14 cm². TSA could be useful in distinguishing aggressive mPMCs from favorable cases.
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Affiliation(s)
- Jung-Soo Pyo
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jin Hee Sohn
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Guhyun Kang
- Department of Pathology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Dong-Hoon Kim
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jisup Yun
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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Choi JS, Kim EK, Moon HJ, Kwak JY. Higher body mass index may be a predictor of extrathyroidal extension in patients with papillary thyroid microcarcinoma. Endocrine 2015; 48:264-71. [PMID: 24858734 DOI: 10.1007/s12020-014-0293-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/08/2014] [Indexed: 01/01/2023]
Abstract
Recently, higher body mass index (BMI) has been associated with aggressive pathologic features of papillary thyroid carcinoma. The aim of this study was to clarify the relationship between BMI and aggressive pathologic features of papillary thyroid microcarcinoma (PTMC) and to evaluate whether the BMI can be a prognostic factor of PTMC. This retrospective study included 612 PTMC patients who underwent surgical excision at a referral center between April 2006 and December 2007. Patients were grouped according to BMI (<25 or ≥25 kg/m2). Multivariable logistic regression analysis was performed to determine independent predictors of aggressive pathologic features (advanced stage, extrathyroidal extension, and lymph node metastasis), with adjustment for age, gender, tumor size, multifocality, thyroid stimulating hormone (TSH) level, and BMI (value/group). PTMC patients with a BMI≥25 kg/m2 showed significantly higher prevalences of extrathyroidal extension, advanced pathologic TNM stage, and male gender, compared to those of patients with a BMI<25 kg/m2. Lymph node metastasis and mean TSH level were not significantly different between the two BMI subgroups. In multivariable analysis, the BMI≥25 kg/m2 group was positively associated with the presence of extrathyroidal extension (adjusted odds ratio 1.49, P=0.05). Higher BMI was associated with extrathyroidal extension in PTMC patients. This study suggests that the BMI could be considered as a prognostic factor for predicting the presence of extrathyroidal extension and it may help decide the appropriate surgical extent for PTMC patients.
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Affiliation(s)
- Ji Soo Choi
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Korea
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Assessment of recurrence rates in papillary thyroid microcarcinoma patients with and without histopathological risk factors after radioiodine ablation treatment. Nucl Med Commun 2015; 36:109-13. [DOI: 10.1097/mnm.0000000000000230] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lobectomy and prophylactic central neck dissection for papillary thyroid microcarcinoma: do involved lymph nodes mandate completion thyroidectomy? World J Surg 2014; 38:872-7. [PMID: 24305923 DOI: 10.1007/s00268-013-2348-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND The present study was designed to investigate the necessity of completion thyroidectomy for patients who underwent thyroid lobectomy for low-risk papillary thyroid microcarcinoma (PTMC) that was later pathologically diagnosed as central lymph node (CLN) metastasis. METHODS Between 1986 and 2001, we assessed 551 patients who underwent thyroidectomy with prophylactic ipsilateral central compartment neck dissection, and 409 patients were followed-up completely. Thyroid lobectomy were performed in 281 and 128 patients, respectively. The patients were divided into two groups according to CLN metastasis. Clinicopathological profiles and follow-up details were investigated by retrospective chart review. RESULTS The CLN-positive and -negative groups were comprised of 43 (15.2 %) and 238 patients (84.8 %), respectively. The mean ages of the two groups were not significantly different (p > 0.05). The mean tumor size of the CLN-positive group (6.8 mm) was significantly larger than that of the CLN-negative group (5.6 mm; p < 0.05). Microscopic capsular invasion was significantly higher in the CLN-positive group (51.2 vs. 23.9 %; p < 0.05). Overall, 21 patients (7.4 %, 21/281) experienced recurrence. Among these, 2 (4.7 %, 2/43) and 19 (8.0 %, 19/238) were in the CLN-positive and -negative groups, respectively. There was no significant correlation between CLN metastasis and tumor recurrence. CONCLUSIONS Postoperative recurrence was lower in the CLN-positive group, and there was no significant correlation between CLN metastasis and tumor recurrence. Our results suggest that it is not necessary to perform completion thyroidectomy for PTMC patients who have undergone thyroid lobectomy and who have been pathologically diagnosed with CLN metastasis.
