Endocrinology and Metabolism

Original Articles

Distinct Impacts of Clinicopathological and Mutational Profiles on Long-Term Survival and Recurrence in Medullary Thyroid Carcinoma: Moon Young Oh, Kyong Yeun Jung, Hoonsung Choi, Young Jun Chai, Sun Wook Cho, Su-jin Kim, Kyu Eun Lee, Eun-Jae Chung, Do Joon Park, Young Joo Park, Han-Kwang Yang; Received May 2, 2024 Accepted June 27, 2024 Published online November 5, 2024; DOI: https://doi.org/10.3803/EnM.2024.2027 [Epub ahead of print]

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Abstract PDF Supplementary Material PubReader ePub: Background
Medullary thyroid carcinoma (MTC) has a poorer prognosis than differentiated thyroid cancers; however, comprehensive data on the long-term outcomes of MTC remain scarce. This study investigated the extended clinical outcomes of MTC and aimed to identify prognostic factors.
Methods
Patients diagnosed with MTC between 1980 and 2020 were retrospectively reviewed. Their clinical characteristics, longterm clinical outcomes, and prognostic factors for recurrence and mortality were analyzed.
Results
The study included 226 patients (144 women, 82 men). The disease-specific survival (DSS) rates for all MTC patients at 5-, 10-, 20-, and 30-year intervals were 92.7%, 89.4%, 74.3%, and 68.1%, respectively. The recurrence-free survival (RFS) rates were 71.1%, 56.1%, 40.2%, and 32.1% at these intervals. DSS was comparable between the groups from 1980–2009 and 2010–2020 (P=0.995); however, the 1980–2009 group had significantly lower RFS rates (P=0.031). The 2010–2020 group exhibited greater extents of surgical and lymph node dissection (P=0.003) and smaller tumors (P=0.003). Multivariate analysis identified extrathyroidal extension as the strongest prognostic factor for both RFS and DSS. Age >55 years and tumor size of ≥2 cm were also significant prognostic factors for DSS, while hereditary disease and lymph node metastasis were significant for RFS. Survival analysis after propensity-score matching of rearranged during transfection (RET)-negative and non-screened RET-positive groups showed comparable DSS but longer RFS in the RET-negative group.
Conclusion
Extrathyroidal extension was identified as the strongest prognostic factor for RFS and DSS. Older age and larger tumor size were associated with decreased DSS, while RET mutation and lymph node metastasis significantly impacted RFS.

Thyroid
Adequate Dose of Levothyroxine for Thyroid-Stimulating Hormone Suppression after Total Thyroidectomy in Patients with Differentiated Thyroid Cancer: Hyun Jin Ryu, Min Sun Choi, Hyunju Park, Tae Hyuk Kim, Jae Hoon Chung, So Young Park, Sun Wook Kim; Endocrinol Metab. 2024;39(4):615-621. Published online August 7, 2024; DOI: https://doi.org/10.3803/EnM.2023.1896

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Background
The adequate dose of levothyroxine (LT4) for patients who have undergone total thyroidectomy (TT) for differentiated thyroid cancer (DTC) is uncertain. We evaluated the LT4 dose required to achieve mild thyroid-stimulating hormone (TSH) suppression in DTC patients after TT.
Methods
The electronic medical records of patients who underwent TT for DTC and received mild TSH suppression therapy were reviewed. Linear regression analysis was performed to evaluate the association between LT4 dose (μg/kg) and an ordinal group divided by body mass index (BMI). We also evaluated the trend in LT4 doses among groups divided by BMI and age.
Results
In total, 123 patients achieved mild TSH suppression (0.1 to 0.5 mIU/L). The BMI variable was divided into three categories: <23 kg/m² (n=46), ≥23 and <25 kg/m² (n=30), and ≥25 kg/m² (n=47). In the linear regression analysis, BMI was negatively associated with the LT4 dose after adjusting for age and sex (P<0.001). The LT4 doses required to achieve mild TSH suppression based on the BMI categories were 1.86, 1.71, and 1.71 μg/kg, respectively (P for trend <0.001). Further analysis with groups divided by age and BMI revealed that a higher BMI was related to a lower LT4 dose, especially in younger patients aged 20 to 39 (P for trend=0.011).
Conclusion
The study results suggest an appropriate LT4 dose for mild TSH suppression after TT based on body weight in patients with DTC. Considering body weight, BMI, and age in estimating LT4 doses might help to achieve the target TSH level promptly.

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Levothyroxine Dosing for Thyroid-Stimulating Hormone Suppression in Patients with Differentiated Thyroid Cancer after Total Thyroidectomy
Mijin Kim
Endocrinology and Metabolism.2024; 39(4): 576. CrossRef

Thyroid
Prognosis of Poorly Differentiated Thyroid Carcinoma: A Systematic Review and Meta-Analysis: Ji Young Kim, Jae Kyung Myung, Soyun Kim, Kyung Tae, Yun Young Choi, Soo Jin Lee; Endocrinol Metab. 2024;39(4):590-602. Published online June 27, 2024; DOI: https://doi.org/10.3803/EnM.2024.1927

