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Janiak MK, Kamiński G. Thyroid Cancer in Regions Most Contaminated after the Chernobyl Disaster. J Biomed Phys Eng 2024; 14:299-308. [PMID: 39027710 PMCID: PMC11252555 DOI: 10.31661/jbpe.v0i0.2402-1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/13/2024] [Indexed: 07/20/2024]
Abstract
Exposure to ionizing radiation, especially during childhood, is a well-established risk factor for thyroid cancer. Following the 1986 Chernobyl nuclear power plant accident the total number of cases of thyroid cancer registered between 1991 and 2015 in males and females who were less than 18 years old exceeded 19,000 (in Belarus and Ukraine, and in the most contaminated oblasts of the Russian Federation). However, as indicated by the United Nations Scientific Committee on the Effects of Atomic Radiation the fraction of the incidence of thyroid cancer attributable to radiation exposure among the non-evacuated residents of the contaminated regions of Belarus, Ukraine and Russia is of the order of 0.25. Apparently, the increased registration of thyroid neoplasms in the parts of these countries is a classical 'screening effect', i.e., massive diagnostic examinations of the risk-aware populations performed with modern eqipment resulting in detection of many occult neoplasms (incidentalomas). Moreover, one type of thyroid cancer previously called 'encapsulated follicular variant of papillary thyroid carcinoma' is non-invasive and instead of 'carcinoma' should now be recognized as 'noninvasive follicular thyroid neoplasm with papillary-like nuclear features.' Other potential causes of overdiagnosing of thyroid tumors include increase of the spontaneous incidence rate of this disease with age, iodine deficiency among children from Belarus, Russia and Ukraine, and/or consumption by these children of drinking water containing high levels of nitrates that likely coincides with the carcinogenic effect of radiation on the thyroid gland.
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Affiliation(s)
- Marek K Janiak
- Professor Emeritus, Former Head of the Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | - Grzegorz Kamiński
- Head of the Department of Endocrinology and Radioisotope Therapy, Military Institute of Medicine, Warsaw, Poland
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Zhu F, Zhu L, Shen Y, Li F, Xie X, Wu Y. Differences in the clinical characteristics of papillary thyroid microcarcinoma located in the isthmus ≤5 mm and >5mm in diameter. Front Oncol 2022; 12:923266. [PMID: 35978829 PMCID: PMC9376609 DOI: 10.3389/fonc.2022.923266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background The optimal treatment of papillary thyroid microcarcinomas (PTMCs) located in the isthmus (iPTMCs) is still controversial. The purpose of this study was to compare the clinicopathologic features of patients with iPTMCs ≤5 mm and >5 mm in diameter after total thyroidectomy, and to identify the risk factors for recurrence in patients with iPTMCs. Methods A total of 102 iPTMC patients who underwent total thyroidectomy were reviewed retrospectively. The clinicopathologic characteristics of iPTMCs ≤5 mm group (n = 29) have been compared with a group >5 mm (n = 73). Univariate and multivariate Cox proportional hazard models served to identify risk factors associated with recurrence-free survival (RFS). Results Gender (p = 0.033), multifocality (p = 0.041), and central lymph node metastasis (CLNM) (p = 0.009) of patients in the ≤5 mm and >5 mm groups differed significantly. iPTMC patients with age <55 years, male, multiple tumor, and extrathyroidal extension showed comparatively more frequent of CLNM in >5 mm groups. Of the 102 patients, nine (8.8%) developed recurrence during follow-up (median: 49.5 months). The patients with recurrences had comparatively high rates of CLNM (p = 0.038), extranodal invasion (p = 0.018), and more MNCND (Metastasis Nodes for Central Neck dissection) (p = 0.020). A cutoff of MNCND >2.46 was established as the most sensitive and specific level for the prediction of recurrence based on receiver operating characteristic (ROC) curve analyses. Multivariate analysis showed that the number of MNCND ≥3 was an independent predictor of poor RFS (p = 0.028). Conclusion We have found that the recurrence rates are similar in patients with iPTMCs ≤5 mm and >5 mm. The iPTMCs >5 mm were more likely to be associated with pathological features such as multifocality and CLNM. The male gender, extrathyroidal extension, and CLNM were associated with recurrence of iPTMCs except for tumor size and multifocality. Higher risk of CLNM should be considered in iPTMC >5 mm when it reaches some risk factors. The numbers of MNCND ≥3 may be an independent predictor for recurrence, which could help clinicians for the decision of radioiodine administration and the modulation of follow-up modalities.
