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Giovanella L, Tuncel M, Aghaee A, Campenni A, De Virgilio A, Petranović Ovčariček P. Theranostics of Thyroid Cancer. Semin Nucl Med 2024; 54:470-487. [PMID: 38503602 DOI: 10.1053/j.semnuclmed.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 03/21/2024]
Abstract
Molecular imaging is pivotal in evaluating and managing patients with different thyroid cancer histotypes. The existing, pathology-based, risk stratification systems can be usefully refined, by incorporating tumor-specific molecular and molecular imaging biomarkers with theranostic value, allowing patient-specific treatment decisions. Molecular imaging with different radioactive iodine isotopes (ie, I131, I123, I124) is a central component of differentiated carcinoma (DTC)'s risk stratification while [18F]F-fluorodeoxyglucose ([18F]FDG) PET/CT is interrogated about disease aggressiveness and presence of distant metastases. Moreover, it is particularly useful to assess and risk-stratify patients with radioiodine-refractory DTC, poorly differentiated, and anaplastic thyroid cancers. [18F]F-dihydroxyphenylalanine (6-[18F]FDOPA) PET/CT is the most specific and accurate molecular imaging procedure for patients with medullary thyroid cancer (MTC), a neuroendocrine tumor derived from thyroid C-cells. In addition, [18F]FDG PET/CT can be used in patients with more aggressive clinical or biochemical (ie, serum markers levels and kinetics) MTC phenotypes. In addition to conventional radioiodine therapy for DTC, new redifferentiation strategies are now available to restore uptake in radioiodine-refractory DTC. Moreover, peptide receptor theranostics showed promising results in patients with advanced and metastatic radioiodine-refractory DTC and MTC, respectively. The current appropriate role and future perspectives of molecular imaging and theranostics in thyroid cancer are discussed in our present review.
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Affiliation(s)
- Luca Giovanella
- Department of Nuclear Medicine, Gruppo Ospedaliero Moncucco, Lugano, Switzerland; Clinic for Nuclear Medicine, University Hospital Zürich, Zürich, Switzerland.
| | - Murat Tuncel
- Department of Nuclear Medicine, Hacettepe University, Ankara, Turkey
| | - Atena Aghaee
- Department of Nuclear Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alfredo Campenni
- Nuclear Medicine Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Armando De Virgilio
- Department of Head and Neck Surgery Humanitas Research Hospital, Rozzano, Italy
| | - Petra Petranović Ovčariček
- Department of Oncology and Nuclear Medicine, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
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Petranović Ovčariček P, Calderoni L, Campenni A, Fanti S, Giovanella L. Molecular imaging of thyroid and parathyroid diseases. Expert Rev Endocrinol Metab 2024; 19:317-333. [PMID: 38899737 DOI: 10.1080/17446651.2024.2365776] [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: 03/24/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
INTRODUCTION Molecular imaging of thyroid and parathyroid diseases has changed in recent years due to the introduction of new radiopharmaceuticals and new imaging techniques. Accordingly, we provided an clinicians-oriented overview of such techniques and their indications. AREAS COVERED A review of the literature was performed in the PubMed, Web of Science, and Scopus without time or language restrictions through the use of one or more fitting search criteria and terms as well as through screening of references in relevant selected papers. Literature up to and including December 2023 was included. Screening of titles/abstracts and removal of duplicates was performed and the full texts of the remaining potentially relevant articles were retrieved and reviewed. EXPERT OPINION Thyroid and parathyroid scintigraphy remains integral in patients with thyrotoxicosis, thyroid nodules, differentiated thyroid cancer and, respectively, hyperparathyroidism. In the last years positron-emission tomography with different tracers emerged as a more accurate alternative in evaluating indeterminate thyroid nodules [18F-fluorodeoxyglucose (FDG)], differentiated thyroid cancer [124I-iodide, 18F-tetrafluoroborate, 18F-FDG] and hyperparathyroidism [18F-fluorocholine]. Other PET tracers are useful in evaluating relapsing/advanced forms of medullary thyroid cancer (18F-FDOPA) and selecting patients with advanced follicular and medullary thyroid cancers for theranostic treatments (68Ga/177Ga-somatostatin analogues).
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Affiliation(s)
- Petra Petranović Ovčariček
- Department of Oncology and Nuclear Medicine, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Letizia Calderoni
- Nuclear Medicine Division, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola, Bologna, Italy
- Nuclear Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Alfredo Campenni
- Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, Unit of Nuclear Medicine, University of Messina, Messina, Italy
| | - Stefano Fanti
- Nuclear Medicine Division, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola, Bologna, Italy
- Nuclear Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Luca Giovanella
- Department of Nuclear Medicine, Gruppo Ospedaliero Moncucco, Lugano, Switzerland
- Clinic for Nuclear Medicine, University Hospital of Zürich, Zürich, Switzerland
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He Z, Sa R, Zhang K, Wang J, Qiu X, Chen L. Optimizing the indication of initial radioiodine oncolytic treatment for metastatic differentiated thyroid cancer by diagnostic 131I scan. Clin Radiol 2024; 79:e949-e956. [PMID: 38641445 DOI: 10.1016/j.crad.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/27/2024] [Accepted: 03/25/2024] [Indexed: 04/21/2024]
Abstract
AIM As a classic theranostic radiopharmaceutical, radioiodine (131I) has been utilized in the management of differentiated thyroid cancer (DTC) for more than 8 decades, and the refinement of its clinical practice has been raised recently. This study was conducted to evaluate the efficiency of a diagnostic (Dx) 131I scan in optimizing the indication of initial radioiodine oncolytic treatment (ROT) for metastatic DTC by predicting therapeutic outcomes. RESULTS A total of 100 patients (Dx positive, n=29; Dx negative, n=71) were eligible for patient-based analysis. The matching rate was 83.0% between the Dx and the post-therapeutic scans (kappa = 0.648, P<0.001). The biochemical remission rate and structural shrinkage rate induced by the initial ROT in the Dx-positive group were, respectively, greater than those in the Dx-negative group (83.3% vs. 17.4%, P<0.001; 37.9% vs. 4.2%, P<0.001). Notably, the predictive values of positive Dx scans for ROT responsiveness and negative Dx scans for ROT nonresponsiveness reached up to 89.7% and 84.5%, respectively. CONCLUSION This Dx scan approach seems viable in characterizing the 131I-avidity of metastatic DTC and plays a pivotal role in optimizing the indication of initial ROT for metastatic DTC.
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Affiliation(s)
- Z He
- Department of Nuclear Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600(#) Yishan Rd, Shanghai 200233, People's Republic of China.
| | - R Sa
- Department of Nuclear Medicine, The First Hospital of Jilin University, 1(#) Xinmin St, Changchun 130021, People's Republic of China.
| | - K Zhang
- Department of Nuclear Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600(#) Yishan Rd, Shanghai 200233, People's Republic of China.
| | - J Wang
- Department of Nuclear Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600(#) Yishan Rd, Shanghai 200233, People's Republic of China.
| | - X Qiu
- Department of Nuclear Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600(#) Yishan Rd, Shanghai 200233, People's Republic of China.
| | - L Chen
- Department of Nuclear Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600(#) Yishan Rd, Shanghai 200233, People's Republic of China.
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Mulugeta PG, Chi AW, Anderson TM. Molecular Imaging and Therapy of Differentiated Thyroid Carcinoma in Adults. Cancer J 2024; 30:194-201. [PMID: 38753754 DOI: 10.1097/ppo.0000000000000713] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
ABSTRACT Differentiated thyroid carcinoma (DTC) has been increasing in incidence in the United States over the last several decades, although mortality rates have remained low. Radioactive iodine therapy (RAI-T) has been a mainstay of treatment for DTC since the 1940s. Imaging of DTC before and after RAI-T primarily focuses on molecular imaging of the sodium iodide symporter. The expanding understanding of the molecular profile of DTC has increased available treatment options. Incorporation of risk stratification to treatment approaches has led to deintensification of both surgical and nonsurgical treatments, leading to decreased morbidity without compromising disease control.