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Background
Poorly differentiated thyroid carcinoma (PDTC) accounts for a small portion of thyroid carcinomas but contributes to a significant proportion of thyroid carcinoma-associated deaths. The clinicopathological prognostic factors and clinical outcomes of PDTC remain unclear. We aimed to evaluate the clinical outcomes of patients with PDTC after curative treatment.
Methods
A comprehensive search was performed up to September 2023. We included studies investigating treatment outcomes in patients with PDTC who underwent initial surgery. The 5-year disease-free survival (DFS) and overall survival (OS) were extracted. In this meta-analysis, the enrolled PDTC histological criteria included 3rd, 4th, and 5th World Health Organization (WHO) and Memorial Sloan Kettering Cancer Center (MSKCC) classification. A random-effects model was used for the pooled proportion analysis. Meta-regression analysis was conducted to evaluate the prognostic factors.
Results
Twenty retrospective studies published between 2007 and 2023, including 1,294 patients, met all inclusion criteria. Studies that diagnosed PDTC based on various histological criteria including 3rd WHO (n=5), 4th WHO (n=12), 5th WHO (n=2), and MSKCC (n=1) were included. Overall, 5-year DFS and 5-year OS were 49.4% (95% confidence interval [CI], 42.3 to 56.4) and 73.8% (95% CI, 66.5 to 79.9), with moderate heterogeneity of 58% and 55%, respectively. In meta-regression analysis, extrathyroidal extension (ETE) was a prognostic factor for OS.
Conclusion
The meta-analysis of DFS and OS in patients with PDTC show the moderate heterogeneity with a variety of histological criteria. ETE appears to have a significant impact on OS, regardless of histological criteria.

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Aggressive Types of Malignant Thyroid Neoplasms
Maria Boudina, Eleana Zisimopoulou, Persefoni Xirou, Alexandra Chrisoulidou
Journal of Clinical Medicine.2024; 13(20): 6119. CrossRef

Review Article

Thyroid
Metabolic Reprogramming in Thyroid Cancer: Sang-Hyeon Ju, Minchul Song, Joung Youl Lim, Yea Eun Kang, Hyon-Seung Yi, Minho Shong; Endocrinol Metab. 2024;39(3):425-444. Published online June 10, 2024; DOI: https://doi.org/10.3803/EnM.2023.1802

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Abstract PDF PubReader ePub: Thyroid cancer is a common endocrine malignancy with increasing incidence globally. Although most cases can be treated effectively, some cases are more aggressive and have a higher risk of mortality. Inhibiting RET and BRAF kinases has emerged as a potential therapeutic strategy for the treatment of thyroid cancer, particularly in cases of advanced or aggressive disease. However, the development of resistance mechanisms may limit the efficacy of these kinase inhibitors. Therefore, developing precise strategies to target thyroid cancer cell metabolism and overcome resistance is a critical area of research for advancing thyroid cancer treatment. In the field of cancer therapeutics, researchers have explored combinatorial strategies involving dual metabolic inhibition and metabolic inhibitors in combination with targeted therapy, chemotherapy, and immunotherapy to overcome the challenge of metabolic plasticity. This review highlights the need for new therapeutic approaches for thyroid cancer and discusses promising metabolic inhibitors targeting thyroid cancer. It also discusses the challenges posed by metabolic plasticity in the development of effective strategies for targeting cancer cell metabolism and explores the potential advantages of combined metabolic targeting.

Original Articles

Thyroid
Utilizing Immunoglobulin G4 Immunohistochemistry for Risk Stratification in Patients with Papillary Thyroid Carcinoma Associated with Hashimoto Thyroiditis: Faridul Haq, Gyeongsin Park, Sora Jeon, Mitsuyoshi Hirokawa, Chan Kwon Jung; Endocrinol Metab. 2024;39(3):468-478. Published online May 20, 2024; DOI: https://doi.org/10.3803/EnM.2024.1923

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Abstract PDF PubReader ePub: Background
Hashimoto thyroiditis (HT) is suspected to correlate with papillary thyroid carcinoma (PTC) development. While some HT cases exhibit histologic features of immunoglobulin G4 (IgG4)-related disease, the relationship of HT with PTC progression remains unestablished.
Methods
This cross-sectional study included 426 adult patients with PTC (≥1 cm) undergoing thyroidectomy at an academic thyroid center. HT was identified based on its typical histologic features. IgG4 and IgG immunohistochemistry were performed. Wholeslide images of immunostained slides were digitalized. Positive plasma cells per 2 mm² were counted using QuPath and a pre-trained deep learning model. The primary outcome was tumor structural recurrence post-surgery.
Results
Among the 426 PTC patients, 79 were diagnosed with HT. With a 40% IgG4 positive/IgG plasma cell ratio as the threshold for diagnosing IgG4-related disease, a cutoff value of >150 IgG4 positive plasma cells per 2 mm² was established. According to this criterion, 53% (43/79) of HT patients were classified as IgG4-related. The IgG4-related HT subgroup presented a more advanced cancer stage than the IgG4-non-related HT group (P=0.038). The median observation period was 109 months (range, 6 to 142). Initial assessment revealed 43 recurrence cases. Recurrence-free survival periods showed significant (P=0.023) differences, with patients with IgG4 non-related HT showing the longest period, followed by patients without HT and those with IgG4-related HT.
Conclusion
This study effectively stratified recurrence risk in PTC patients based on HT status and IgG4-related subtypes. These findings may contribute to better-informed treatment decisions and patient care strategies.