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Lymph node metastasis in thyroid papillary microcarcinoma: a study of 170 patients. The Journal of Laryngology & Otology 2014; 128:922-5. [PMID: 25226511 DOI: 10.1017/s0022215114001704] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Papillary microcarcinoma of the thyroid has been described as either a normal variant or a serious malignancy. We describe our experience with papillary microcarcinoma and lymph node metastases. METHOD A total of 685 consecutive total thyroidectomies with central compartment neck dissection were reviewed for papillary microcarcinoma. Association of central compartment lymph node metastases with age, gender, tumour multifocality, bilaterality and extrathyroidal extension was analysed. RESULTS Out of 170 papillary microcarcinoma cases, multifocality was found in 72 (42.4 per cent), bilaterality in 49 (28.8 per cent) and extrathyroidal extension in 16 (9.4 per cent). In all, 23 patients (13.5 per cent) had lymph node metastases. There was a significant association (p < 0.05) between extrathyroidal extension (but no other tumour characteristics) and lymph node metastases. CONCLUSION In all, 13.5 per cent of papillary microcarcinomas in our series showed lymph node metastases. Lymph node metastases were associated with extrathyroidal invasion of the papillary microcarcinoma.
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Perros P, Boelaert K, Colley S, Evans C, Evans RM, Gerrard Ba G, Gilbert J, Harrison B, Johnson SJ, Giles TE, Moss L, Lewington V, Newbold K, Taylor J, Thakker RV, Watkinson J, Williams GR. Guidelines for the management of thyroid cancer. Clin Endocrinol (Oxf) 2014; 81 Suppl 1:1-122. [PMID: 24989897 DOI: 10.1111/cen.12515] [Citation(s) in RCA: 714] [Impact Index Per Article: 71.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Petros Perros
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle-upon-Tyne
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Implication of minimal extrathyroidal extension as a prognostic factor in papillary thyroid carcinoma. Int J Surg 2013; 11:944-7. [DOI: 10.1016/j.ijsu.2013.06.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 06/10/2013] [Accepted: 06/20/2013] [Indexed: 11/23/2022]
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Lee J, Park JH, Lee CR, Chung WY, Park CS. Long-term outcomes of total thyroidectomy versus thyroid lobectomy for papillary thyroid microcarcinoma: comparative analysis after propensity score matching. Thyroid 2013; 23:1408-15. [PMID: 23509895 DOI: 10.1089/thy.2012.0463] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIMS The objectives of this study were to compare long-term outcomes after total thyroidectomy (TT) or thyroid lobectomy (LT) in a large cohort of patients with papillary thyroid microcarcinoma (PTMC), and to determine whether tumor size (≤0.5 cm vs. >0.5 cm) has a significant impact on the extent of surgery. METHODS We evaluated 2014 patients with PTMC who underwent TT with central compartment node dissection (CCND; n = 1015) or LT with CCND (n = 999) between March 1986 and December 2006 and for whom complete follow-up data were available for at least 5 years (median 11.8 years, range 5-26 years). Using propensity score matching to reduce the impact of treatment selection bias and potential confounding in an observational study, we compared overall survival and disease-free survival in the overall cohort and in patients with tumors ≤0.5 cm and >0.5 cm in size. RESULTS After adjustment for differences in baseline clinicopathologic risk factors, we observed no significant differences between the LT and the TT groups in the risk of death (hazard ratio for the LT group 1.05, 95% confidence interval [CI] 0.71-1.47, p = 0.890) and locoregional recurrence (hazard ratio for the LT group 3.08 [CI 1.99-8.05], p = 0.194) in the overall matched cohort. Similar results were observed when we compared LT and TT in patients with tumors ≤0.5 cm and >0.5 cm. CONCLUSIONS The long-term rates of death and locoregional recurrence were similar in patients with PTMC who underwent LT with CCND and those who underwent TT with CCND. Therefore, completion thyroidectomy may not be recommended unless recurrence after LT is definitely detected in low-risk PTMC patients, and close follow-up is adequate in these patients. Moreover, tumor size greater than or less than 0.5 cm was not a significant determinant of the extent of surgery in patients with PTMC.