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Affiliation(s)
- Philipose Getachew Mulugeta
- From the Associate Professor of Clinical Radiology, Clinical Director, Division of Nuclear Medicine Imaging and Therapy, Hospital of the University of Pennsylvania, Department of Radiology, 3400 Spruce Street, 1 Silverstein
| | - Anthony W Chi
- Staff Pathologist, Subchief for Molecular Pathology, Head & Neck Pathology and Hematology, Mid-Atlantic Permanente Medical Group, Regional Laboratory, 611 Executive Blvd, Rockville, MD 20852; and
| | - Thomas Michael Anderson
- Assistant Professor, Director of Therapeutic Nuclear Medicine, Department of Radiology, UNM School of Medicine, MSC10 5530, 1 University of New Mexico, Albuquerque, NM 87131
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Mihailović J. Pre-Treatment and Post-Treatment I-131 Imaging in Differentiated Thyroid Carcinoma. J Clin Med 2024; 13:1984. [PMID: 38610749 PMCID: PMC11012677 DOI: 10.3390/jcm13071984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Radioiodine imaging in initial perioperative settings, after the total thyroidectomy, includes pre-treatment and post-treatment radioiodine imaging. While the benefit of post-treatment whole-body imaging (PT-WBI) is well established, the role of diagnostic whole-body imaging (dx WBI), prior to radioiodine (I-131) ablative or therapeutic doses, is controversial. Dx WBI has been abandoned in most nuclear medicine centers long ago. Planar low-dose dxWBI provides the volume of postoperative thyroid remnants, but it cannot detect occult metastatic foci in the neck. The modern integrated multimodality, i.e., SPECT/CT imaging, provides three dimensional images and accurate anatomic/metabolic data. This hybrid technology offers better spatial resolution but not better sensitivity. Dx WBI has low theranostic power because of the radioiodine indifference and low detection sensitivity for small-volume nodal disease in the neck. Since dx WBI cannot clarify the paratracheal cervical uptake, thyroid remnants may be easily misinterpreted as nodal disease, leading to a false N upstaging (from N0 stage to N1 stage) in DTC patients. Post-ablation I-131 imaging has a significant role in the initial staging of radioiodine-avid DTC and in the identification of non-radioiodine avid tumors. Additionally, SPECT/CT in the post-treatment setting provides more accurate initial TNM staging and better risk stratification of DTC patients. Post-treatment I-131 imaging is obligatory and must be performed in all DTC patients who receive radioiodine treatment.
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Affiliation(s)
- Jasna Mihailović
- Department of Nuclear Medicine, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia; ; Tel.: +381-63-526835
- Division of Nuclear Medicine, Oncology Institute of Vojvodine, Put dr Goldmana 4, 21204 Sremska Kamenica, Serbia
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Ran B, Shang J, Chen Y, Zhou M, Li H, He W, Li Y, Cai Q, Guo B, Gong J, Xu H. The value of the first postoperative diagnostic I-131 scan in patients with papillary thyroid carcinoma. J Cancer Res Clin Oncol 2024; 150:80. [PMID: 38319395 PMCID: PMC10847066 DOI: 10.1007/s00432-023-05581-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/25/2023] [Indexed: 02/07/2024]
Abstract
OBJECTIVE To explore the feasibility of the postoperative diagnostic 131I whole-body planar scans (Dx-WBS) in papillary thyroid cancer (PTC) patients, and to clarify its value for accurate staging, risk stratification, and postoperative radioactive iodine (RAI) treatment management. DESIGN Retrospective study from 2015 to 2021. SETTING A total of 1294 PTC patients in the tertiary referral hospital. PARTICIPANTS Patients with differentiated thyroid cancer who underwent total/subtotal thyroidectomy were included. Patients with non-PTC pathological type, non-first RAI treatment, and incomplete data such as Dx-WBS and postablation WBS (Rx-WBS) were excluded. METHODS The diagnostic efficacy of Dx-WBS was calculated with Rx-WBS as the reference. All patients were initially staged by the 8th edition of TNM staging, and risk stratification was performed based on clinical and pathological information. After Dx-WBS, the risk stratification was re-evaluated, and management was reconfirmed. RESULTS The detection rates of Dx-WBS for residual thyroid, cervical lymph nodes, upper mediastinal lymph nodes, lung, and bone distant metastasis were 97.6%, 78.3%, 82.1%, 66.7%, and 61.2%, respectively. The risk stratification of 113 patients (8.7%) changed after Dx-WBS, of which 107 patients changed from low to intermediate risk, 2 from low to high risk, and 4 from medium to high risk. A total of 241 patients (18.6%) adjusted the RAI regimen after Dx-WBS. CONCLUSION This study confirms the diagnostic efficacy of the postoperative Dx-WBS in PTC patients and the value of Dx-WBS in accurately assessing risk stratification, as well as assisting in determining RAI treatment.
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Affiliation(s)
- Bingyu Ran
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Jingjie Shang
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Yong Chen
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Miaoli Zhou
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Huihu Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Wenjun He
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Yingxin Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Qijun Cai
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Bin Guo
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Jian Gong
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.
| | - Hao Xu
- Department of Nuclear Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.
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Dai H, Qi Z, Huang S, Qi M, Huang R. Comparative Study of Initial Post-Therapeutic 131I Single-Photon Emission Computed Tomography/Computed Tomography and Reoperation for the Detection of Residual Lymph Node Metastasis in Patients With Papillary Thyroid Cancer. Endocr Pract 2023; 29:97-103. [PMID: 36356838 DOI: 10.1016/j.eprac.2022.11.001] [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: 07/29/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To assess the diagnostic performance of initial post-therapeutic 131I single-photon emission computed tomography/computed tomography (SPECT/CT) compared with that of reoperation in detecting residual lymph node metastasis (LNM). METHODS Patients with iodine-avid LNM detected on the initial post-therapeutic 131I SPECT/CT and who underwent reoperative dissection within 6 months were included. LNMs (numbers and locations) detected via both methods were compared. The American Thyroid Association dynamic risk stratification was performed for patients receiving second radioactive iodine therapy after reoperation. RESULTS Fifty-three patients with 95 iodine-avid LNMs detected by 131I SPECT/CT were enrolled. Fifty-one (96.2%) patients had 212 LNMs confirmed by reoperation (P = .004). The sensitivity and specificity of 131I SPECT/CT in detecting LNM were 44.8% (95/212) and 91.6% (87/95), respectively. The location frequency of residual LNMs found by 131I SPECT/CT was similar to that of reoperation (P = .057). Thirty-two patients received a second radioactive iodine treatment, and 6 (18.8%) patients still had residual iodine-avid LNM on SPECT/CT. Therapeutic response was evaluated by American Thyroid Association dynamic risk stratification in 16 patients. The number of patients with structural incomplete response, biochemical incomplete response, indeterminate response, and excellent response was 4 (23.5%), 4 (23.5%), 5 (29.4%), and 3 (17.6%), respectively. CONCLUSION 131I SPECT/CT has high specificity but relatively low sensitivity in detecting all residual LNMs. Approximately 80% of patients were rendered structurally disease free after reoperation.
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Affiliation(s)
- Hongyuan Dai
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Zhibing Qi
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China; Department of Nuclear Medicine, Jiujiang First People's Hospital, Jiujiang, Jiangxi, People's Republic of China
| | - Shuhui Huang
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Mengfang Qi
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Rui Huang
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
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Marongiu A, Nuvoli S, De Vito A, Rondini M, Spanu A, Madeddu G. A Comparative Follow-Up Study of Patients with Papillary Thyroid Carcinoma Associated or Not with Graves' Disease. Diagnostics (Basel) 2022; 12:diagnostics12112801. [PMID: 36428861 PMCID: PMC9689017 DOI: 10.3390/diagnostics12112801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Whether papillary carcinoma (PC) behavior is more aggressive in Graves’ disease (GD) patients than PC cases without GD is controversial. We retrospectively enrolled 33 thyroidectomized PC/GD patients during long-term follow-up, 23/33 without risk factors at surgery, and 18/33 microcarcinomas; 312 PC euthyroid-matched patients without risk factors served as controls. A total of 14/33 (42.4%) PC/GD patients, 4 with and 10 without risk factors at diagnosis, 6 with microcarcinoma, underwent metastases during follow-up. In controls, metastases in 21/312 (6.7%) were ascertained. Considering 10/23 PC/GD patients and 21/312 controls without risk factors who developed metastases, univariate analysis showed that there was an increased risk of metastasis appearance for PC/GD cases (p < 0.001). Disease-free survival (DFS) was significantly (p < 0.0001, log-rank test) shorter in PC/GD patients than in controls. Significantly more elevated aggressiveness in 6/18 PC/GD patients with microcarcinoma than in controls was also ascertained with shorter DFS. Thus, in the present study, PC/GD had aggressive behavior during follow-up also when carcinoma characteristics were favorable and some cases were microcarcinomas. GD and non-GD patient comparison in the cases without risk factors at diagnosis showed an increased risk to develop metastases in GD during follow-up, suggesting that GD alone might be a tumor aggressiveness predictive factor in these cases.