Thyroid
Clinical Manifestations of Malignant Struma Ovarii: A Retrospective Case Series in a Tertiary Hospital in Korea: Hyun Jin Ryu, Da Eun Leem, Ji Hyun Yoo, Tae Hyuk Kim, Sun Wook Kim, Jae Hoon Chung; Endocrinol Metab. 2024;39(3):461-467. Published online May 9, 2024; DOI: https://doi.org/10.3803/EnM.2023.1863

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Background
Malignant struma ovarii (MSO) is a very rare disease in which thyroid cancer originates from the ovary. Because it is rare for endocrinologists to encounter patients with MSO, endocrinologists may have a limited understanding of the disease. Therefore, we analyzed and introduced its incidence and clinical course in a tertiary hospital in Korea.
Methods
We retrospectively investigated the clinical data of 170 patients who underwent surgery for struma ovarii at the Department of Obstetrics and Gynecology of Samsung Medical Center from 1994 to May 2023.
Results
Among 170 patients with struma ovarii, 15 (8.8%) were diagnosed with MSO. The median age of patients with MSO was 48 years (range, 30 to 74), and the median tumor size was 3.3 cm (range, 0.5 to 11.0). Papillary thyroid carcinoma (46.7%) was the most common subtypes followed by follicular thyroid carcinoma (26.7%). All patients were diagnosed after surgery, with no predictions from preoperative imaging. The surgical extent of gynecological surgery was variable. Four patients (26.7%) underwent thyroidectomy for thyroid cancer, while one underwent total thyroidectomy and radioactive iodine therapy for MSO with peritoneal metastasis. Except for one patient who underwent hemithyroidectomy, thyroid stimulating hormone suppression therapy was performed in four patients. Only 53% of MSO patients were consulted by an endocrinologist. With a median follow-up period of 33 months (range, 4 to 156), 11 patients remained disease-free, one experienced progression with peritoneal seeding, and the remaining one was in treatment. There have been no recurrences or deaths due to MSO.
Conclusion
An endocrinologist should be involved in establishing a therapeutic plan for MSO, for which the overall prognosis is generally favorable.

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Diagnostic Value of Nuclear Hybrid Imaging in Malignant Struma Ovarii: A Systematic Review of Case Reports
Claudiu Peștean, Doina Piciu
Diagnostics.2024; 14(23): 2630. CrossRef

Thyroid
Prognostic Roles of Inflammatory Biomarkers in Radioiodine-Refractory Thyroid Cancer Treated with Lenvatinib: Chae A Kim, Mijin Kim, Meihua Jin, Hee Kyung Kim, Min Ji Jeon, Dong Jun Lim, Bo Hyun Kim, Ho-Cheol Kang, Won Bae Kim, Dong Yeob Shin, Won Gu Kim; Endocrinol Metab. 2024;39(2):334-343. Published online April 4, 2024; DOI: https://doi.org/10.3803/EnM.2023.1854

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Abstract PDF Supplementary Material PubReader ePub: Background
Inflammatory biomarkers, such as the neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), and platelet-to-lymphocyte ratio (PLR), serve as valuable prognostic indicators in various cancers. This multicenter, retrospective cohort study assessed the treatment outcomes of lenvatinib in 71 patients with radioactive iodine (RAI)-refractory thyroid cancer, considering the baseline inflammatory biomarkers.
Methods
This study retrospectively included patients from five tertiary hospitals in Korea whose complete blood counts were available before lenvatinib treatment. Progression-free survival (PFS) and overall survival (OS) were evaluated based on the median value of inflammatory biomarkers.
Results
No significant differences in baseline characteristics were observed among patients grouped according to the inflammatory biomarkers, except for older patients with a higher-than-median NLR (≥2) compared to their counterparts with a lower NLR (P= 0.01). Patients with a higher-than-median NLR had significantly shorter PFS (P=0.02) and OS (P=0.017) than those with a lower NLR. In multivariate analysis, a higher-than-median NLR was significantly associated with poor OS (hazard ratio, 3.0; 95% confidence interval, 1.24 to 7.29; P=0.015). However, neither the LMR nor the PLR was associated with PFS. A higher-than-median LMR (≥3.9) was significantly associated with prolonged OS compared to a lower LMR (P=0.036). In contrast, a higher-than-median PLR (≥142.1) was associated with shorter OS compared to a lower PLR (P=0.039).
Conclusion
Baseline inflammatory biomarkers can serve as predictive indicators of PFS and OS in patients with RAI-refractory thyroid cancer treated with lenvatinib.

Thyroid Big Data Articles (National Health Insurance Service Database)
Risk of Subsequent Primary Cancers in Thyroid Cancer Survivors according to the Dose of Levothyroxine: A Nationwide Cohort Study: Min-Su Kim, Jang Won Lee, Min Kyung Hyun, Young Shin Song; Endocrinol Metab. 2024;39(2):288-299. Published online March 4, 2024; DOI: https://doi.org/10.3803/EnM.2023.1815

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Background
Current research has not investigated the effect of thyroid-stimulating hormone suppression therapy with levothyroxine on the risk for developing subsequent primary cancers (SPCs). This study aimed to investigate the association between levothyroxine dosage and the risk for SPCs in thyroid cancer patients.
Methods
We conducted a nationwide population-based retrospective cohort study form Korean National Health Insurance database. This cohort included 342,920 thyroid cancer patients between 2004 and 2018. Patients were divided into the non-levothyroxine and the levothyroxine groups, the latter consisting of four dosage subgroups according to quartiles. Cox proportional hazard models were performed to evaluate the risk for SPCs by adjusting for variables including cumulative doses of radioactive iodine (RAI) therapy.
Results
A total of 17,410 SPC cases were observed over a median 7.3 years of follow-up. The high-dose levothyroxine subgroups (Q3 and Q4) had a higher risk for SPC (adjusted hazard ratio [HR], 1.14 and 1.27; 95% confidence interval [CI], 1.05–1.24 and 1.17– 1.37; respectively) compared to the non-levothyroxine group. In particular, the adjusted HR of stomach (1.31), colorectal (1.60), liver and biliary tract (1.95), and pancreatic (2.48) cancers were increased in the Q4 subgroup. We consistently observed a positive association between high levothyroxine dosage per body weight and risk of SPCs, even after adjusting for various confounding variables. Moreover, similar results were identified in the stratified analyses according to thyroidectomy type and RAI therapy, as well as in a subgroup analysis of patients with good adherence.
Conclusion
High-dose levothyroxine use was associated with increased risk of SPCs among thyroid cancer patients regardless of RAI therapy.