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Affiliation(s)
- Jandee Lee
- 1 Department of Surgery, Eulji University College of Medicine , Seoul, Korea
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Pelizzo MR, Rubello D, Bernardi C, Gemo G, Bertazza L, Schievano E, Fedeli U. Thyroid surgical practices shaping thyroid cancer incidence in North-Eastern Italy. Biomed Pharmacother 2013; 68:39-43. [PMID: 24184200 DOI: 10.1016/j.biopha.2013.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 10/02/2013] [Indexed: 11/27/2022] Open
Abstract
AIM To investigate the effects of changing surgical practices on thyroid cancer incidence in the Veneto Region (North-Eastern Italy). METHODS Hospital discharge records of the period 2000-2010 were analyzed to detect trends in thyroid surgery rates by type of surgery and diagnosis. The association between surgery rates for benign and malignant diseases across the 21 Local Health Units (LHUs) was assessed by Poisson regression. In a second step, clinical and pathological charts of the year 2010 were retrieved from the larger regional surgical center. The proportions of total and incidental papillary thyroid micro carcinoma (PTMC) were compared with historical data. Factors influencing an incidental diagnosis of PTMC were analyzed by logistic regression. RESULTS Among 26,000 procedures performed in the Region, there was an increase with time in the proportion of total thyroidectomies (from 67% to 78%) and surgeries with a diagnosis of thyroid cancer (from 17% to 28%). Cancer surgery rates across LHUs resulted associated to surgery rates for benign diseases (P<0.001). In the largest regional center, the proportion of PTMC increased from 35% to 56%, of whom almost 60% were incidental cases. The probability of finding an incidental PTMC was higher in total thyroidectomies than in other procedures (odds ratio=1.84, 95% confidence interval 1.08-3.14). CONCLUSION Data from the Veneto Region suggest that the increase in PTMC is due to several factors: increased preoperative diagnosis, total gland removal, extensive histological examination. Moreover, geographical variations in cancer incidence were associated to surgery rates for benign diseases.
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Affiliation(s)
- Maria Rosa Pelizzo
- Department of Special Surgical Pathology, University of Padova, Padova, Italy
| | | | - Chiara Bernardi
- Department of Special Surgical Pathology, University of Padova, Padova, Italy
| | - Giancarlo Gemo
- Department of Special Surgical Pathology, University of Padova, Padova, Italy
| | - Loris Bertazza
- Department of Special Surgical Pathology, University of Padova, Padova, Italy
| | - Elena Schievano
- SER-Epidemiological Department, Veneto Region, Padova, Italy
| | - Ugo Fedeli
- SER-Epidemiological Department, Veneto Region, Padova, Italy
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Gallicchio R, Giacomobono S, Capacchione D, Nardelli A, Barbato F, Nappi A, Pellegrino T, Storto G. Should patients with remnants from thyroid microcarcinoma really not be treated with iodine-131 ablation? Endocrine 2013; 44:426-33. [PMID: 23536285 DOI: 10.1007/s12020-013-9935-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 03/20/2013] [Indexed: 11/27/2022]
Abstract
UNLABELLED Remnant ablation by radioiodine is generally not recommended in patients presenting uni- or multifocal cancer <1 cm, in the absence of other higher risk features. We retrospectively studied low-risk patients (pts) with differentiated thyroid cancer (DTC) less than 1 cm recruited for radioiodine therapy (RAI). METHODS 91 pts (79 women, age 48.4 ± 12 yrs) with DTC were enrolled for RAI. Patients underwent pre-therapy ultrasonography (US), those with suspected/ambiguous lymph-nodes were excluded and proposed for cytology. Treated pts underwent post-therapeutic whole body scan (WBSt) completed by neck/chest SPECT/CT, when necessary (e.g. evidence of uptake outside of thyroid bed). A target lesion on SPECT/CT was defined as an identifiable lymph-nodal site presenting a matched significant iodine uptake. The patients were followed up for 14 ± 2 months thereafter. RESULTS All pts/cancers were pT1. The mean histological diameter was 0.68 ± 0.23 cm. Six patients were excluded because of suspected nodal involvement at US. Thirty (35 %) out of 85 pts had suspicious WBSt as per lymph-nodal involvement which was confirmed at the subsequent SPECT/CT acquisition in most part of pts (26/30; 86 %). Overall detected target lesions was 34, and nine (26 %) had interim positive fine needle cytology. CONCLUSIONS a significant part of low risk DTC patients, for whom RAI is not recommended, presents an incidental suspicion of lymph-nodal involvement at WBSt confirmed by subsequent SPECT/CT. Such setting would have not been treated by I-131.
