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Lee-Saxton YJ, Egan CE, Bratton BA, Thiesmeyer JW, Greenberg JA, Marshall TE, Tumati A, Romero-Arenas M, Beninato T, Zarnegar R, Scognamiglio T, Fahey TJ, Finnerty BM. Low Mitotic Activity in Papillary Thyroid Cancer: A Marker for Aggressive Features and Recurrence. J Clin Endocrinol Metab 2024:dgae203. [PMID: 38554391 DOI: 10.1210/clinem/dgae203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/01/2024]
Abstract
CONTEXT The significance of low mitotic activity in papillary thyroid cancer (PTC) is largely undefined. OBJECTIVE We aimed to determine the behavioral landscape of PTC with low mitotic activity compared to that of no- and high-mitotic activity. METHODS A single-institution consecutive series of PTC patients from 2018-2022 was reviewed. Mitotic activity was defined as no mitoses, low (1-2 mitoses/2 mm2) or high (≥3 mitoses/2 mm2) per the World Health Organization. The 2015 American Thyroid Association risk stratification was applied to the cohort, and clinicopathologic features were compared between groups. For patients with ≥6 months follow-up, Cox regression analyses for recurrence were performed. RESULTS 640 PTCs were included - 515 (80.5%) no mitotic activity, 110 (17.2%) low mitotic activity, and 15 (2.3%) high mitotic activity. Overall, low mitotic activity exhibited rates of clinicopathologic features including vascular invasion, gross extrathyroidal extension, and lymph node metastases in between those of no- and high-mitotic activity. PTCs with low mitotic activity had higher rates of intermediate- and high-risk ATA risk stratification compared to those with no mitotic activity (p < 0.001). Low mitotic activity PTCs also had higher recurrence rates (15.5% vs. 4.5%, p < 0.001). Low mitotic activity was associated with recurrence, independent of the ATA risk stratification (HR 2.96; 95% CI 1.28-6.87, p = 0.01). CONCLUSIONS Low mitotic activity is relatively common in PTC and its behavior lies within a spectrum between no- and high-mitotic activity. Given its association with aggressive clinicopathologic features and recurrence, low mitotic activity should be considered when risk stratifying PTC patients for recurrence.
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Affiliation(s)
- Yeon J Lee-Saxton
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Caitlin E Egan
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Brenden A Bratton
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Jessica W Thiesmeyer
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Jacques A Greenberg
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Teagan E Marshall
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Abhinay Tumati
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | | | - Toni Beninato
- Department of Surgery, Rutgers-Robert Wood Johnson Medical School, Cancer Institute of New Jersey, New Brunswick, NJ
| | - Rasa Zarnegar
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Theresa Scognamiglio
- Department of Pathology, New York Presbyterian Weill Cornell Medicine, New York, NY USA
| | - Thomas J Fahey
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
| | - Brendan M Finnerty
- Department of Surgery, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065
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Cerci MO, de Assumpção LVM, Zantut-Wittmann DE. Impact of the number of intermediate risk factors on outcome of papillary thyroid cancer. Endocrine 2024; 83:442-448. [PMID: 37698810 DOI: 10.1007/s12020-023-03496-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/15/2023] [Indexed: 09/13/2023]
Abstract
PURPOSE The 2015 American Thyroid Association risk stratification system (2015-RSS) is used to assess the tumor recurrence rate and guide the initial treatment. At the current moment, patients with one or multiple intermediate risk factors (IRF) have the same treatment. This study was conducted to evaluate the impact of the number of IRF characteristics on tumor persistence or recurrence rates. METHODS Patients with intermediate risk papillary thyroid cancer (PTC) were selected and analyzed, furthermore, they were divided into two subgroups, one with 1-2 IRF and another with ≥3 IRF. Those data were analyzed in relation to response to therapy at the end of the first year and in last appointment, time to reach non evidence of disease (NED) state and time in NED state. RESULTS A total of 257 patients were evaluated. Extrathyroidal invasion, vascular invasion, the total number of IRF and the subgroup of ≥3 IRF were associated with non-excellent response in last consultation; IRF lymph node metastasis was associated with non-excellent response in the first year and in last appointment and prolonged time in NED state; vascular invasion was associated with a shorter time in NED state; total number of IRF and aggressive histology were related to delay in the achievement of NED state. CONCLUSIONS Higher number of IRF was a predictive factor of non-excellent response in the last visit and was associated with longer time to reach the NED state. Those data suggest a benefit from closer follow-up and more intensive treatment in these patients.