Citations

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The Levothyroxine Odyssey: Navigating the Path of Survivorship in Thyroid Cancer
Jin Hwa Kim
Endocrinology and Metabolism.2024; 39(2): 283. CrossRef
Levothyroxine Dosage and the Increased Risk of Second Primary Malignancy in Thyroid Cancer Survivors
Young Joo Park
Clinical Thyroidology®.2024; 36(7): 258. CrossRef

Review Article

Thyroid
Active Surveillance for Low-Risk Thyroid Cancers: A Review of Current Practice Guidelines: Min Joo Kim, Jae Hoon Moon, Eun Kyung Lee, Young Shin Song, Kyong Yeun Jung, Ji Ye Lee, Ji-hoon Kim, Kyungsik Kim, Sue K. Park, Young Joo Park; Endocrinol Metab. 2024;39(1):47-60. Published online February 15, 2024; DOI: https://doi.org/10.3803/EnM.2024.1937

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The indolent nature and favorable outcomes associated with papillary thyroid microcarcinoma have prompted numerous prospective studies on active surveillance (AS) and its adoption as an alternative to immediate surgery in managing low-risk thyroid cancer. This article reviews the current status of AS, as outlined in various international practice guidelines. AS is typically recommended for tumors that measure 1 cm or less in diameter and do not exhibit aggressive subtypes on cytology, extrathyroidal extension, lymph node metastasis, or distant metastasis. To determine the most appropriate candidates for AS, factors such as tumor size, location, multiplicity, and ultrasound findings are considered, along with patient characteristics like medical condition, age, and family history. Moreover, shared decision-making, which includes patient-reported outcomes such as quality of life and cost-effectiveness, is essential. During AS, patients undergo regular ultrasound examinations to monitor for signs of disease progression, including tumor growth, extrathyroidal extension, or lymph node metastasis. In conclusion, while AS is a feasible and reliable approach for managing lowrisk thyroid cancer, it requires careful patient selection, effective communication for shared decision-making, standardized follow-up protocols, and a clear definition of disease progression.

Citations

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2023 Update of the Korean Thyroid Association Guidelines for the Management of Thyroid Nodules
Eun Kyung Lee, Young Joo Park
Clinical Thyroidology®.2024; 36(4): 153. CrossRef
Association between exercise habits and incident type 2 diabetes mellitus in patients with thyroid cancer: nationwide population-based study
Jiyun Park, Jin-Hyung Jung, Hyunju Park, Young Shin Song, Soo-Kyung Kim, Yong-Wook Cho, Kyungdo Han, Kyung-Soo Kim
BMC Medicine.2024;[Epub] CrossRef
Prediction of Recurrent Laryngeal Nerve Invasion in Thyroid Cancer by Ultrasound
Jin Hyang Jung, Eunji Kim, Byung Ju Kang
Journal of Surgical Ultrasound.2024; 11(1): 18. CrossRef
Advances in clinical research on ultrasound-guided radiofrequency ablation for papillary thyroid microcarcinoma
Hua Xu, Jin-yan Yang, Xing Zhao, Zhe Ma
Frontiers in Oncology.2024;[Epub] CrossRef
Systemic therapy for differentiated thyroid cancer with distant metastasis
Eun Kyung Lee
Journal of the Korean Medical Association.2024; 67(7): 484. CrossRef
Proteomic Analysis of Tissue Proteins Related to Lateral Lymph Node Metastasis in Papillary Thyroid Microcarcinoma
Qiyao Zhang, Zhen Cao, Yuanyang Wang, Hao Wu, Zejian Zhang, Ziwen Liu
Journal of Proteome Research.2024;[Epub] CrossRef
Active Surveillance of Papillary Thyroid Cancer—A Feasibility Experience from a Tertiary Care Centre
Narmada Nangadda, Hetashvi Gondaliya, Deepali Bhat, Anirudh J. Shetty, Kranti S. Khadilkar, Shivaprasad Kumbenahalli Siddegowda, Basavaraj G. Sooragonda, Vijay Pillai, Vidhya Bhushan Rangappa, Vivek Shetty, Yogesh Madhav Dokhe, Trupti C. Kolur, Naveen Ban
Indian Journal of Surgical Oncology.2024;[Epub] CrossRef

Original Article

Thyroid
Hashimoto Thyroiditis and Mortality in Patients with Differentiated Thyroid Cancer: The National Epidemiologic Survey of Thyroid Cancer in Korea and Meta-Analysis: Injung Yang, Jae Myung Yu, Hye Soo Chung, Yoon Jung Kim, Yong Kyun Roh, Min Kyu Choi, Sung-ho Park, Young Joo Park, Shinje Moon; Endocrinol Metab. 2024;39(1):140-151. Published online January 3, 2024; DOI: https://doi.org/10.3803/EnM.2023.1748