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Tagliabue M, Giugliano G, Mariani MC, Rubino M, Grosso E, Chu F, Calastri A, Maffini FA, Mauri G, De Fiori E, Manzoni MF, Ansarin M. Prevalence of Central Compartment Lymph Node Metastases in Papillary Thyroid Micro-Carcinoma: A Retrospective Evaluation of Predictive Preoperative Features. Cancers (Basel) 2021; 13:cancers13236028. [PMID: 34885138 PMCID: PMC8656465 DOI: 10.3390/cancers13236028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/21/2021] [Accepted: 11/28/2021] [Indexed: 12/04/2022] Open
Abstract
Simple Summary The present study focused on patients affected by stage pT1a papillary thyroid micro-carcinomas that were treated with surgery and central lymph node dissection. In this study, male sex, low age, and sub-capsular carcinoma localization resulted as independent predictive factors for central lymph node metastases. Abstract Papillary thyroid micro-carcinomas are considered relatively indolent carcinomas, often occult and incidental, with good prognosis and favorable outcomes. Despite these findings, central lymph node metastases are common, and are related to a poor prognosis for the patient. We performed a retrospective analysis on patients treated with surgery for stage pT1a papillary thyroid micro-carcinomas. One hundred ninety-five patients were included in the analyses. The presence of central lymph node metastases was identified and studied. A multivariate analysis employing binary logistic regression was used to calculate adjusted odds ratios with 95% confidence intervals of possible central lymph node metastases risk factors. In the performed multivariate analysis, male gender, younger age, and histopathological characteristics, such as a tumor sub-capsular localization, were significantly associated with central lymph node metastases in pT1a patients. Central compartment lymph node metastases are present in a non-negligible number of cases in patients with papillary thyroid micro-carcinoma undergoing surgical resection. Studying these factors could be an effective tool for predicting patients’ central lymph node metastases in papillary thyroid micro-carcinomas, defining a tailored surgical treatment in the future.
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Affiliation(s)
- Marta Tagliabue
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Gioacchino Giugliano
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
| | - Maria Cecilia Mariani
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
| | - Manila Rubino
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy;
| | - Enrica Grosso
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
| | - Francesco Chu
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
| | - Anna Calastri
- Department of Otorhinolaryngology, Fondazione IRCCS, Policlinico San Matteo, 27100 Pavia, Italy;
| | | | - Giovanni Mauri
- Department of Oncology and Hematology-Oncology, University of Milan, 20122 Milan, Italy
- Division of Interventional Radiology, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy
- Correspondence:
| | - Elvio De Fiori
- Department of Radiology, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy;
| | - Marco Federico Manzoni
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
- Institute of Endocrine and Metabolic Sciences, San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Mohssen Ansarin
- Division of Otolaryngology and Head and Neck Surgery, European Institute of Oncology (IEO) IRCCS, 20141 Milan, Italy; (M.T.); (G.G.); (M.C.M.); (E.G.); (F.C.); (M.F.M.); (M.A.)