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Affiliation(s)
- Andrea Marongiu
- Unit of Nuclear Medicine, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Susanna Nuvoli
- Unit of Nuclear Medicine, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Andrea De Vito
- Unit of Infectious Diseases, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Maria Rondini
- Unit of Nuclear Medicine, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | - Angela Spanu
- Unit of Nuclear Medicine, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
- Correspondence:
| | - Giuseppe Madeddu
- Unit of Nuclear Medicine, Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
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Abstract
PURPOSE OF REVIEW Thyroid cancers are endocrine neoplasms with diverse gene expression and behavior, for which constantly evolving anatomic and functional imaging/theranostic agents have an essential role for diagnosis, staging, and treatment. RECENT FINDINGS To achieve definitive diagnosis, neck ultrasound and associated risk stratification systems, notably Thyroid Imaging Reporting and Data System (TI-RADS), allow improved thyroid nodule characterization and management guidance. Radioactive iodine-131 (RAI) has long played a role in management of differentiated thyroid cancer (DTC), with recent literature emphasizing its effectiveness for intermediate-high risk cancers, exploring use of dosimetry for personalized medicine, and potential for retreatment with RAI following tumor redifferentiation. Iodine-124 positron emission tomography/computed tomography (PET/CT) has promising application for DTC staging and dosimetry. F18-fluorodeoxyglucose (FDG) PET/CT is used for staging of high risk DTC and identification of noniodine-avid disease recurrences, with metabolic uptake consistently portending poor prognosis. Poorly differentiated and anaplastic thyroid cancers are best assessed with anatomic imaging and F18-FDG PET/ CT, though recent studies show a potential theranostic role for Ga68/Lu177-prostate-specific membrane antigen. Medullary thyroid cancers are evaluated with ultrasound, CT, magnetic resonance imaging, and various positron-emitting radiotracers for PET imaging (F18-DOPA, F18-FDG, and recently Ga68-1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA)-octreotate (DOTATATE)); the latter may enable treatment with Lu177-DOTATATE. SUMMARY Multidisciplinary collaboration is essential to streamline appropriate management, given the wide array of available imaging and new therapies for metabolic and genetically complex cancers.
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Affiliation(s)
- Molly E. Roseland
- Division of Nuclear Medicine, Department of Radiology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Division of Body Imaging, Department of Radiology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Yuni K. Dewaraja
- Division of Nuclear Medicine, Department of Radiology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ka Kit Wong
- Division of Nuclear Medicine, Department of Radiology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Ahmadi S, Coleman A, de Morais NS, Landa I, Pappa T, Kang A, Kim MI, Marqusee E, Alexander EK. Clinical experience following implementation of routine SPECT-CT imaging following 131-iodine administration for thyroid cancer. Endocr Connect 2022; 11:e210371. [PMID: 35521806 PMCID: PMC9175585 DOI: 10.1530/ec-21-0371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/22/2022] [Indexed: 11/18/2022]
Abstract
Background Planar scintigraphy has long been indicated in patients receiving I-131 therapy for thyroid cancer to determine the anatomic location of metastases. We studied our experience upon implementing additional single-photon emission (SPECT)-CT scanning in these patients. Method We performed a retrospective study of consecutive adult patients with newly diagnosed thyroid cancer treated with I-131 between 2011 and 2017. Radiologic findings detected with planar scintigraphy alone vs those identified with SPECT-CT scanning were primary endpoints. Result In this study, 212 consecutive patients with thyroid cancer were analyzed in two separate cohorts (107 planar scintigraphy alone and 105 planar scintigraphy with SPECT-CT). The addition of SPECT-CT resulted in more findings, both thyroid-related and incidental. However, we identified only 3 of 21 cases in which SPECT-CT provided an unequivocal additional benefit by changing clinical management beyond planar scintigraphy alone. No difference in the detection of distant metastatic disease or outcome was identified between cohorts. Conclusion Synergistic SPECT-CT imaging in addition to planar nuclear scintigraphy adds limited clinical value to thyroid cancer patients harboring a low risk of distant metastases, while frequently identifying clinically insignificant findings. These data from a typical cohort of patients receiving standard thyroid cancer care provide insight into the routine use of SPECT-CT in such patients.
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Affiliation(s)
- Sara Ahmadi
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Alexandra Coleman
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Silva de Morais
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
- Endocrinology Service, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Iñigo Landa
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Theodora Pappa
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Alex Kang
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Matthew I Kim
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Ellen Marqusee
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
| | - Erik K Alexander
- Thyroid Section Brigham & Women’s Hospital & Harvard Medical School, Boston, Massachusetts, USA
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do Prado Padovani R, Chablani SV, Tuttle RM. Radioactive iodine therapy: multiple faces of the same polyhedron. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2022; 66:2359-3997000000461. [PMID: 35551676 PMCID: PMC9832850 DOI: 10.20945/2359-3997000000461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/22/2021] [Indexed: 11/23/2022]
Abstract
The incidence of differentiated thyroid carcinoma (DTC) has increased in recent decades with early stage, low risk papillary thyroid cancer (PTC) being detected and diagnosed. As a result, the psychological, financial, and clinical ramifications of overdiagnosis and excessively aggressive therapy are being increasingly recognized with many authorities calling for a re-evaluation of the traditional "one size fits all" management approaches. To address these critical issues, most thyroid cancer guidelines endorse a more risk adapted management strategy where the intensity of therapy and follow up is matched to the anticipated risk of recurrence and death from DTC for each patient. This "less is more" strategy provides for a minimalistic management approach for properly selected patients with low-risk DTC. This has re-kindled the long-standing debate regarding the routine use of radioactive iodine therapy (RIT) in DTC. Although recent guidelines have moved toward a more selective use of RIT, particular in patients with low-intermediate risk DTC, the proper selection of patients, the expected benefit, and the potential risks continue to be a source of ongoing controversy and debate. In this manuscript, we will review the wide range of clinical, imaging, medical team, and patient factors that must be considered when evaluating individual patients for RIT. Through a review of the current literature evaluating the potential benefits and risks of RIT, we will present a risk adapted approach to proper patient selection for RIT which emphasizes peri-operative risk stratification as the primary tool that clinicians should use to guide initial RIT management recommendations.
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Schmidt M, Bartenstein P, Bucerius J, Dietlein M, Drzezga A, Herrmann K, Lapa C, Lorenz K, Musholt TJ, Nagarajah J, Reiners C, Sahlmann CO, Kreissl MC. Individualized treatment of differentiated thyroid cancer: The value of surgery in combination with radioiodine imaging and therapy - A German position paper from Surgery and Nuclear Medicine. Nuklearmedizin 2022; 61:87-96. [PMID: 35299276 DOI: 10.1055/a-1783-8154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A consensus statement about indications for post-surgical radioiodine therapy (RIT) in differentiated thyroid cancer patients (DTC) was recently published by the European Thyroid Association (ETA) 1. This publication discusses indications for RIT on the basis of an individual risk assessment. Many of the conclusions of this consensus statement are well founded and accepted across the disciplines involved. However, especially from the perspective of nuclear medicine, as the discipline responsible for indicating and executing RIT, some of the recommendations may require further clarification with regard to their compatibility with established best practice and national standards of care. Assessment of the indications for RIT is strongly dependent on the weighing up of benefits and risks. On the basis of longstanding clinical experience in nuclear medicine, RIT represents a highly specific precision medicine procedure of proven efficacy with a favorable side-effect profile. This distinguishes RIT significantly from other adjuvant oncological therapies and has resulted in the establishment of this procedure as a usually well-tolerated, standard safety measure. With regard to its favorable risk/benefit ratio, this procedure should not be unnecessarily restricted, in the interest of offering reassurance to the patients. Both patients' interests and regional/national differences need to be taken into account. We would therefore like to comment on the recent consensus from the perspective of authors and to provide recommendations based on the respective published data.