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Affiliation(s)
- Murilo Oliveira Cerci
- Endocrinology Division, Department of Internal Medicine, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Lígia Vera Montali de Assumpção
- Endocrinology Division, Department of Internal Medicine, School of Medical Sciences, University of Campinas, São Paulo, Brazil
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Ilera V, Califano I, Cavallo A, Faure E, Vázquez A, Pitoia F. Is radioiodine ablation with 1.1 GBq (30 mCi) 131I necessary in low-risk thyroid cancer patients? Results from a long-term follow-up prospective study. Endocrine 2023; 80:606-611. [PMID: 36988853 DOI: 10.1007/s12020-023-03306-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/10/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND In patients with low-risk differentiated thyroid cancer (DTC), remnant ablation with radioiodine (RA) after total thyroidectomy (TT) is controversial. No benefits have been demonstrated in terms of mortality or disease-free survival. Recent evidence found that RA did not improve mid-term outcomes. PURPOSE To evaluate initial response to treatment and long-term follow-up status in low-risk DTC patients after TT vs. TT + RA with 131I 1.11 GBq (30 mCi). METHODS Prospective multicenter non-randomized study; 174 low-risk DTC that underwent TT were recruited an divided in two groups according to RA (87 ablated and 87 non-ablated). Response to treatment was evaluated at 6-18 months after thyroidectomy and at the end of follow-up with measurements of thyroglobulin, and anti-thyroglobulin antibodies levels, and neck ultrasonography. RESULTS Baseline characteristics of both groups were similar. Ablated patients: median age 45.5 years, 84% females, 95.4% papillary thyroid carcinoma (PTC), mean tumor size 16 mm; non-ablated: median age 45 years, 88.5% females, 96.6% PTC, mean tumor size 14 mm. Response to initial treatment was similar between both groups, with < 2% of structural incomplete response. Final status was evaluated in 139 cases (median follow-up of 60 months). Among ablated patients, 82.8% had no evidence of disease (NED), 12% had an indeterminate response (IR) and 5% a biochemical incomplete response (BIR). Non-ablated patients had NED in 90%, IR in 8.7% and BIR in 1.2%. No statistical difference was found between groups (p = 0.29). No patient had evidence of structural disease at the end of follow-up. CONCLUSIONS Our findings support the recommendation against routine RA in low-risk DTC patients.
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Affiliation(s)
- Verónica Ilera
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Inés Califano
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Andrea Cavallo
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Eduardo Faure
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Adriana Vázquez
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina
| | - Fabián Pitoia
- Thyroid Department of Sociedad Argentina de Endocrinología y Metabolismo, Díaz Vélez 3889, (C1200AAF), Ciudad Autónoma de Buenos Aires, Argentina.
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Wu J, Hu XY, Ghaznavi S, Kinnear S, Symonds CJ, Grundy P, Parkins VM, Sharma P, Lamb D, Khalil M, Hyrcza M, Chandarana SP, Pasieka JL, Harvey A, Warshawski J, Hart R, Deutschman M, Randall DR, Paschke R. The Prospective Implementation of the 2015 ATA Guidelines and Modified ATA Recurrence Risk Stratification System for Treatment of Differentiated Thyroid Cancer in a Canadian Tertiary Care Referral Setting. Thyroid 2022; 32:1509-1518. [PMID: 36226405 DOI: 10.1089/thy.2022.0055] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Objective: To present clinical outcomes of the prospective implementation of the 2015 American Thyroid Association (ATA) guidelines for the management of thyroid nodules and differentiated thyroid cancer (DTC) using the modified ATA recurrence risk (RR) stratification system. Methods: We prospectively analyzed 612 patients with DTC treated between April 2017 and December 2021 in Calgary, Alberta. Each patient was prospectively assigned a modified ATA RR and American Joint Committee Cancer 8th edition stage. Initial risk stratification and consideration of the 2015 ATA guidelines guided surgical management as well as the indication for and dose of radioiodine (RAI) and other adjuvant therapies. Patients were assessed for their response to treatment (RTT) at 2-years postoperatively. Results: There were 479 patients who had 2-year follow-up data and were included in the study. Of these patients, there were 253 (53%) low-, 129 (27%) intermediate-, and 97 (20%) high-RR patients. Of these, 227 patients (47%) underwent total thyroidectomy (TTX) plus RAI, 178 (37%) underwent TTX only, and 74 (16%) underwent lobectomy. The RTT at 2 years was excellent for 89% (66) of patients with lobectomy, 84% (149) for TTX only, and 53% (121) for TTX plus RAI. Among 253 patients who were deemed low RR, 85% (216) had excellent RTT, 13% (32) indeterminate RTT, 2% (4) biochemical incomplete RTT, and 1 patient had structural incomplete RTT. The intermediate RR group had the following RTT outcomes: 64% (83) excellent, 23% (30) indeterminate, 6% (7) biochemical incomplete, and 7% (9) structural incomplete. The high RR group had the worst RTT outcomes, with 38% (37) excellent, 19% (18) indeterminate, 10% (10) biochemical incomplete, and 33% (32) structural incomplete RTT. Conclusions: The 2015 ATA RR stratification system is useful for predicting disease status at 2-year post-treatment in patients with DTC. The 2015 ATA guidelines and modified ATA RR stratification treatment recommendations may reduce thyroid cancer overtreatment by including lobectomy as a definitive treatment option for low-risk thyroid cancers and selective use of RAI for intermediate and high-risk patients.