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Background
Many studies have shown that Hashimoto’s thyroiditis (HT) acts as a protective factor in differentiated thyroid cancer (DTC), but little is known about its effects on mortality. Therefore, this study was performed to reveal the prognosis of HT on mortality in patients with DTC.
Methods
This study included two types of research results: retrospective cohort study using the National Epidemiologic Survey of Thyroid cancer (NEST) in Korea and meta-analysis study with the NEST data and eight selected studies.
Results
Of the 4,398 patients with DTC in NEST, 341 patients (7.8%) died during the median follow-up period of 15 years (interquartile range, 12.3 to 15.6). Of these, 91 deaths (2.1%) were related to DTC. HT was associated with a smaller tumor size and less aggressive DTC. In Cox regression analysis after adjusting for age and sex, patients with HT showed a significantly lower risk of all-cause death (hazard ratio [HR], 0.71; 95% confidence interval [CI], 0.52 to 0.96) and DTC-related death (HR, 0.33; 95% CI, 0.14 to 0.77). The analysis with inverse probability of treatment weight data adjusted for age, sex, and year of thyroid cancer registration showed similar association. The meta-analysis showed that patients with HT showed a lower risk of all-cause mortality (risk ratio [RR], 0.24; 95% CI, 0.13 to 0.47) and thyroid cancer-related mortality (RR, 0.23; 95% CI, 0.13 to 0.40) in comparison with patients without HT.
Conclusion
This study showed that DTC co-presenting with HT is associated with a low risk of advanced DTC and presents a low risk for all-cause and DTC-related death.

Citations

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Germline polymorphisms of the NOD2 pathway may predict the effectiveness of radioiodine in differentiated thyroid cancer treatment
M. Borowczyk, M. Kaczmarek-Ryś, S. Hryhorowicz, M. Sypniewski, D. Filipowicz, P. Dobosz, M. Oszywa, M. Ruchała, K. Ziemnicka
Journal of Endocrinological Investigation.2024; 47(12): 2969. CrossRef

Review Article

Miscellaneous
Toward Systems-Level Metabolic Analysis in Endocrine Disorders and Cancer: Aliya Lakhani, Da Hyun Kang, Yea Eun Kang, Junyoung O. Park; Endocrinol Metab. 2023;38(6):619-630. Published online November 21, 2023; DOI: https://doi.org/10.3803/EnM.2023.1814

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Metabolism is a dynamic network of biochemical reactions that support systemic homeostasis amidst changing nutritional, environmental, and physical activity factors. The circulatory system facilitates metabolite exchange among organs, while the endocrine system finely tunes metabolism through hormone release. Endocrine disorders like obesity, diabetes, and Cushing’s syndrome disrupt this balance, contributing to systemic inflammation and global health burdens. They accompany metabolic changes on multiple levels from molecular interactions to individual organs to the whole body. Understanding how metabolic fluxes relate to endocrine disorders illuminates the underlying dysregulation. Cancer is increasingly considered a systemic disorder because it not only affects cells in localized tumors but also the whole body, especially in metastasis. In tumorigenesis, cancer-specific mutations and nutrient availability in the tumor microenvironment reprogram cellular metabolism to meet increased energy and biosynthesis needs. Cancer cachexia results in metabolic changes to other organs like muscle, adipose tissue, and liver. This review explores the interplay between the endocrine system and systems-level metabolism in health and disease. We highlight metabolic fluxes in conditions like obesity, diabetes, Cushing’s syndrome, and cancers. Recent advances in metabolomics, fluxomics, and systems biology promise new insights into dynamic metabolism, offering potential biomarkers, therapeutic targets, and personalized medicine.

Citations

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Editorial: Tumor metabolism and programmed cell death
Dan-Lan Pu, Qi-Nan Wu
Frontiers in Endocrinology.2024;[Epub] CrossRef
Molecular subtypes of clear cell renal carcinoma based on PCD-related long non-coding RNAs expression: insights into the underlying mechanisms and therapeutic strategies
Han Wang, Yang Liu, Aifa Tang, Xiansheng Zhang
European Journal of Medical Research.2024;[Epub] CrossRef

Original Article

Thyroid
Long-Term Changes in the Mortality Rates of Thyroid Cancer in Korea: Analysis of Korean National Data from 1985 to 2020: Yun Mi Choi, Min-Ju Kim, Jiwoo Lee, Mi Kyung Kwak, Min Ji Jeon, Tae Yong Kim, Eun-Gyoung Hong, Won Bae Kim, Won Gu Kim; Endocrinol Metab. 2023;38(5):588-595. Published online September 8, 2023; DOI: https://doi.org/10.3803/EnM.2023.1723

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Background
Thyroid cancer mortality has been largely overlooked as relatively stable given the large gap between thyroid cancer incidence and mortality. This study evaluated long-term trends in age-standardized mortality rates (ASMRs) throughout Korea and compared them with mortality data reported by the Surveillance, Epidemiology, and End Results (SEER).
Methods
Cancer-specific mortality data from 1985 to 2020 were obtained from Statistics Korea. ASMRs from thyroid cancer were calculated based on the Korean mid-year resident registration population of 2005. We assessed SEER*Explorer and downloaded the mortality data.
Results
The ASMR increased from 0.19 to 0.77/100,000 between 1985 and 2002 but decreased continuously to 0.36/100,000 in 2020. The annual percent change (APC) in the ASMR between 1985 and 2003 and between 2003 and 2020 was 6.204 and −4.218, respectively, with similar patterns observed in both men and women. The ASMR of the SEER showed a modest increase from 1988 to 2016 and then stabilized. In subgroup analysis, the ASMR of the old age group (≥55 years) increased significantly from 0.82 in 1985 to 3.92/100,000 in 2002 (APC 6.917) but then decreased again to 1.86/100,000 in 2020 (APC −4.136). ASMRs according to the age group in the SEER showed a relatively stable trend even in the elderly group.
Conclusion
The ASMR of thyroid cancer in Korea had increased from 1985 to 2002 but has since been steadily decreasing. This trend was mainly attributed to elderly people aged 55 or over. The absolute APC value of Korea was much higher than that of the SEER.