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Ferrari SM, Fallahi P, Elia G, Ragusa F, Ruffilli I, Paparo SR, Antonelli A. Thyroid autoimmune disorders and cancer. Semin Cancer Biol 2020; 64:135-146. [DOI: 10.1016/j.semcancer.2019.05.019] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 12/18/2022]
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Zalzali M, Debreuve A, Richard C, Filieri C, Schvartz C. Micropapillary carcinoma: Description and rise in incidence in the French Marne-Ardennes thyroid cancer registry. ANNALES D'ENDOCRINOLOGIE 2019; 80:229-233. [DOI: 10.1016/j.ando.2019.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/23/2019] [Accepted: 06/20/2019] [Indexed: 12/25/2022]
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Vita R, Ieni A, Tuccari G, Benvenga S. The increasing prevalence of chronic lymphocytic thyroiditis in papillary microcarcinoma. Rev Endocr Metab Disord 2018; 19:301-309. [PMID: 30456477 DOI: 10.1007/s11154-018-9474-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although the incidence of some malignancy has decreased over the recent years, this is not the case of papillary thyroid microcarcinoma (PTMC), whose incidence has increased worldwide. Most PTMC are found incidentally after histological examination of specimens from surgery for benign thyroid disease. Hashimoto's thyroiditis, whose incidence has also increased, coexists in about one in three PTMC patients. Three different mechanisms have been proposed to clarify the association between chronic lymphocytic thyroiditis and PTMC, namely tumor development/growth by: (i) TSH stimulation, (ii) expression of certain proto-oncogenes, (iii) chemokines and other molecules produced by the lymphocytic infiltrate. Whether Hashimoto's thyroiditis protects against lymph node metastasis is debated. Overall, autommune thyroiditis seems to contribute to the favorable prognosis of PTMC. Major limitations of the studies so far performed include: (i) retrospective design, (ii) limited statistical power, (iii) high risk of selection bias, (iv) and predominant Asian ethnicity of patients. Full genetic profiling of both diseases and identification of environmental factors capable to trigger them, as well as well-powered prospective studies on different ethnical groups, may help understand their causal association and why their frequencies are continuing raising.
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Affiliation(s)
- Roberto Vita
- Department of Clinical and Experimental Medicine, University of Messina, Viale Gazzi, 98125, Messina, Italy
| | - Antonio Ieni
- Department of Human Pathology of Adult and Evolutive Age "Gaetano Barresi"-Section of Pathological Anatomy, University of Messina, Viale Gazzi, 98125, Messina, Italy
| | - Giovanni Tuccari
- Department of Human Pathology of Adult and Evolutive Age "Gaetano Barresi"-Section of Pathological Anatomy, University of Messina, Viale Gazzi, 98125, Messina, Italy
| | - Salvatore Benvenga
- Department of Clinical and Experimental Medicine, University of Messina, Viale Gazzi, 98125, Messina, Italy.
- Master Program on Childhood, Adolescent and Women's Endocrine Health, University of Messina, Viale Gazzi, 98125, Messina, Italy.
- Interdepartmental Program of Molecular & Clinical Endocrinology and Women's Endocrine Health, University Hospital, A.O.U. Policlinico G. Martino, Viale Gazzi, 98125, Messina, Italy.
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Slijepcevic N, Zivaljevic V, Diklic A, Jovanovic M, Oluic B, Paunovic I. Risk factors associated with intrathyroid extension of thyroid microcarcinomas. Langenbecks Arch Surg 2018; 403:615-622. [PMID: 29770856 DOI: 10.1007/s00423-018-1680-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 05/07/2018] [Indexed: 10/16/2022]
Abstract
PURPOSE The aims of this study were to investigate the rate of intrathyroid extension of papillary thyroid microcarcinoma (PTMC) in patients operated for benign thyroid disease and to identify independent risk factors associated with it. METHODS A retrospective study of 301 patients operated for benign thyroid diseases (hyperthyroid diseases, multinodular goitre, Hashimoto thyroiditis and benign thyroid tumours) was performed at a high-volume endocrine surgery unit of a tertiary referral academic hospital, in a 5-year period. These patients had a PTMC incidentally discovered on definite histopathological findings following total or near-total thyroidectomy. Since distinguishing between intrathyroid extension of PTMC as the result of intrathyroid dissemination or as the result of multicentricity is challenging, we observed them together as multifocality. In statistical analysis, we used standard descriptive statistics and univariate and multivariate logistic regression analysis to determine independent risk factors associated with multifocality. RESULTS In our study, there were 85.4% females and 14.6% males with a median age of 54 years. A multinodular goitre (32.5%) was the most common indication for an operation. Most patients (68.4%) had a PTMC that was 5 mm or smaller. The most frequent histological variants of PTMC were the follicular variant (52.8%), followed by the papillary variant (22.6%) and the mixed follicular-papillary variant (18.6%). A multifocal PTMC was present in 26.6% of cases. An independent protective factor for multifocality of PTMC was a thyroid gland that weighed more than 38 g (OR 0.55, 95% CI 0.31-0.97, p = 0.039). Size of PTMC greater than 5 mm was an independent risk factor for a multifocal PTMC (OR 3.26, 95% CI 1.85-5.75, p = 0.000). Finally, the mixed follicular-papillary variant of PTMC represents an independent risk factor for a multifocal PTMC (OR 2.42, 95% CI 1.09-5.36, p = 0.030). CONCLUSIONS Intrathyroid extension is present in more than a quarter of PTMCs found in patients operated for benign thyroid disease. Independent risk factors for intrathyroid extension are size of PTMC greater than 5 mm and the mixed follicular-papillary variant of PTMC, while a large thyroid gland is an independent protective factor.