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Affiliation(s)
- Jiahui Wu
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Xun Yang Hu
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Sana Ghaznavi
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Susan Kinnear
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Christopher John Symonds
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Peter Grundy
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Vicky M Parkins
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Medicine, Section of Endocrinology, University of Calgary, Calgary, Canada
| | - Priyanka Sharma
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Debbie Lamb
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Moosa Khalil
- Pathology and Laboratory Medicine and Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Martin Hyrcza
- Pathology and Laboratory Medicine and Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Shamir P Chandarana
- Arnie Charbonneau Cancer Institute, Departments of Cumming School of Medicine, University of Calgary, Calgary, Canada
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Janice L Pasieka
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Adrian Harvey
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Joseph Warshawski
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Robert Hart
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Michael Deutschman
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Derrick R Randall
- Surgery, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Ralf Paschke
- Department of Medicine, Section of Endocrinology, Oncology, Pathology and Laboratory Medicine, Biochemistry and Molecular Biology, and Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada
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Wijewardene A, Gill AJ, Gild M, Learoyd DL, Glover AR, Sywak M, Sidhu S, Roach P, Schembri G, Hoang J, Robinson B, Tacon L, Clifton-Bligh R. A Retrospective Cohort Study with Validation of Predictors of Differentiated Thyroid Cancer Outcomes. Thyroid 2022; 32:1201-1210. [PMID: 35620896 DOI: 10.1089/thy.2021.0563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: The goal of radioactive iodine (RAI) in differentiated thyroid cancer (DTC) is to treat metastasis and reduce recurrence risk. International guidelines provide broad risk stratification to aid treatment decisions, but a more nuanced approach to individualize care is warranted. We developed a predictive risk model for DTC. Methods: We performed a retrospective multivariable analysis of 899 patients who received RAI after thyroidectomy at a quaternary center in Australia between 2008 and 2016. Collected data included age, gender, histology, stimulated thyroglobulin (sTg), and 8th American Joint Committee Cancer (AJCC) staging. The ATA Modified Initial Risk (ATA) was calculated retrospectively. Recurrence was defined as clinically significant progression requiring either surgical intervention or administration of a second activity of RAI. Synchronous metastasis was defined as distant metastasis (i.e., outside of the neck) that was present at the time of diagnosis on structural imaging or initial post-iodine treatment scan. The features significantly associated with synchronous metastasis or recurrence were employed in the generation of a predictive risk model. A separate cohort of 393 patients who received RAI in 2017-2021 was used for validation. Results: On multivariate analysis, sTg ≥10 μg/L, extrathyroidal extension (ETE) and lymph node involvement predicted recurrence. Independent of ATA, patients with sTg ≥10 μg/L had a shorter disease-free survival (DFS) than those with sTg <10 μg/L (p < 0.001). The ETE stratified by four histological categories was significantly associated with worse DFS (p < 0.001). In a subset of patients, the presence of thyroglobulin antibody (TgAb) did not influence recurrence in patients with sTg <10 μg/L. On multivariate analysis, widespread ETE, sTg ≥10 μg/L, multifocal papillary thyroid cancer and follicular thyroid cancer were positively associated with synchronous metastasis. A predictive risk model was developed to estimate synchronous metastasis/recurrence risk and validated successfully in the second cohort. Conclusions: Our novel predictive risk model modifies and extends ATA stratification by including sTg and ETE, which we found to be independent predictors of both recurrence and synchronous metastasis in DTC.