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Affiliation(s)
- Matthias Schmidt
- Department of Nuclear Medicine, Faculty of Medicine, University Hospital of Cologne, Cologne, Germany.,Thyroid Committee, German Society of Nuclear Medicine (DGN e. V.).,Guideline Committee, German Society of Nuclear Medicine (DGN e. V.)
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.,Guideline Committee, German Society of Nuclear Medicine (DGN e. V.)
| | - Jan Bucerius
- Department of Nuclear Medicine, University Medical Center Göttingen, Göttingen, Germany
| | - Markus Dietlein
- Department of Nuclear Medicine, Faculty of Medicine, University Hospital of Cologne, Cologne, Germany.,Guideline Committee, German Society of Nuclear Medicine (DGN e. V.)
| | - Alexander Drzezga
- Department of Nuclear Medicine, Faculty of Medicine, University Hospital of Cologne, Cologne, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen and German Cancer Consortium (DKTK), Essen, Germany
| | - Constantin Lapa
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany.,Member of the Board, German Society of Nuclear Medicine (DGN e. V.)
| | - Kerstin Lorenz
- Department of Visceral, Vascular and Endocrine Surgery, Martin Luther University of Halle Wittenberg, Faculty of Medicine, Halle, Germany.,Member of the surgical working group for endocrinology (CAEK) of the German society for general and visceral surgery (DGAV)
| | - Thomas J Musholt
- Section of Endocrine Surgery, Department of General, Visceral and Transplantation Surgery, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany.,Member of the surgical working group for endocrinology (CAEK) of the German society for general and visceral surgery (DGAV)
| | - James Nagarajah
- Department of Medical Imaging, Nuclear Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherland.,Thyroid Committee, German Society of Nuclear Medicine (DGN e. V.).,Guideline Committee, German Society of Nuclear Medicine (DGN e. V.)
| | - Christoph Reiners
- Department of Nuclear Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Carsten O Sahlmann
- Department of Nuclear Medicine, University Medical Center Göttingen, Göttingen, Germany.,Thyroid Committee, German Society of Nuclear Medicine (DGN e. V.)
| | - Michael C Kreissl
- Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany.,Thyroid Committee, German Society of Nuclear Medicine (DGN e. V.)
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13
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Molecular Imaging and Theragnostics of Thyroid Cancers. Cancers (Basel) 2022; 14:cancers14051272. [PMID: 35267580 PMCID: PMC8909041 DOI: 10.3390/cancers14051272] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
Molecular imaging plays an important role in the evaluation and management of different thyroid cancer histotypes. The existing risk stratification models can be refined, by incorporation of tumor-specific molecular markers that have theranostic power, to optimize patient-specific (individualized) treatment decisions. Molecular imaging with varying radioisotopes of iodine (i.e., 131I, 123I, 124I) is an indispensable component of dynamic and theragnostic risk stratification of differentiated carcinoma (DTC) while [18F]F-fluorodeoxyglucose ([18F]FDG) positron emission tomography/computed tomography (PET/CT) helps in addressing disease aggressiveness, detects distant metastases, and risk-stratifies patients with radioiodine-refractory DTC, poorly differentiated and anaplastic thyroid cancers. For medullary thyroid cancer (MTC), a neuroendocrine tumor derived from thyroid C-cells, [18F]F-dihydroxyphenylalanine (6-[18F]FDOPA) PET/CT and/or [18F]FDG PET/CT can be used dependent on serum markers levels and kinetics. In addition to radioiodine therapy for DTC, some theragnostic approaches are promising for metastatic MTC as well. Moreover, new redifferentiation strategies are now available to restore uptake in radioiodine-refractory DTC while new theragnostic approaches showed promising preliminary results for advanced and aggressive forms of follicular-cell derived thyroid cancers (i.e., peptide receptor radiotherapy). In order to help clinicians put the role of molecular imaging into perspective, the appropriate role and emerging opportunities for molecular imaging and theragnostics in thyroid cancer are discussed in our present review.
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14
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Campennì A, Giovanella L. Nuclear medicine therapy of thyroid cancer post-thyroidectomy. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00202-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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15
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Sun YQ, Sun D, Zhang X, Zhang YQ, Lin YS. Radioiodine adjuvant therapy in differentiated thyroid cancer: An update and reconsideration. Front Endocrinol (Lausanne) 2022; 13:994288. [PMID: 36531486 PMCID: PMC9747769 DOI: 10.3389/fendo.2022.994288] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/07/2022] [Indexed: 12/02/2022] Open
Abstract
Radioiodine (131I) therapy (RAI) has been utilized for treating differentiated thyroid cancer (DTC) for decades, and its uses can be characterized as remnant ablation, adjuvant therapy (RAT) or treatment for known diseases. Compared with the definite 131I treatment targets for remnant ablation and known disease, 131I adjuvant therapy (RAT) aims to reduce the risk of recurrence by destroying potential subclinical disease. Since it is merely given as a risk with no imaging confirmation of persistence/recurrence/metastases, the evidence is uncertain. With limited knowledge and substance, the indication for RAT remains poorly defined for everyday clinical practice, and the benefits of RAT remain controversial. This ambiguity results in a puzzle for clinicians seeking clarity on whether patients should receive RAT, and whether patients are at risk of recurrence/death from undertreatment or adverse events from overtreatment. Herein, we clarified the RAT indications in terms of clinicopathological features, postoperative disease status and response to therapy evaluation, and retrospectively examined the clinical outcomes of RAT as reported in current studies and guidelines. Furthermore, given the evolution of nuclear medicine imaging techniques, it can be expected that the future of RAT may be advanced by nuclear medicine theranostics (i.e., 131I whole-body scan, PET/CT) by accurately revealing the biological behaviors, as well as the underlying molecular background.
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16
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Gamma camera imaging in differentiated thyroid cancer. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00195-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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17
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Piccardo A, Siri G, Ugolini M, Fiz F, Puntoni M, Bottoni G, Catrambone U, Pitoia F, Trimboli P. A Three-Domain Scoring System to Customize the Risk of Relapse of Differentiated Thyroid Carcinoma. Cancers (Basel) 2021; 13:cancers13174335. [PMID: 34503146 PMCID: PMC8430463 DOI: 10.3390/cancers13174335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022] Open
Abstract
PURPOSE the validation of a new scoring model considering the principal risk factors of differentiated thyroid cancer (DTC) relapse. METHODS we evaluated all DTC patients treated with thyroidectomy and radioactive iodine (RAI) therapy. Three domains were considered: the demographic domain (age and gender), the surgical domain (histology and the American Thyroid Association risk categories), and the RAI-related domain (pre-RAI thyroglobulin and post-therapeutic 131I whole-body scan). The progression-free survival was assessed. The patients' sample was randomly split into a training and validation set. The three-domain score was calculated as the weighted sum of the levels of each significant factor, then scaled to an integer range (0-100) and, finally, stratified into terciles: mild risk 0-33, moderate risk 34-66, and severe risk 67-100. RESULTS 907 DTC patients were included. The RAI-related domain was the most relevant factor in the score calculation. The tercile stratification identified significantly different survival curves: patients within the two upper terciles showed approximately 6 to 30 times more progressive risk than patients at mild risk. CONCLUSION we have validated a three-domain scoring system and the principal impact on this score is provided by the peri-RAI findings, whose prognostic role seems to be essential in risk identification.
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Affiliation(s)
- Arnoldo Piccardo
- Department of Nuclear Medicine, E.O. “Ospedali Galliera”, 16128 Genoa, Italy; (A.P.); (M.U.); (G.B.)
| | - Giacomo Siri
- Scientific Directorate, Galliera Hospital, 16128 Genoa, Italy;
| | - Martina Ugolini
- Department of Nuclear Medicine, E.O. “Ospedali Galliera”, 16128 Genoa, Italy; (A.P.); (M.U.); (G.B.)
| | - Francesco Fiz
- Department of Nuclear Medicine, E.O. “Ospedali Galliera”, 16128 Genoa, Italy; (A.P.); (M.U.); (G.B.)