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Affiliation(s)
- Nikola Slijepcevic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Koste Todorovica 8, Belgrade, 11000, Serbia. .,Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, 11000, Serbia.
| | - Vladan Zivaljevic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Koste Todorovica 8, Belgrade, 11000, Serbia.,Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, 11000, Serbia
| | - Aleksandar Diklic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Koste Todorovica 8, Belgrade, 11000, Serbia.,Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, 11000, Serbia
| | - Milan Jovanovic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Koste Todorovica 8, Belgrade, 11000, Serbia
| | - Branislav Oluic
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, 11000, Serbia.,Emergency Centre, Clinical Centre of Serbia, Pasterova 2, Belgrade, 11000, Serbia
| | - Ivan Paunovic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Koste Todorovica 8, Belgrade, 11000, Serbia.,Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, 11000, Serbia
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Zhi J, Zhao J, Gao M, Pan Y, Wu J, Li Y, Li D, Yu Y, Zheng X. Impact of major different variants of papillary thyroid microcarcinoma on the clinicopathological characteristics: the study of 1041 cases. Int J Clin Oncol 2017; 23:59-65. [PMID: 28744725 PMCID: PMC5809566 DOI: 10.1007/s10147-017-1170-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/19/2017] [Indexed: 12/13/2022]
Abstract
Background The incidence of papillary thyroid microcarcinoma (PTMC) has been increasing globally in the past few decades. PTMC does not have a distinctive morphology that results in differences in biological behavior. The aim of this study was to classify PTMCs according to the morphological features and explore the relationship with clinicopathological characteristics. Additionally, we sought to evaluate whether different variants of PTMC can be an independent predictor for lymph mode metastasis when considering other risk factors. Methods Between December 2014 and December 2015, 1041 PTMC cases undergoing surgical resection at Tianjin Medical University Cancer Institute and Hospital were reviewed retrospectively. Statistical analysis was performed to investigate the independent factors for lymph node metastasis in PTMC. Results Conventional variant PTMC (CPTMC), follicular variant PTMC (FPTMC), and encapsulated variant PTMC (EnPTMC) were major variants in PTMC, collectively accounting for 96.7% of the entire PTMC cohort.There were significant differences in clinicopathological characteristics among the three major variants. The frequency of aggressive parameters was significantly different among the three variants, including tumor size, minimal extrathyroidal extension (minimal ETE), and lymph node metastasis (all P < 0.05), being highest in CPTMC, lowest in EnPTMC, and intermediate in FPTMC. FPTMC (OR = 0.642, P = 0.003) and EnPTMC (OR = 0.540, P = 0.041) were independent protective factors for lymph node metastasis (LNM). In contrast, male gender (OR = 1.836, P = 0.000), age less than 45 years (OR = 1.457, P = 0.009), tumor size greater than 0.5 cm (OR = 1.453, P = 0.007), calcification (OR = 1.465, P = 0.016), minimal ETE (OR = 1.801, P = 0.001), and multifocality (OR = 1.721, P = 0.000) were independent risk factors for LNM. Conclusions The present study demonstrates the distinct biological behaviors of the three major PTMC variants and establishes an aggressive order of CPTMC ≫ FPTMC > EnPTMC. It is necessary to take into consideration variant-related risks and other independent predictors for the determination of lymphadenectomy in patients with PTMC.