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Affiliation(s)
- Rosj Gallicchio
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Centro di Riferimento Oncologico di Basilicata (CROB), Via P. Pio 1, 85028, Rionero in Vulture, Italy
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Londero SC, Krogdahl A, Bastholt L, Overgaard J, Trolle W, Pedersen HB, Bentzen J, Schytte S, Christiansen P, Godballe C. Papillary thyroid microcarcinoma in Denmark 1996-2008: a national study of epidemiology and clinical significance. Thyroid 2013; 23:1159-64. [PMID: 23427917 DOI: 10.1089/thy.2012.0595] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND With an observed general rise in papillary thyroid carcinoma incidence, papillary microcarcinoma (PMC) is accordingly found more frequently and often incidentally by histological examination of surgical specimens from presumed benign thyroid disease. Only a few studies have specifically addressed the prognosis of incidentally found PMC, and they have been limited to retrospective single-center studies. METHODS This was a national, unselected, prospective cohort study of 406 papillary thyroid microcarcinoma patients diagnosed in Denmark from 1996 to 2008. OBJECTIVE The aim of this study was to evaluate incidence, outcome, and extent of necessary treatment, with special attention given to incidentally detected PMC. RESULTS Age-standardized ratios were found to increase from 0.35 per 100,000 per year in 1996 to 0.74 per 100,000 per year in 2008. A total of 240 out of 406 cases were found incidentally, and a significant rise in incidence was only found for the incidental cases. Median follow-up was 7.6 years for the incidental cases, and in this time span, five cases of recurrence and no deaths from thyroid cancer occurred. The five-year recurrence-free survival was 98.1%, and only occurrence of lymph-node metastasis was found to affect the recurrence rate. A total of 160 incidental cases were initially treated with lobectomy, and the incidence of recurrence was not significantly different in the cases receiving completion thyroidectomy. CONCLUSION The rising incidence of PMC in Denmark is explained by incidental cases. When the carcinoma is not the index tumor for surgery, this study implies that completion thyroidectomy does not improve prognosis.
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Treatment for papillary thyroid microcarcinoma. Contemp Oncol (Pozn) 2013; 17:20-3. [PMID: 23788956 PMCID: PMC3685358 DOI: 10.5114/wo.2013.33769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 10/02/2012] [Accepted: 01/21/2013] [Indexed: 11/25/2022] Open
Abstract
Aim of the study The treatment for papillary thyroid microcarcinoma (PTMC), which is a tumor measuring less than 1 cm, is still a subject of controversy. The aim of this study is to retrospectively evaluate the patients diagnosed with PTMC in terms of their clinical and histopathological features. Material and methods A total of 153 consecutive patients with PTMC were treated, and their clinical and histopathological characteristics were reviewed. The tumor diameter was observed to range from 1.0 mm to 10 mm (mean of 5.8 mm). Histologically, 138 (90.2%) cases of classical papillary carcinoma and 15 (9.8%) cases of the follicular variant were noted. Multicentric tumors were found in 37 (24.2%) patients, of whom 12 (7.8%) had more than one PTMC on the same side and 25 (16.3%) displayed bilateral PTMC. Results The proportions of capsular invasion and lymph node metastasis were 11.8% (18/153) and 48.1% (39/81), respectively. One patient showed distant metastasis during follow-up and died fifteen months after the operation. PTMC showed a high incidence of multifocality and lymph node metastasis in the level VI central compartment. The optimal surgical strategy for PTMC was total thyroidectomy and central compartment node dissection. Conclusions Frozen tissue sections should be made for the prompt diagnosis of PTMC in all the thyroid nodules, except when the malignant diagnosis was already confirmed by cytology.
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Efficacy of thyroid ultrasound elastography in differential diagnosis of small thyroid nodules. Eur J Radiol 2013; 82:e274-80. [DOI: 10.1016/j.ejrad.2013.01.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 12/01/2012] [Accepted: 01/09/2013] [Indexed: 11/23/2022]
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Kim HJ, Kim NK, Choi JH, Kim SW, Jin SM, Suh S, Bae JC, Min YK, Chung JH, Kim SW. Radioactive iodine ablation does not prevent recurrences in patients with papillary thyroid microcarcinoma. Clin Endocrinol (Oxf) 2013; 78:614-20. [PMID: 22957654 DOI: 10.1111/cen.12034] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 08/04/2012] [Accepted: 09/03/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Although papillary thyroid microcarcinoma (PTMC) has a favourable long-term prognosis, disease recurrence after initial treatment remains a problem and controversy exists regarding the role of radioactive iodine (RAI) ablation in PTMC. We performed this study to evaluate the effect of RAI ablation on disease recurrence in patients with PTMC. PATIENTS AND METHODS Between 1994 and 2004, 2579 patients underwent thyroid surgery for thyroid cancer at Samsung Medical Center. Among these patients, 704 patients with PTMC presumed disease-free after initial treatment were followed up for disease recurrence (median, 64 months; range, 1-185 months). Patients with PTMC with microscopic extrathyroidal extension, cervical lymph node metastases or multifocality were considered to be in the intermediate-risk group for recurrence. RESULTS Disease recurrence was found in six patients at a median of 29 months (range, 10-70 months) after initial treatment; all six patients with recurrent tumours had received RAI treatment after total thyroidectomy. Disease-related mortality was not observed, even after recurrence. Based on a Cox regression model considering the standardized inverse probability of treatment weight (IPTW) within each propensity score stratum of patients with a similar likelihood of having received RAI ablation, the likelihood ratio for recurrence did not differ between the RAI ablation group and no RAI group (P = 0·17). When we performed a subgroup analysis considering only patients with PTMC at intermediate-risk for recurrence, RAI ablation again did not have a significant effect on recurrence (P = 0·79). CONCLUSIONS Radioactive iodine ablation after total thyroidectomy in low- and intermediate-risk patients with PTMC did not prevent recurrent tumours. Future randomized, controlled, multicenter prospective trials involving a larger sample of patients followed-up for a longer duration are warranted to confirm our findings.