- Correspondence: (F.F.); (P.T.); Tel.: +39-010-5634530 (F.F.)
| | - Matteo Puntoni
- Clinical & Epidemiological Research Unit, University Hospital of Parma, 43126 Parma, Italy;
| | - Gianluca Bottoni
- Department of Nuclear Medicine, E.O. “Ospedali Galliera”, 16128 Genoa, Italy; (A.P.); (M.U.); (G.B.)
| | - Ugo Catrambone
- Department of Surgery, E.O. “Ospedali Galliera”, 16128 Genoa, Italy;
| | - Fabián Pitoia
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires C1053, Argentina;
| | - Pierpaolo Trimboli
- Servizio di Endocrinologia e Diabetologia, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), 6900 Lugano, Switzerland
- Facultà di Scienze Biomediche, Università della Svizzera Italiana (USI), 6900 Lugano, Switzerland
- Correspondence: (F.F.); (P.T.); Tel.: +39-010-5634530 (F.F.)
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18
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The Diagnostic Usefulness of 131I-SPECT/CT at Both Radioiodine Ablation and during Long-Term Follow-Up in Patients Thyroidectomized for Differentiated Thyroid Carcinoma: Analysis of Tissue Risk Factors Ascertained at Surgery and Correlated with Metastasis Appearance. Diagnostics (Basel) 2021; 11:diagnostics11081504. [PMID: 34441438 PMCID: PMC8391408 DOI: 10.3390/diagnostics11081504] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 01/01/2023] Open
Abstract
131I Single-photon emission computerized tomography/computerized tomography (SPECT/CT) in the management of patients thyroidectomized for differentiated thyroid carcinoma (DTC) was further investigated. Retrospectively, 106 consecutive DTC patients were enrolled at the first radioiodine ablation, 24 at high risk (H), 61 at low risk (L) and 21 at very low risk (VL). 131I whole-body scan (WBS) and SPECT/CT were performed after therapeutic doses using a hybrid dual-head gamma camera. At ablation, SPECT/CT correctly classified 49 metastases in 17/106 patients with a significantly (p < 0.001) more elevated number than WBS which evidenced 32/49 foci in 13/17 cases. In this case, 86/106 patients could be monitored in the follow-up including 13/17 cases with metastases already at post-therapeutic scans. SPECT/CT after radioiodine diagnostic doses more correctly than WBS ascertained disease progression in 4/13 patients, stable disease in other 4/13 cases and disease improvement in the remaining 5/13 cases. Further 13/86 patients with only residues at post-therapeutic scans showed at SPECT/CT 16 neck lymph node (LN) metastases, three unclear and 13 occult at WBS. Significant involvement of some tissue risk factors with metastasis appearance was observed, such as minimal extrathyroid tumor extension and neck LN metastases. These risk factors should be carefully considered in DTC patient follow-up where 131I-SPECT/CT routinely use is suggested as a support tool of WBS.
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19
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Avram AM, Zukotynski K, Nadel HR, Giovanella LM. MANAGEMENT OF DIFFERENTIATED THYROID CANCER: THE STANDARD OF CARE. J Nucl Med 2021; 63:189-195. [PMID: 34413146 DOI: 10.2967/jnumed.121.262402] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
In the past decade the management of differentiated thyroid cancer (DTC) underwent a paradigm shift towards the use of risk-stratification with the goal of maximizing benefit and minimizing morbidity of radioiodine (131I) therapy. 131I therapy is guided by information derived from surgical histopathology, molecular markers, postoperative diagnostic radioiodine scintigraphy and thyroglobulin (Tg) levels. 131I is used for diagnostic imaging and therapy of DTC based on physiologic sodium-iodine symporter expression in normal and neoplastic thyroid tissue. We summarize the essential information at the core of multidisciplinary DTC management, which emphasizes individualization of 131I therapy according to the patient's risk for tumor recurrence.
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Affiliation(s)
| | | | | | - Luca M Giovanella
- Clinic for Nuclear Medicine and Thyroid Competence Center, Imaging Institute of Southern Switzerland, Switzerland
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20
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Gulec SA, Ahuja S, Avram AM, Bernet VJ, Bourguet P, Draganescu C, Elisei R, Giovanella L, Grant F, Greenspan B, Hegedüs L, Jonklaas J, Kloos RT, Luster M, Oyen WJG, Smit J, Tuttle RM. A Joint Statement from the American Thyroid Association, the European Association of Nuclear Medicine, the European Thyroid Association, the Society of Nuclear Medicine and Molecular Imaging on Current Diagnostic and Theranostic Approaches in the Management of Thyroid Cancer. Thyroid 2021; 31:1009-1019. [PMID: 33789450 DOI: 10.1089/thy.2020.0826] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: The American Thyroid Association (ATA), the European Association of Nuclear Medicine, the European Thyroid Association, and the Society of Nuclear Medicine and Molecular Imaging have established an intersocietal working group to address the current controversies and evolving concepts in thyroid cancer management and therapy. The working group annually identifies topics that may significantly impact clinical practice and publishes expert opinion articles reflecting intersocietal collaboration, consensus, and suggestions for further research to address these important management issues. Summary: In 2019, the intersocietal working group identified the following topics for review and interdisciplinary discussion: (i) perioperative risk stratification, (ii) the role of diagnostic radioactive iodine (RAI) imaging in initial staging, and (iii) indicators of response to RAI therapy. Conclusions: The intersocietal working group agreed that (i) initial patient management decisions should be guided by perioperative risk stratification that should include the eighth edition American Joint Committee on Cancer staging system to predict disease specific mortality, the modified 2009 ATA risk stratification system to estimate structural disease recurrence, with judicious incorporation of molecular theranostics to further refine management recommendations; (ii) diagnostic RAI scanning in ATA intermediate risk patients should be utilized selectively rather than being considered mandatory or not necessary for all patients in this category; and (iii) a consistent semiquantitative reporting system should be used for response evaluations after RAI therapy until a reproducible and clinically practical quantitative system is validated.
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Affiliation(s)
- Seza A Gulec
- Aventura Hospital and Medical Center, Aventura, Florida, USA
- Miami Cancer Research Center, North Miami, Florida, USA
- Florida International University Herbert Wertheim College of Medicine, Miami, Florida, USA
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia, USA
| | - Sukhjeet Ahuja
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia, USA
| | - Anca M Avram
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia, USA
- University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Victor J Bernet
- Mayo Clinic College of Medicine, Jacksonville, Florida, USA
- American Thyroid Association, Falls Church, Virginia, USA
| | - Patrick Bourguet
- University Hospital of Martinique, University of Antilles, Pointe-à-Pitre, France
| | - Ciprian Draganescu
- University Hospital of Martinique, University of Antilles, Pointe-à-Pitre, France
| | - Rosella Elisei
- Department of Endocrinology, University of Pisa, Pisa, Italy
- The European Thyroid Association, Altdorf, Germany
| | - Luca Giovanella
- Clinic of Nuclear Medicine and Thyroid Centre, Imaging Institute of Southern Switzerland, Bellinzona, Switzerland
- Department of Nuclear Medicine, University of Zürich, Zürich, Switzerland
- The European Association of Nuclear Medicine, Vienna, Austria
| | - Frederick Grant
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia, USA
- Joint Program in Nuclear Medicine, Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bennett Greenspan
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia, USA
| | - Laszlo Hegedüs
- The European Thyroid Association, Altdorf, Germany
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Jacqueline Jonklaas
- American Thyroid Association, Falls Church, Virginia, USA
- Division of Endocrinology, Georgetown University, Washington, District of Columbia, USA
| | | | - Markus Luster
- The European Association of Nuclear Medicine, Vienna, Austria
- Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Wim J G Oyen
- The European Association of Nuclear Medicine, Vienna, Austria
- Department of Radiology and Nuclear Medicine, Rijnstate Hospital, Arnhem, The Netherlands
- Department of Biomedical Sciences and Humanitas Clinical and Research Center, Humanitas University, Milan, Italy
- Department of Nuclear Medicine, Humanitas Clinical and Research Center, Humanitas University, Milan, Italy
- Department of Radiology and Nuclear Medicine and Radboud UMC, Nijmegen, The Netherlands
| | - Johannes Smit
- The European Thyroid Association, Altdorf, Germany
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands
| | - R Michael Tuttle
- American Thyroid Association, Falls Church, Virginia, USA
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
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21
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Bartel Chair TB, Magerefteh S, Avram AM, Balon HR, De Blanche LE, Dadparvar S, Johnston M, Moreau S. SNMMI Procedure Standard for Scintigraphy for Differentiated Thyroid Cancer. J Nucl Med Technol 2021; 48:202-209. [PMID: 32883775 DOI: 10.2967/jnmt.120.243626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | | | - Anca M Avram
- University of Michigan Medical Center, Ann Arbor, Michigan
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22
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Fu H, Fu J, Huang J, Su X, Chen H. 68Ga-FAPI PET/CT in Thyroid Cancer With Thyroglobulin Elevation and Negative Iodine Scintigraphy. Clin Nucl Med 2021; 46:427-430. [PMID: 33661204 DOI: 10.1097/rlu.0000000000003569] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT Differentiated thyroid cancer with thyroglobulin elevation and negative iodine scintigraphy (TENIS) syndrome is a diagnostic and therapy dilemma. In this study, we present a case of TENIS with detectable metastases in the larynx and lung on the CT scan. 68Ga-fibroblast activation protein inhibitor (FAPI) PET/CT was performed for further detection of tumor recurrence and metastases, which showed intense 68Ga-FAPI activity in the metastatic lesions. To the best of our knowledge, this is the first case of TENIS presenting with FAPI-avid metastatic lesions, demonstrating its usefulness for localizing recurrent or metastatic lesions in patients with TENIS.