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Affiliation(s)
- Jingtai Zhi
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Jingzhu Zhao
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Ming Gao
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China.
| | - Yi Pan
- Department of Pathology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Jianghua Wu
- Department of Pathology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Yigong Li
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Dapeng Li
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Yang Yu
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Xiangqian Zheng
- Department of Thyroid and Neck Tumor, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China.
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Ng SC, Kuo SF, Chen ST, Hsueh C, Huang BY, Lin JD. Therapeutic Outcomes of Patients with Multifocal Papillary Thyroid Microcarcinomas and Larger Tumors. Int J Endocrinol 2017. [PMID: 28642790 PMCID: PMC5470030 DOI: 10.1155/2017/4208178] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A retrospective review of 626 patients with multifocal papillary thyroid carcinoma (PTC) including 147 patients (23.5%) with multifocal papillary thyroid microcarcinoma (PTMC) from a total of 2,536 patients with PTC who visited the Chang Gung Medical Center in Linkou, Taiwan, was performed. A comparison of the clinical features between 626 multifocal and 1,910 solitary PTC cases showed that patients in the multifocal PTC group were older and had a smaller mean tumor size, a more advanced tumor-node-metastasis (TNM) stage, and a higher percentage of nonremission status compared to patients in the solitary PTC group. Of the 626 patients with multifocal PTC, the group with larger tumors showed a more advanced TNM stage, a higher percentage of lymph node metastasis and soft tissue invasion, and a higher nonremission rate compared to the multifocal PTMC group. Of the 626 patients with multifocal PTC, 25 patients (4%) died during a mean follow-up period of 7.1 ± 5.3 years. Kaplan-Meier survival curves showed a significantly lower survival rate associated with multifocal PTMC compared to that with solitary PTMC.
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Affiliation(s)
- Soh-Ching Ng
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Sheng-Fong Kuo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Szu-Tah Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital and Chang Gung University, Keelung, Taiwan
| | - Chuen Hsueh
- Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, Keelung, Taiwan
| | - Bie-Yu Huang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Jen-Der Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital and Chang Gung University, Keelung, Taiwan
- *Jen-Der Lin:
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Kim SY, Lee HS, Kim EK, Moon HJ, Yoon JH, Hong JH, Kwak JY. Follow-up ultrasound may be enough for thyroid nodules from 5 mm to 1 cm in size. Endocrine 2016; 52:130-8. [PMID: 26394881 DOI: 10.1007/s12020-015-0740-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/10/2015] [Indexed: 11/24/2022]
Abstract
We investigated whether follow-up ultrasound (US) is enough for thyroid nodules 5-10 mm, and whether 3 years of interval between the initial US and next US is appropriate. This retrospective study was approved by the Institutional Review Board, and the need to obtain informed consent was waived. The study included 447 thyroid nodules 5-10 mm from 378 patients who underwent initial thyroid US, and underwent 3 years or more of follow-up US. The presence and characteristics of malignancy detected on follow-up were reviewed. Maximal diameters of each nodule at the initial and last US were measured. Univariate and multivariate analysis were used to assess association with nodule growth 3 mm or larger. Seven malignancies (1.6 %, 7 of 447) were detected on a mean 70.6 ± 20.3 months (range 36-104 months). Only one had growth 3 mm or larger, and all malignancies did not have extensive extrathyroidal extension, lateral lymph nodes, or distant metastasis. 6.0 % (27 of 447) of nodules had growth 3 mm or larger. Nodules in older patients were less likely to grow, and benign-looking nodules were more likely to grow. Longer follow-up time 6 years or more was not associated with growth, and no cancers were detected during the long follow-up time. Immediate US-FNA for thyroid nodules 5-10 mm are discouraged, unless suspicious metastatic lymph nodes are present. Also, a follow-up US 3 years after the initial US may be enough for these nodules.