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Affiliation(s)
- Hye Jeong Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Aspinall SR, Ong SG, Wilson MS, Lennard TW. How shall we manage the incidentally found thyroid nodule? Surgeon 2013; 11:96-104. [DOI: 10.1016/j.surge.2012.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 08/06/2012] [Accepted: 11/21/2012] [Indexed: 11/26/2022]
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The Ki-67/MIB-1 index level and recurrence of papillary thyroid carcinoma. Med Hypotheses 2013; 80:311-4. [DOI: 10.1016/j.mehy.2012.12.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 12/10/2012] [Accepted: 12/13/2012] [Indexed: 11/18/2022]
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Hong YR, Wu YL, Luo ZY, Wu NB, Liu XM. Impact of nodular size on the predictive values of gray-scale, color-Doppler ultrasound, and sonoelastography for assessment of thyroid nodules. J Zhejiang Univ Sci B 2013; 13:707-16. [PMID: 22949361 DOI: 10.1631/jzus.b1100342] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To define the roles of gray-scale, color-Doppler ultrasound, and sonoelastography for the assessment of thyroid nodule to determine whether nodule size affects the differential diagnosis of benign and malignant. METHODS A total of 243 consecutive subjects (214 women, 29 men) with 329 thyroid nodules were examined by gray-scale, color-Doppler ultrasound, and sonoelastography in this prospective study. All patients underwent surgery and the final diagnosis was obtained from histopathological examination. RESULTS Three hundred and twenty-nine nodules (208 benign, 121 malignant) were divided into small (SNs, 5-10 mm, n=137) and large (LNs, >10 mm, n=192) nodules. Microcalcifications were more frequent in malignant LNs than in malignant SNs, but showed no significant difference between benign LNs and SNs. Poorly-circumscribed margins were not significantly different between malignant SNs and LNs, but were less frequent in benign LNs than in benign SNs. Among all nodules, marked intranodular vascularity was more frequent in LNs than in SNs. By comparison, shape ratio of anteroposterior to transverse dimensions (A/T) ≥ 1 was less frequent in LNs than in SNs. Otherwise, among all nodules, marked hypoechogenicity and elasticity score of 4-6 showed no significant difference between LNs and SNs. CONCLUSIONS The predictive values of microcalcifications, nodular margins, A/T ratio, and marked intranodular vascularity depend on nodule size, but the predictive values of echogenicity and elastography do not.