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Affiliation(s)
- Hao Fu
- From the Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen
| | - Jie Fu
- Department of Human Anatomy & Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang Key Laboratory of Molecular Neurology, Xinxiang, Henan
| | - Jingxiong Huang
- From the Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen
| | - Xinyi Su
- Harbin Medical University, Harbin, People's Republic of China
| | - Haojun Chen
- From the Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen
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23
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Added Value of Postoperative Radioiodine Scan for Staging and Risk Stratification in Papillary Thyroid Microcarcinoma. J ASEAN Fed Endocr Soc 2021; 36:64-68. [PMID: 34177090 PMCID: PMC8214359 DOI: 10.15605/jafes.036.01.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/30/2021] [Indexed: 11/17/2022] Open
Abstract
Objective The complete staging and risk stratification of Papillary thyroid microcarcinoma (PTMC) is usually not done due to its theoretically low recurrence rates. This study aimed to determine the value of postoperative radioiodine diagnostic scan and SPECT/CT for the accurate staging and risk stratification in PTMC patients. Methodology This study was a retrospective review of PTMC patients from January 2014 to May 2017 who underwent I-131 scans. All PTMC patients were initially staged by the 8th edition AJCC/TNM staging system and risk-stratified, based on clinical information, histopathology and stimulated thyroglobulin (sTg). After I-131 scan, staging and risk stratification were re-assessed. The proportion of patients who ended up with a higher stage and risk stratification were reported. Results and Conclusion Fifty-two patients were included. The overall upgrading of cancer stage was 7.7 %. The overall higher risk stratification was 19.2% with radioiodine-avid lymph node, lung, and bone metastases. Neck and paratracheal node metastases were found in 37.3% of the initial low-risk patients with sTg less than 5 ng/mL. Lung metastasis was found in the initial intermediate-risk patient. The I-131 scan helps to localize metastatic lesions and results in a higher stage in 50% of the initial high-risk patients. This study provides some evidence showing the value of postoperative radioiodine WBS for accurate staging and risk stratification in PTMC patients. Larger studies with analytical design should be further performed to prove its significant utility.
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24
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Radioiodine in Differentiated Thyroid Carcinoma: Do We Need Diagnostic Pre-Ablation Iodine-123 Scintigraphy to Optimize Treatment? Diagnostics (Basel) 2021; 11:diagnostics11030553. [PMID: 33808843 PMCID: PMC8003652 DOI: 10.3390/diagnostics11030553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 11/16/2022] Open
Abstract
Changing insights regarding radioiodine (I-131) administration in differentiated thyroid carcinoma (DTC) stir up discussions on the utility of pre-ablation diagnostic scintigraphy (DxWBS). Our retrospective study qualitatively and semi-quantitatively assessed posttherapy I-131 whole-body scintigraphy (TxWBS) data for thyroid remnant size and metastasis. Findings were associated with initial treatment success after nine months, as well as clinical, histopathological, and surgical parameters. Possible management changes were addressed. A thyroid remnant was reported in 89 of 97 (92%) patients, suspicion of lymph node metastasis in 26 (27%) and distant metastasis in 6 (6%). Surgery with oncological intent and surgery by two dedicated thyroid surgeons were independently associated with a smaller remnant. Surgery at a community hospital, aggressive tumor histopathology, histopathological lymph node metastasis (pN1) and suspicion of new lymph node metastasis on TxWBS were independently associated with an unsuccessful treatment. Thyroid remnant size was unrelated to treatment success. All 13 pN1 patients with suspected in situ lymph node metastases on TxWBS had an unsuccessful treatment, opposite 19/31 (61%) pN1 patients without (p = 0.009). Pre-ablative knowledge of these TxWBS findings had likely influenced management in 48 (50%) patients. Additional pre-ablative diagnostics could optimize patient-tailored I-131 administration. DxWBS should be considered, especially in patients with pN1 stage or suspected in situ lymph node metastasis. Dependent on local surgical expertise, DxWBS is not recommended to evaluate thyroid remnant size.
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25
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van der Boom T, Zandee WT, Dekkers CCJ, van der Horst-Schrivers ANA, Jansen L, Kruijff S, Brouwers AH, Links TP. The Value of Pre-Ablative I-131 Scan for Clinical Management in Patients With Differentiated Thyroid Carcinoma. Front Endocrinol (Lausanne) 2021; 12:655676. [PMID: 34122334 PMCID: PMC8194815 DOI: 10.3389/fendo.2021.655676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/28/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND A diagnostic I-131 (Dx) scan is used to detect a thyroid remnant or metastases before treatment of differentiated thyroid cancer (DTC) with I-131. The aim of this study is to specify in which patients with DTC a Dx scan could have an additional value, by studying the effect of the Dx scan on clinical management. METHODS Patients with DTC, treated with I-131 after thyroidectomy were included in this retrospective cohort study. Twenty-four hours after administration of 37 MBq I-131 a whole body Dx scan and an uptake measurement at the original thyroid bed were performed. Outcomes of the Dx scan and the subsequent changes in clinical management, defined as additional surgery or adjustment of I-131 activity, were reported. Risk factors for a change in clinical management were identified with a binary logistic regression. RESULTS In 11 (4.2%) patients clinical management was changed, including additional surgery (n=5), lowering I-131 activity (n=5) or both (n=1). Risk factors for a change in clinical management were previous neck surgery (OR 5.9, 95% CI: 1.4-24.5), surgery in a non-tertiary center (OR 13.4, 95% CI: 2.8 - 63.8), TSH <53.4 mU/L (OR 19.64, 95% CI: 4.94-78.13), thyroglobulin ≥50.0 ng/L (OR 7.4, 95% CI: 1.6-34.9) and free T4 ≥4.75 pmol/L (OR 156.8, 95% CI: 128.4-864.2). CONCLUSION The Dx scan can potentially change clinical management before treatment with I-131, but the yield is low. A Dx-scan should only be considered for patients with a high pre-scan risk of a change in management, based on patient history and prior center-based surgical outcomes.