Citations

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It Is Time to Understand the Additional Benefits of Active Surveillance for Low-Risk Papillary Thyroid Carcinoma
Kyeong Jin Kim
Endocrinology and Metabolism.2024; 39(1): 95. CrossRef
Thyroid cancer-specific mortality during 2005–2018 in Korea, aftermath of the overdiagnosis issue: a nationwide population-based cohort study
Kyeong Jin Kim, Jimi Choi, Sue K. Park, Young Joo Park, Sin Gon Kim
International Journal of Surgery.2024; 110(9): 5489. CrossRef
A Clinical Audit of Thyroid Hormonal Replacement After Total Thyroidectomy
Islam Mansy, Abdelfatah M Elsenosy, Eslam M Hassan, Mujtaba Zakria
Cureus.2023;[Epub] CrossRef

Review Article

Thyroid
Evaluation and Management of Bone Health in Patients with Thyroid Diseases: A Position Statement of the Korean Thyroid Association: A Ram Hong, Ho-Cheol Kang; Endocrinol Metab. 2023;38(2):175-189. Published online April 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1701

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Thyroid hormones play an important physiological role in maintaining adult bone structure and strength. Consequently, thyroid dysfunction is related to skeletal outcomes. Overt hyperthyroidism is an established cause of high bone turnover with accelerated bone loss, leading to osteoporosis and increased fracture risk. Hyperthyroidism induced by thyroid-stimulating hormone-suppressive therapy in patients with differentiated thyroid cancer is a cause of secondary osteoporosis. In contrast, there is a lack of evidence on the negative impact of hypothyroidism on bone health. Considering the clinical updates on the importance of bone health in thyroid dysfunction, the Task Force from the Clinical Practice Guidelines Development Committee of the Korean Thyroid Association recently developed a position statement on the evaluation and management of bone health of patients with thyroid diseases, particularly focused on endogenous hyperthyroidism and thyroid-stimulating hormone-suppressive therapy-associated hyperthyroidism in patients with differentiated thyroid cancer. Herein, we review the Korean Thyroid Association’s position statement on the evaluation and management of bone health associated with thyroid diseases.

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Diagnosis and therapeutic approach to bone health in patients with hypopituitarism
Justyna Kuliczkowska-Płaksej, Aleksandra Zdrojowy-Wełna, Aleksandra Jawiarczyk-Przybyłowska, Łukasz Gojny, Marek Bolanowski
Reviews in Endocrine and Metabolic Disorders.2024; 25(3): 513. CrossRef
Osteoporosis, Osteoarthritis, and Subchondral Insufficiency Fracture: Recent Insights
Shunichi Yokota, Hotaka Ishizu, Takuji Miyazaki, Daisuke Takahashi, Norimasa Iwasaki, Tomohiro Shimizu
Biomedicines.2024; 12(4): 843. CrossRef
Acute hypercalcemic crisis: A narrative review with a focus on pregnancy
Nadia Sabbah
Annales d'Endocrinologie.2024; 85(6): 604. CrossRef
Review on the protective activity of osthole against the pathogenesis of osteoporosis
Jincai Chen, Xiaofei Liao, Juwen Gan
Frontiers in Pharmacology.2023;[Epub] CrossRef
Estudio comparativo tras la cirugía tiroidea y otras variables asociadas al desarrollo de osteoporosis en una cohorte latinoamericana
María Paula Ciliberti Artavia, Juan Sebastián Theran León, Jaime Alberto Gómez Ayala, Valentina Cabrera Peña, Rafael Guillermo Parales Strauch, Edgar Camilo Blanco Pimiento, Luis Andres Dulcey Sarmiento, Juan Camilo Martínez, Juan Camilo Mayorca, María Al
Revista Salud y Desarrollo.2023; 7(2): e605. CrossRef

Original Articles

Thyroid Thyroid Cancer Screening
Diagnostic Performance of Ultrasound-Based Risk Stratification Systems for Thyroid Nodules: A Systematic Review and Meta-Analysis: Leehi Joo, Min Kyoung Lee, Ji Ye Lee, Eun Ju Ha, Dong Gyu Na; Endocrinol Metab. 2023;38(1):117-128. Published online February 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1670