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Affiliation(s)
- Yu-rong Hong
- Department of Ultrasound, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
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Virk RK, Van Dyke AL, Finkelstein A, Prasad A, Gibson J, Hui P, Theoharis CG, Carling T, Roman SA, Sosa JA, Udelsman R, Prasad ML. BRAFV600E mutation in papillary thyroid microcarcinoma: a genotype-phenotype correlation. Mod Pathol 2013; 26:62-70. [PMID: 22918165 DOI: 10.1038/modpathol.2012.152] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BRAF(V600E) mutation has emerged as a marker of aggressive behavior in papillary thyroid carcinoma but its significance in microcarcinoma is not entirely clear. One-hundred and twenty-nine papillary thyroid microcarcinomas were tested for BRAF(V600E) mutation by single-strand conformation polymorphism, and their clinicopathologic features (age, sex, tumor size, multifocality, nodal metastases, histologic subtype, tumor cell morphology, architecture, tumor-associated stromal reaction, tumor interface to non-neoplastic thyroid (well circumscribed vs infiltrative), extrathyroidal extension, lymphovascular invasion, intratumoral multinucleated giant cells, and adjacent non-neoplastic thyroid pathology) were examined. Compared with tumors without the mutation (39/129, 30%), the mutated microcarcinomas (90/129, 70%) showed significantly higher prevalence of infiltrative tumor borders (78/90 vs 23/39, P=0.001), tumor-associated stromal desmoplasia/fibrosis and/or sclerosis (80/90 vs 25/39, P=0.002), classic nuclear features of papillary thyroid carcinoma (90/90 vs 35/39, P=0.008) and cystic change (43/90 vs 11/39, P=0.05). BRAF(V600E) mutation was more frequent in classic (75%), tall cell (91%), and other variants (>70%) than in follicular variant (21%) of papillary thyroid microcarcinoma. Tumors without the mutation were significantly more likely to be solid, well circumscribed, and lacked desmoplasia/fibrosis or sclerosis. However, on multivariate analysis, only the follicular variant of papillary microcarcinoma was significantly associated with the absence of mutation (odds ratio (95% confidence interval): 0.09 (0.01-0.54)). Lymph node metastases (n=24) were more frequent in microcarcinomas with mutation than without (21/24 vs 3/24, P=0.02). All patients with lateral cervical node metastasis (n=9), and all but one tumor with extrathyroidal extension (n=17/18) showed BRAF(V600E) mutation. No significant differences were noted in age, sex, tumor size, multifocality, lymphovascular invasion, psammoma bodies, stromal calcification, intratumoral multinucleated osteoclastic-type giant cells, and lymphocytic infiltration between the two groups of tumors. BRAF(V600E) mutation is an early event in thyroid carcinogenesis, and is associated with distinctive morphology and aggressive features even in papillary thyroid microcarcinomas.
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Affiliation(s)
- Renu K Virk
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
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Kim WJ, Bae MJ, Yi YS, Jeon YK, Kim SS, Kim BH, Kim IJ. Clinicopathologic Characteristics of Papillary Microcarcinoma in the Elderly. ACTA ACUST UNITED AC 2013. [DOI: 10.11106/jkta.2013.6.1.69] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Won Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Min Jung Bae
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Yang Seon Yi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Yun Kyung Jeon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Sang Soo Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Bo Hyun Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - In Joo Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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Wang Y, Li L, Wang YXJ, Feng XL, Zhao F, Zou SM, Hao YZ, Ying JM, Zhou CW. Ultrasound findings of papillary thyroid microcarcinoma: a review of 113 consecutive cases with histopathologic correlation. ULTRASOUND IN MEDICINE & BIOLOGY 2012; 38:1681-1688. [PMID: 22920548 DOI: 10.1016/j.ultrasmedbio.2012.05.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 05/24/2012] [Accepted: 05/24/2012] [Indexed: 06/01/2023]
Abstract
Papillary thyroid microcarcinoma (PTMC) is a malignant thyroid tumor of less than 1 cm in size. Ultrasound (US) is the preferred imaging modality for PTMC. This study retrospectively evaluated the US results from 113 consecutive cases of PTMC with 127 nodules and correlated the results with the histopathologic findings. The results showed none of the PTMC nodules had a cystic element. Half of the PTMC nodules had a well-defined boundary and the remaining half had an ill-defined boundary. A percent (6.3%) of the nodules had a halo sign. Microcalcification was present in approximately half of the PTMC nodules. The cancerous tissue with a papillary structure was hypoechogenic and the amount of fibrous stroma determined whether the nodule echogenicity was heterogeneous or homogeneous. Heterogeneous echogenicity was associated with a fibrous stroma proportion of >20%. Only PTMC nodules with predominantly follicular structures containing a large proportion of colloid demonstrated isoechogenicity. Well-defined boundaries on US were associated with well-defined histologic margins, with or without the presence of an intact fibrous pseudo-capsule. A halo sign with a well-defined boundary detected by US was associated with the presence of an intact fibrous pseudo-capsule. Half of the PTMC nodules with ill-defined boundaries exhibited infiltration into the surrounding thyroid tissue, while the remaining half of the PTMC nodules with ill-defined boundaries on US presented irregular nodule margins by histology, rather than nodule infiltration. Psammoma bodies detected at a frequency ≥5 per ×200 microscopic field of view were detectable on US as microcalcifications.
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Affiliation(s)
- Yong Wang
- Department of Diagnostic Imaging, Cancer Hospital and Institute, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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