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Affiliation(s)
- Trynke van der Boom
- Department of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Wouter T. Zandee
- Department of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Claire C. J. Dekkers
- Department of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Anouk N. A. van der Horst-Schrivers
- Department of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Emergency Medicine, Maastricht University Medical Center and Maastricht University, Maastricht, Netherlands
| | - Liesbeth Jansen
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Schelto Kruijff
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Adrienne H. Brouwers
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Thera P. Links
- Department of Internal Medicine, Division of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- *Correspondence: Thera P. Links,
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Fu H, Sa R, Cheng L, Jin Y, Qiu X, Liu M, Chen L. Updated Review of Nuclear Molecular Imaging of Thyroid Cancers. Endocr Pract 2020; 27:494-502. [PMID: 33934754 DOI: 10.1016/j.eprac.2020.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVES We initiate this comprehensive review to update the advances in this field by objectively elucidating the efficacies of promising radiopharmaceuticals. METHODS We performed a comprehensive PUBMED search using the combined terms of "thyroid cancer" and "radiopharmaceuticals" or "nuclear medicine", yielding 3273 and 11026 articles prior to December 31, 2020, respectively. RESULTS Based on the mechanism of molecular metabolism, the evaluation of differentiated thyroid cancer and dedifferentiated thyroid cancer is largely centered around radioiodine and fluorine 18 (18F)-fludeoxyglucose, respectively. Further, 18F-L-dihydroxyphenylalanine and gallium 68 DOTATATE are the preferred tracers for medullary thyroid cancer. In dedifferentiated medullary thyroid cancer and anaplastic thyroid cancer, 18F-fludeoxyglucose is superior. CONCLUSIONS The future lies in advances in molecular biology, novel radiopharmaceuticals and imaging devices, paving ways to the development of personalized medication for thyroid cancer patients.
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Affiliation(s)
- Hao Fu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China; Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, People's Republic of China
| | - Ri Sa
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China; Department of Nuclear Medicine, The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Lin Cheng
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yuchen Jin
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Xian Qiu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Min Liu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China; Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Libo Chen
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China.
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27
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Donohoe KJ, Aloff J, Avram AM, Bennet KG, Giovanella L, Greenspan B, Gulec S, Hassan A, Kloos RT, Solórzano CC, Stack BC, Tulchinsky M, Tuttle RM, Van Nostrand D, Wexler JA. Appropriate Use Criteria for Nuclear Medicine in the Evaluation and Treatment of Differentiated Thyroid Cancer. J Nucl Med 2020; 61:375-396. [PMID: 32123131 DOI: 10.2967/jnumed.119.240945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 12/22/2022] Open
Affiliation(s)
- Kevin J Donohoe
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | | | - Anca M Avram
- American College of Nuclear Medicine, Reston, Virginia
| | - K G Bennet
- American College of Nuclear Medicine, Reston, Virginia
| | | | | | - Seza Gulec
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | - Aamna Hassan
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | | | | | | | - Mark Tulchinsky
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
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28
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Young RJ, Demétrio De Souza França P, Pirovano G, Piotrowski AF, Nicklin PJ, Riedl CC, Schwartz J, Bale TA, Donabedian PL, Kossatz S, Burnazi EM, Roberts S, Lyashchenko SK, Miller AM, Moss NS, Fiasconaro M, Zhang Z, Mauguen A, Reiner T, Dunphy MP. Preclinical and first-in-human-brain-cancer applications of [ 18F]poly (ADP-ribose) polymerase inhibitor PET/MR. Neurooncol Adv 2020; 2:vdaa119. [PMID: 33392502 PMCID: PMC7758909 DOI: 10.1093/noajnl/vdaa119] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background We report preclinical and first-in-human-brain-cancer data using a targeted poly (ADP-ribose) polymerase 1 (PARP1) binding PET tracer, [18F]PARPi, as a diagnostic tool to differentiate between brain cancers and treatment-related changes. Methods We applied a glioma model in p53-deficient nestin/tv-a mice, which were injected with [18F]PARPi and then sacrificed 1 h post-injection for brain examination. We also prospectively enrolled patients with brain cancers to undergo dynamic [18F]PARPi acquisition on a dedicated positron emission tomography/magnetic resonance (PET/MR) scanner. Lesion diagnosis was established by pathology when available or by Response Assessment in Neuro-Oncology (RANO) or RANO-BM response criteria. Resected tissue also underwent PARPi-FL staining and PARP1 immunohistochemistry. Results In a preclinical mouse model, we illustrated that [18F]PARPi crossed the blood–brain barrier and specifically bound to PARP1 overexpressed in cancer cell nuclei. In humans, we demonstrated high [18F]PARPi uptake on PET/MR in active brain cancers and low uptake in treatment-related changes independent of blood–brain barrier disruption. Immunohistochemistry results confirmed higher PARP1 expression in cancerous than in noncancerous tissue. Specificity was also corroborated by blocking fluorescent tracer uptake with an excess unlabeled PARP inhibitor in patient cancer biospecimen. Conclusions Although larger studies are necessary to confirm and further explore this tracer, we describe the promising performance of [18F]PARPi as a diagnostic tool to evaluate patients with brain cancers and possible treatment-related changes.
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Affiliation(s)
- Robert J Young
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,The Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Paula Demétrio De Souza França
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Otorhinolaryngology and Head and Neck Surgery, Federal University of São Paulo, São Paulo, Brazil
| | - Giacomo Pirovano
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Anna F Piotrowski
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,The Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Philip J Nicklin
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Christopher C Riedl
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jazmin Schwartz
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Radiology, Weill Cornell Medical College, New York, New York, USA
| | - Tejus A Bale
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,The Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Patrick L Donabedian
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Susanne Kossatz
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Eva M Burnazi
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Sheryl Roberts
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Serge K Lyashchenko
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Alexandra M Miller
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,The Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Nelson S Moss
- Department of Neurosurgery and Brain Metastasis Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Megan Fiasconaro
- Department of Biostatistics and Epidemiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Zhigang Zhang
- Department of Biostatistics and Epidemiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Audrey Mauguen
- Department of Biostatistics and Epidemiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Thomas Reiner
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA.,Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Mark P Dunphy
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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29
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Juweid ME, Tulchinsky M, Mismar A, Momani M, Zayed AA, Al Hawari H, Albsoul N, Mottaghy FM. Contemporary considerations in adjuvant radioiodine treatment of adults with differentiated thyroid cancer. Int J Cancer 2020; 147:2345-2354. [PMID: 32319676 DOI: 10.1002/ijc.33020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/14/2020] [Accepted: 04/09/2020] [Indexed: 12/19/2022]
Abstract
Differentiated thyroid cancer (DTC) is the most common endocrine malignancy with a growing incidence worldwide. The initial conventional management is surgery, followed by consideration of 131 I treatment that includes three options. These are termed remnant ablation (targeting benign thyroid remnant), adjuvant (targeting presumed microscopic DTC) and known disease (targeting macroscopic DTC) treatments. Some experts mostly rely on clinicopathologic assessment for recurrence risk to select patients for the 131 I treatment. Others, in addition, apply radioiodine imaging to guide their treatment planning, termed theranostics (aka theragnostics or radiotheragnostics). In patients with low-risk DTC, remnant ablation rather than adjuvant treatment is generally recommended and, in this setting, the ATA recommends a low 131 I activity. 131 I adjuvant treatment is universally recommended in patients with high-risk DTC (a primary tumor of any size with gross extrathyroidal extension) and is generally recommended in intermediate-risk DTC (primary tumor >4 cm in diameter, locoregional metastases, microscopic extrathyroidal extension, aggressive histology or vascular invasion). The optimal amount of 131 I activity for adjuvant treatment is controversial, but experts reached a consensus that the 131 I activity should be greater than that for remnant ablation. The main obstacles to establishing timely evidence through randomized clinical trials for 131 I therapy include years-to-decades delay in recurrence and low disease-specific mortality. This mini-review is intended to update oncologists on the most recent clinical, pathologic, laboratory and imaging variables, as well as on the current 131 I therapy-related definitions and management paradigms, which should optimally equip them for individualized patient guidance and treatment.