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Background
This study investigated the diagnostic performance of biopsy criteria in four society ultrasonography risk stratification systems (RSSs) for thyroid nodules, including the 2021 Korean (K)-Thyroid Imaging Reporting and Data System (TIRADS).
Methods
The Ovid-MEDLINE, Embase, Cochrane, and KoreaMed databases were searched and a manual search was conducted to identify original articles investigating the diagnostic performance of biopsy criteria for thyroid nodules (≥1 cm) in four widely used society RSSs.
Results
Eleven articles were included. The pooled sensitivity and specificity were 82% (95% confidence interval [CI], 74% to 87%) and 60% (95% CI, 52% to 67%) for the American College of Radiology (ACR)-TIRADS, 89% (95% CI, 85% to 93%) and 34% (95% CI, 26% to 42%) for the American Thyroid Association (ATA) system, 88% (95% CI, 81% to 92%) and 42% (95% CI, 22% to 67%) for the European (EU)-TIRADS, and 96% (95% CI, 94% to 97%) and 21% (95% CI, 17% to 25%) for the 2016 K-TIRADS. The sensitivity and specificity were 76% (95% CI, 74% to 79%) and 50% (95% CI, 49% to 52%) for the 2021 K-TIRADS_1.5 (1.5-cm size cut-off for intermediate-suspicion nodules). The pooled unnecessary biopsy rates of the ACR-TIRADS, ATA system, EU-TIRADS, and 2016 K-TIRADS were 41% (95% CI, 32% to 49%), 65% (95% CI, 56% to 74%), 68% (95% CI, 60% to 75%), and 79% (95% CI, 74% to 83%), respectively. The unnecessary biopsy rate was 50% (95% CI, 47% to 53%) for the 2021 K-TIRADS_1.5.
Conclusion
The unnecessary biopsy rate of the 2021 K-TIRADS_1.5 was substantially lower than that of the 2016 K-TIRADS and comparable to that of the ACR-TIRADS. The 2021 K-TIRADS may help reduce potential harm due to unnecessary biopsies.

Citations

Citations to this article as recorded by

Accuracy of ultrasound in predicting thyroid malignancy: a comparative analysis of the ACR TI-RADS and ATA risk stratification systems
Shaza Samargandy, Aliaa H. Ghoneim
Archives of Endocrinology and Metabolism.2024;[Epub] CrossRef
Korean Thyroid Association Management Guidelines for Patients with Thyroid Nodules 2024
Young Joo Park, Eun Kyung Lee, Young Shin Song, Su Hwan Kang, Bon Seok Koo, Sun Wook Kim, Dong Gyu Na, Seung-Kuk Baek, So Won Oh, Min Kyoung Lee, Sang-Woo Lee, Young Ah Lee, Yong Sang Lee, Ji Ye Lee, Dong-Jun Lim, Leehi Joo, Yuh-Seog Jung, Chan Kwon Jung,
International Journal of Thyroidology.2024; 17(1): 208. CrossRef
Individual Ultrasonographic Characteristics of Thyroid Nodules and Their Cytopathological Correlation to Determine Malignancy Risk
Miguel Ángel Castilla Villanueva, Dania Guadalupe Solis Cano, Ana Amador Martínez, Marco Antonio Téliz Meneses, Jesús Baquera-Heredia, Cesar Eduardo Vallin Orozco, Mónica Loya Ceballos
Cureus.2024;[Epub] CrossRef
Improving the diagnostic performance of inexperienced readers for thyroid nodules through digital self-learning and artificial intelligence assistance
Si Eun Lee, Hye Jung Kim, Hae Kyoung Jung, Jin Hyang Jung, Jae-Han Jeon, Jin Hee Lee, Hanpyo Hong, Eun Jung Lee, Daham Kim, Jin Young Kwak
Frontiers in Endocrinology.2024;[Epub] CrossRef
Systemic therapy for differentiated thyroid cancer with distant metastasis
Eun Kyung Lee
Journal of the Korean Medical Association.2024; 67(7): 484. CrossRef
To Screen or Not to Screen?
Do Joon Park
Endocrinology and Metabolism.2023; 38(1): 69. CrossRef
The 2017 United States Preventive Services Task Force Recommendation for Thyroid Cancer Screening Is No Longer the Gold Standard
Ka Hee Yi
Endocrinology and Metabolism.2023; 38(1): 72. CrossRef
Thyroid Cancer Screening: How to Maximize Its Benefits and Minimize Its Harms
Jung Hwan Baek
Endocrinology and Metabolism.2023; 38(1): 75. CrossRef
2023 Korean Thyroid Association Management Guidelines for Patients with Thyroid Nodules
Young Joo Park, Eun Kyung Lee, Young Shin Song, Soo Hwan Kang, Bon Seok Koo, Sun Wook Kim, Dong Gyu Na, Seung-Kuk Baek, So Won Oh, Min Kyoung Lee, Sang-Woo Lee, Young Ah Lee, Yong Sang Lee, Ji Ye Lee, Dong-Jun Lim, Leehi Joo, Yuh-Seog Jung, Chan Kwon Jung
International Journal of Thyroidology.2023; 16(1): 1. CrossRef
Evaluation of the Appropriateness of Thyroid Fine-Needle Aspiration
Lairce Cristina Ribeiro Brito, Iara Beatriz De Carvalho Botêlho, Lanna Matos Silva Fernandes, Nayze Lucena Sangreman Aldeman, Uziel Nunes Silva
International Journal for Innovation Education and Research.2023; 11(6): 8. CrossRef

Thyroid Thyroid Cancer Screening
A Comprehensive Assessment of the Harms of Fine-Needle Aspiration Biopsy for Thyroid Nodules: A Systematic Review: Ji Yong Park, Wonsuk Choi, A Ram Hong, Jee Hee Yoon, Hee Kyung Kim, Ho-Cheol Kang; Endocrinol Metab. 2023;38(1):104-116. Published online February 27, 2023; DOI: https://doi.org/10.3803/EnM.2023.1669