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Affiliation(s)
- Soo-Yeon Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50 Yonse-ro, Seodaemun-gu, Seoul, 120-752, Korea
| | - Hye Sun Lee
- Biostatistics Collaboration Unit, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50 Yonse-ro, Seodaemun-gu, Seoul, 120-752, Korea
| | - Hee Jung Moon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50 Yonse-ro, Seodaemun-gu, Seoul, 120-752, Korea
| | - Jung Hyun Yoon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50 Yonse-ro, Seodaemun-gu, Seoul, 120-752, Korea
| | - Jung Hwa Hong
- Biostatistics Collaboration Unit, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Young Kwak
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50 Yonse-ro, Seodaemun-gu, Seoul, 120-752, Korea.
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Lin JD. Discovering Incidental Thyroid Disease by Imaging Studies. J Med Ultrasound 2015. [DOI: 10.1016/j.jmu.2015.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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12
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Kim JY, Jung EJ, Park T, Jeong SH, Jeong CY, Ju YT, Lee YJ, Hong SC, Choi SK, Ha WS. Impact of tumor size on subclinical central lymph node metastasis in papillary thyroid microcarcinoma depends on age. World J Surg Oncol 2015; 13:88. [PMID: 25886181 PMCID: PMC4404273 DOI: 10.1186/s12957-015-0478-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/22/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study is to evaluate whether the associations between clinicopathologic factors of papillary thyroid microcarcinoma (PTMC), especially tumor size, and subclinical central lymph node metastasis (LNM) are dependent on patient age. METHODS The medical records of 428 patients who underwent thyroid surgery for PTC measuring ≤1 cm were reviewed. All patients were clinically lymph node negative and underwent thyroidectomy with unilateral or bilateral central lymph node dissection. Univariate and multivariate analyses were performed to identify clinicopathologic factors associated with central LNM. RESULTS Central LNM was identified in 96 of 428 (22.4%) patients. Mean tumor size was significantly greater in patients with than without central LNM (0.74 ± 0.22 cm vs. 0.64 ± 0.23 cm, P = 0.001). Tumor size > 0.5 cm was significantly predictive of central LNM. Subgroup analysis according to age groups showed that tumor size was an independent predictor of subclinical central LNM only in patients aged ≥45 years. CONCLUSIONS Factors predictive of central LNM in patients with PTMC differed by age. PTMC size was an independent predictor of subclinical central LNM only in patients aged ≥45 years.
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Affiliation(s)
- Ju-Yeon Kim
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Eun Jung Jung
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Taejin Park
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Sang-Ho Jeong
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Chi-Young Jeong
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Young-Tae Ju
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Young-Joon Lee
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Soon-Chan Hong
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Sang-Kyung Choi
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
| | - Woo-Song Ha
- Department of Surgery, School of Medicine, Gyeongsang National University College of Medicine, 90 Chilamdong, Jinju, 660-702, Korea.
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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: 732] [Impact Index Per Article: 73.2] [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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14
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Hwang SO, Lee SW, Kang JK, Choi HH, Kim WW, Park HY, Jung JH. Clinical value of visually identifiable 18F-fluorodeoxyglucose uptake in primary papillary thyroid microcarcinoma. Otolaryngol Head Neck Surg 2014; 151:415-20. [PMID: 24903453 DOI: 10.1177/0194599814537224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE This study evaluates the relationship between visually identifiable (18)F-fluorodeoxyglucose (FDG) uptake in primary papillary thyroid microcarcinoma (PTMC) and tumor aggressiveness. STUDY DESIGN Historical cohort study. SETTING Tertiary care center. METHODS Clinicopathological factors and PET/CT findings of 219 PTMC surgical patients who underwent preoperative (18)F-FDG positron emission tomography/computed tomography (PET/CT) were retrospectively reviewed. RESULTS (18)F-FDG uptake was observed in the tumors of 124 (56.6%) patients. Tumor size (odds ratio [OR] = 1.774; 95% confidence interval [CI], 1.416-2.223; P < .0001) and Hashimoto thyroiditis (OR = 2.815; CI, 1.237-6.404; P = .014) independently predicted (18)F-FDG uptake. Tumor size (OR = 1.495; CI, 1.217-1.835; P < .0001) and BRAF(V600E) mutation (OR = 3.320; CI, 1.056-10.432; P = .040) independently predicted extrathyroidal invasion. Multiplicity (OR = 2.375; CI, 1.278-4.415; P = .006) independently predicted central lymph node metastasis. CONCLUSION (18)F-FDG uptake in PTMC depends on tumor size and Hashimoto thyroiditis. Therefore, preoperative PET/CT for PTMC may not help in evaluating tumor aggressiveness.