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Affiliation(s)
- Ayanthi Wijewardene
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Faculty of Medicine, The University of Sydney, Sydney, Australia
| | - Anthony J Gill
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, Australia
| | - Matti Gild
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Faculty of Medicine, The University of Sydney, Sydney, Australia
| | - Diana L Learoyd
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
| | - Anthony Robert Glover
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Mark Sywak
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Stan Sidhu
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Paul Roach
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Geoffrey Schembri
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Jeremy Hoang
- Faculty of Medicine, The University of Sydney, Sydney, Australia
- Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Bruce Robinson
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Faculty of Medicine, The University of Sydney, Sydney, Australia
| | - Lyndal Tacon
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Faculty of Medicine, The University of Sydney, Sydney, Australia
| | - Roderick Clifton-Bligh
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Faculty of Medicine, The University of Sydney, Sydney, Australia
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Kanokwongnuwat W, Larbcharoensub N, Sriphrapradang C, Suppasilp C, Thamnirat K, Sakulpisuti C, Kositwattanarerk A, Utamakul C, Sritara C, Chamroonrat W. Risk-stratified papillary thyroid microcarcinoma: post-operative management and treatment outcome in a single center. Endocrine 2022; 77:134-142. [PMID: 35476179 PMCID: PMC9242919 DOI: 10.1007/s12020-022-03060-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 04/15/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE This article aims to review and assess the post-operative management and treatment outcomes of papillary thyroid microcarcinoma (PTMC) in risk-stratified patients. METHODS We retrospectively analyzed the data of PTMC patients who underwent thyroid surgery with or without radioactive iodine treatment (RAI) in a single center between January 2011 and December 2017. Demographic and clinicopathologic data were collected. Risk stratification according to the 2015 American Thyroid Association guideline was applied. RESULTS Three hundred forty PTMC patients were included. Post-operative RAI was performed in 216/340 (63.53%) patients. In the non-RAI scenario, there were 122 low-risk and two intermediate-risk patients. In total, 261 (76.77%), 57 (16.76%), and 22 (6.47%) patients were classified as low, intermediate, and high risk, respectively. With a median follow-up time of 36 months (interquartile range: 23, 52), we found unfavorable outcomes (evidenced by imaging or out-of-range serum tumor marker levels: high thyroglobulin [Tg] or rising Tg antibody [TgAb] levels) in 8/340 (2.35%) patients, all of which received RAI. PTMC patients with unfavorable outcomes were stratified as low risk (4/261 [1.53%]), intermediate risk (1/57 [1.75%]), or high risk (3/22 [13.64%]). One death occurred in a patient with initial distant metastasis in the high-risk group. Initial high-risk stratification and initial stimulated Tg (of at least 10 ng/mL) were demonstrated as independent predictors for PTMC unfavorable outcomes (persistent or recurrent disease). Five patients with unfavorable outcomes (four with persistent disease and one with recurrent disease) had abnormal Tg or TgAb values despite unremarkable imaging findings. Moreover, 79/124 (63.71%) patients in the non-RAI scenario were only followed up with neck ultrasound. CONCLUSIONS In general, at least 98% of low-risk and intermediate-risk PTMC patients showed favorable outcomes without persistent or recurrent disease, defined by either imaging or serum tumor markers. Nevertheless, aggressive disease could occur in few PTMC patients. Decisions on post-operative management and follow-up may be guided by initial high-risk stratification and initial stimulated Tg levels (≥10 ng/mL) as independent predictors for PTMC unfavorable outcomes. Monitoring using both imaging and serum tumor markers is crucial and should be implemented for patients with PTMC.
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Affiliation(s)
- Wasit Kanokwongnuwat
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Division of Nuclear Medicine, Department of Radiology, Prapokklao Hospital, Chanthaburi, Thailand
| | - Noppadol Larbcharoensub
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chutintorn Sriphrapradang
- Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Chaiyawat Suppasilp
- Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kanungnij Thamnirat
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chaninart Sakulpisuti
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Arpakorn Kositwattanarerk
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chirawat Utamakul
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chanika Sritara
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Wichana Chamroonrat
- Division of Nuclear Medicine, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
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