7,200 View
213 Download
7 Web of Science
11 Crossref

Abstract PDF Supplementary Material PubReader ePub

Background
There have concerns related with the potential harms of fine-needle aspiration biopsy (FNAB). We aimed to summarize the clinical complications and evaluate the safety of FNAB.
Methods
Studies related with the harms of FNAB were searched on MEDLINE, Embase, Cochrane library, and KoreaMed from 2012 to 2022. Also, studies reviewed in the previous systematic reviews were evaluated. Included clinical complications were postprocedural pain, bleeding events, neurological symptoms, tracheal puncture, infections, post-FNAB thyrotoxicosis, and needle tract implantation of thyroid cancers.
Results
Twenty-three cohort studies were included in this review. Nine studies which were related with FNAB-related pain showed that most of the subjects had no or mild discomfort. The 0% to 6.4% of the patients had hematoma or hemorrhage after FNAB, according to 15 studies. Vasovagal reaction, vocal cord palsy, and tracheal puncture have rarely described in the included studies. Needle tract implantation of thyroid malignancies was described in three studies reporting 0.02% to 0.19% of the incidence rate.
Conclusion
FNAB is considered to be a safe diagnostic procedure with rare complications, which are mainly minor events. Thorough assessement of the patients’ medical condition when deciding to perform FNABs would be advisable to lower potential complications.

Citations

Citations to this article as recorded by

A Narrative Review of the 2023 Korean Thyroid Association Management Guideline for Patients with Thyroid Nodules
Eun Kyung Lee, Young Joo Park, Chan Kwon Jung, Dong Gyu Na
Endocrinology and Metabolism.2024; 39(1): 61. CrossRef
Fine-needle aspiration cytology for neck lesions in patients with antithrombotic/anticoagulant medications: systematic review and meta-analysis
Dongbin Ahn, Ji Hye Kwak, Gill Joon Lee, Jin Ho Sohn
European Radiology.2024; 34(10): 6843. CrossRef
2023 Update of the Korean Thyroid Association Guidelines for the Management of Thyroid Nodules
Eun Kyung Lee, Young Joo Park
Clinical Thyroidology®.2024; 36(4): 153. CrossRef
Korean Thyroid Association Guidelines on the Management of Differentiated Thyroid Cancers; Part II. Follow-up Surveillance after Initial Treatment 2024
Mijin Kim, Ji-In Bang, Ho-Cheol Kang, Sun Wook Kim, Dong Gyu Na, Young Joo Park, Youngduk Seo, Young Shin Song, So Won Oh, Sang-Woo Lee, Eun Kyung Lee, Ji Ye Lee, Dong-Jun Lim, Ari Chong, Yun Jae Chung, Chae Moon Hong, Min Kyoung Lee, Bo Hyun Kim
International Journal of Thyroidology.2024; 17(1): 115. CrossRef
Needle size for thyroid fine needle aspiration cytology. A single institution experience
Pasquale Cianci, Rocco Tumolo, Ivana Conversano, Damiano Travaglia, Giuseppe Trigiante, Giuliano Lantone, Vincenzo Lizzi, Miriam Cappiello, Marco Montagna, Fabio Pio Curci, Enrico Restini
Frontiers in Surgery.2024;[Epub] CrossRef
Important Role of Ultrasonography Immediately After Fine-Needle Aspiration Biopsy of Thyroid Nodules to Detect Acute Transient Thyroid Swelling
Kouichi Yoshimoto, Shinya Satoh, Hisakazu Shindo, Kento Katsuyama, Daisuke Tatsushima, Takashi Fukuda, Seigo Tachibana, Yusuke Mori, Hiroshi Takahashi, Yuji Nagayama, Hiroyuki Yamashita
Cureus.2024;[Epub] CrossRef
Assessing the feasibility of ChatGPT-4o and Claude 3-Opus in thyroid nodule classification based on ultrasound images
Ziman Chen, Nonhlanhla Chambara, Chaoqun Wu, Xina Lo, Shirley Yuk Wah Liu, Simon Takadiyi Gunda, Xinyang Han, Jingguo Qu, Fei Chen, Michael Tin Cheung Ying
Endocrine.2024;[Epub] CrossRef
To Screen or Not to Screen?
Do Joon Park
Endocrinology and Metabolism.2023; 38(1): 69. CrossRef
Thyroid Cancer Screening: How to Maximize Its Benefits and Minimize Its Harms
Jung Hwan Baek
Endocrinology and Metabolism.2023; 38(1): 75. CrossRef
Evaluation of the Appropriateness of Thyroid Fine-Needle Aspiration
Lairce Cristina Ribeiro Brito, Iara Beatriz De Carvalho Botêlho, Lanna Matos Silva Fernandes, Nayze Lucena Sangreman Aldeman, Uziel Nunes Silva
International Journal for Innovation Education and Research.2023; 11(6): 8. CrossRef
A Retrospective Analysis of Ultrasound-Guided Fine-Needle Aspiration Biopsy for Thyroid Diseases Indicating Ciliated Columnar Epithelium
Yoshiyuki SAITO, Wataru KITAGAWA, Ryohei KATOH, Takashi AMANO, Ai MATSUI, Yoko KUGA, Chie MASAKI, Junko AKAISHI, Ritsuko OKAMURA, Akifumi SUZUKI, Kenichi MATSUZU, Mitsuji NAGAHAMA, Kiminori SUGINO, Koichi ITO
Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association).2023; 84(12): 1835. CrossRef

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