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Affiliation(s)
- Seung Ook Hwang
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sang-Woo Lee
- Department of Nuclear Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jin Koo Kang
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
| | - Hyang Hee Choi
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
| | - Wan Wook Kim
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
| | - Ho Yong Park
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jin Hyang Jung
- Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea
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15
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Kuo SF, Lin SF, Chao TC, Hsueh C, Lin KJ, Lin JD. Prognosis of multifocal papillary thyroid carcinoma. Int J Endocrinol 2013; 2013:809382. [PMID: 24489543 PMCID: PMC3892555 DOI: 10.1155/2013/809382] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 01/06/2023] Open
Abstract
This study was to investigate the clinical features and therapeutic outcomes of multifocal papillary thyroid microcarcinoma (PTMC). A total of 2,418 papillary thyroid carcinoma (PTC) patients had undergone thyroidectomy in one medical center between 1977 and 2010. There were 483 (20.0%) diagnosed with multifocal PTC. The percentage of multifocal PTC was higher in PTMC patients (22.0%) than in non-PTMC patients (19.5%). Demographic and clinical characteristics of PTMC and multifocal PTC in PTC patients were traced. Multifocal PTC patients presented with smaller tumors at an older age, and a higher percentage underwent total or complete thyroidectomy. These patients also showed a higher incidence of postoperative disease progression than did unifocal PTC patients. Comparison of 483 patients with multifocal PTMC and non-PTMC tumors showed a higher incidence of postoperative disease progression in patients with non-PTMC; otherwise, there was no statistical difference in disease-specific and total mortality between these two groups. In conclusion, the incidence of multifocal PTMC was not lower than that of non-PTMC, and postoperative therapies were necessary for both multifocal PTMC and non-PTMC patients.
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Affiliation(s)
- Sheng-Fong Kuo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
| | - Shu-Fu Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
| | - Tzu-Chieh Chao
- Department of General Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
| | - Chuen Hsueh
- Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
| | - Kun-Ju Lin
- Department of Nuclear Medicine; Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
| | - Jen-Der Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
- *Jen-Der Lin:
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16
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Zhao Q, Ming J, Liu C, Shi L, Xu X, Nie X, Huang T. Multifocality and Total Tumor Diameter Predict Central Neck Lymph Node Metastases in Papillary Thyroid Microcarcinoma. Ann Surg Oncol 2012; 20:746-52. [DOI: 10.1245/s10434-012-2654-2] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Indexed: 01/10/2023]
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17
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Abstract
Papillary thyroid microcarcinomas (PTMCs) are the most common form of classic papillary thyroid carcinoma (PTC). PTMCs are typically discovered by fine-needle- aspiration biopsy (FNAB), usually with sensitive imaging studies, or are found during thyroid surgery in a patient without a previously known history of thyroid carcinoma. However, the definition of PTMC has not always been universally accepted, thus creating controversy concerning the diagnosis and treatment of PTMC. The aim of this review is to summarize the clinical features of PTMC and identify the widely differing opinions concerning the diagnosis and management of these small ubiquitous thyroid tumors.
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Affiliation(s)
- Ernest L Mazzaferri
- Division of Endocrinology, Shands Hospital, University of Florida, 4020 SW, 9rd Drive, Gainesville, FL 32608, USA.
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