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Affiliation(s)
- Malik E Juweid
- Division of Nuclear Medicine/Department of Radiology and Nuclear Medicine, University of Jordan, Amman, Jordan
| | - Mark Tulchinsky
- Department of Radiology, Penn State University Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Ayman Mismar
- Department of General Surgery, University of Jordan, Amman, Jordan
| | - Munther Momani
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Ayman A Zayed
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Hussam Al Hawari
- Division of Endocrinology, Department of Medicine, University of Jordan, Amman, Jordan
| | - Nader Albsoul
- Department of General Surgery, University of Jordan, Amman, Jordan
| | - Felix M Mottaghy
- Department of Nuclear Medicine, University of Aachen, Aachen, Germany
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30
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Neck lymph node metastasis detection in patients with differentiated thyroid carcinoma (DTC) in long-term follow-up: a 131I-SPECT/CT study. BMC Cancer 2020; 20:239. [PMID: 32197595 PMCID: PMC7083046 DOI: 10.1186/s12885-020-06744-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/12/2020] [Indexed: 11/30/2022] Open
Abstract
Background The identification of neck lymph node (LN) metastases represents a very important issue in the management of patients with differentiated thyroid carcinoma (DTC). To this purpose, in the present study, we used 131I-SPECT/CT as a diagnostic imaging procedure. Methods A consecutive series of 224 DTC patients with ascertained neck radioiodine-avid foci at 131I-SPECT/CT during long-term follow-up was evaluated. All patients had already undergone total thyroidectomy and radioiodine therapy and had been classified as follows: 62 at high risk (H), 64 at low risk (L) and 98 at very low risk (VL). 131I-Whole body scan (WBS) followed by SPECT/CT was performed in all cases. Results In the 224 patients, 449 neck iodine avid foci were ascertained at SPECT/CT, while 322 were evidenced at WBS in 165/224 patients. WBS classified as residues 263/322 foci and as unclear 59/322 foci; among the former foci SPECT/CT correctly characterized 8 LN metastases and 3 physiologic uptakes and among the latter, it pinpointed 26 LN metastases, 18 residues, and 15 physiologic uptakes. SPECT/CT also classified 127 foci occult at WBS as 59 LN metastases and 68 residues. Globally, SPECT/CT identified 93 LN metastases in 59 patients (26 H, 20 L, 13 VL), while WBS evidenced 34 in 25 cases. All 13 VL patients, T1aN0M0, 5 of whom with LN near sub-mandibular glands, had thyroglobulin undetectable or < 2.5 ng/ml. Globally, SPECT/CT obtained an incremental value than WBS in 45.5% of patients, a more correct patient classification changing therapeutic approach in 30.3% of cases and identified WBS false-positive findings in 8% of cases. Conclusions 131I-SPECT/CT proved to correctly detect and characterize neck LN metastases in DTC patients in long-term follow-up, improving the performance of planar WBS. SPECT/CT routine use is thus suggested; its role is particularly relevant in patients with WBS inconclusive, VL, T1aN0M0 and with undetectable or very low thyroglobulin levels.
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31
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van Velsen EFS, Stegenga MT, van Kemenade FJ, Kam BLR, van Ginhoven TM, Visser WE, Peeters RP. Evaluation of the 2015 ATA Guidelines in Patients With Distant Metastatic Differentiated Thyroid Cancer. J Clin Endocrinol Metab 2020; 105:dgz137. [PMID: 31665318 PMCID: PMC7112972 DOI: 10.1210/clinem/dgz137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/19/2019] [Indexed: 11/19/2022]
Abstract
CONTEXT Current American Thyroid Association (ATA) Management Guidelines for the treatment of differentiated thyroid cancer (DTC) stratify patients to decide on additional radioiodine (RAI) therapy after surgery, and to predict recurring/persisting disease. However, studies evaluating the detection of distant metastases and how these guidelines perform in patients with distant metastases are scarce. OBJECTIVE To evaluate the 2015 ATA Guidelines in DTC patients with respect to 1) the detection of distant metastases, and 2) the accuracy of its Risk Stratification System in patients with distant metastases. PATIENTS AND MAIN OUTCOME MEASURES We retrospectively included 83 DTC patients who were diagnosed with distant metastases around the time of initial therapy, and a control population of 472 patients (312 low-risk, 160 intermediate-risk) who did not have a routine indication for RAI therapy. We used the control group to assess the percentage of distant metastases that would have been missed if no RAI therapy was given. RESULTS Two hundred forty-six patients had no routine indication for RAI therapy of which 4 (1.6%) had distant metastases. Furthermore, among the 83 patients with distant metastases, 14 patients (17%) had excellent response, while 55 (67%) had structural disease after a median follow-up of 62 months. None of the 14 patients that achieved an excellent response had a recurrence. CONCLUSIONS In patients without a routine indication for RAI therapy according to the 2015 ATA Guidelines, distant metastases would initially have been missed in 1.6% of the patients. Furthermore, in patients with distant metastases upon diagnosis, the 2015 ATA Guidelines are an excellent predictor of both persistent disease and recurrence.
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MESH Headings
- Adenocarcinoma, Follicular/diagnosis
- Adenocarcinoma, Follicular/epidemiology
- Adenocarcinoma, Follicular/prevention & control
- Adenocarcinoma, Follicular/secondary
- Adult
- Aged
- Aged, 80 and over
- Endocrinology/methods
- Endocrinology/standards
- Female
- Follow-Up Studies
- Humans
- Iodine Radioisotopes/therapeutic use
- Male
- Middle Aged
- Organizations, Nonprofit/standards
- Patient Selection
- Practice Guidelines as Topic
- Radiotherapy, Adjuvant/methods
- Radiotherapy, Adjuvant/standards
- Retrospective Studies
- Risk Assessment/methods
- Risk Assessment/standards
- Risk Factors
- Societies, Medical/standards
- Thyroid Cancer, Papillary/diagnosis
- Thyroid Cancer, Papillary/epidemiology
- Thyroid Cancer, Papillary/prevention & control
- Thyroid Cancer, Papillary/secondary
- Thyroid Gland/pathology
- Thyroid Gland/surgery
- Thyroid Neoplasms/diagnosis
- Thyroid Neoplasms/epidemiology
- Thyroid Neoplasms/pathology
- Thyroid Neoplasms/therapy
- Thyroidectomy/standards
- United States/epidemiology
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Affiliation(s)
- Evert F S van Velsen
- Academic Center for Thyroid Diseases, Department of Internal Medicine, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - Merel T Stegenga
- Academic Center for Thyroid Diseases, Department of Internal Medicine, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - Folkert J van Kemenade
- Academic Center for Thyroid Diseases, Department of Pathology, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - Boen L R Kam
- Academic Center for Thyroid Diseases, Department of Nuclear Medicine, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - Tessa M van Ginhoven
- Academic Center for Thyroid Diseases, Department of Surgery, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - W Edward Visser
- Academic Center for Thyroid Diseases, Department of Internal Medicine, Erasmus Medical Center, CE Rotterdam, The Netherlands
| | - Robin P Peeters
- Academic Center for Thyroid Diseases, Department of Internal Medicine, Erasmus Medical Center, CE Rotterdam, The Netherlands
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32
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Slonimsky E, Tulchinsky M. Radiotheragnostics Paradigm for Radioactive Iodine (Iodide) Management of Differentiated Thyroid Cancer. Curr Pharm Des 2020; 26:3812-3827. [PMID: 32503402 PMCID: PMC7527547 DOI: 10.2174/1381612826666200605121054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/09/2020] [Indexed: 12/29/2022]
Abstract
This review of radioactive iodide treatment (RAIT) extends from historical origins to its modern utilization in differentiated thyroid cancer (DTC). The principles embedded in the radiotheragnostics (RTGs) paradigm are detailed. The diverse approaches in current practice are addressed, and this broad variability represents a major weakness that erodes our specialty's trust-based relationship with patients and referring physicians. The currently developing inter-specialty collaboration should be hailed as a positive change. It promises to clarify the target-based terminology for RAIT. It defines RAIT of post total thyroidectomy (PTT), presumably benign thyroid as 'remnant ablation' (RA). 'Adjuvant treatment' (AT) referrers to RAIT of suspected microscopic DTC that is inherently occult on diagnostic imaging. RAIT directed at DTC lesion(s) overtly seen on diagnostic imaging is termed 'treatment of known disease' (TKD). It was recently recognized that a 'recurrent' DTC is actually occult residual DTC in the majority of cases. Thyroglobulin with remnant uptake concord (TRUC) method (aka Tulchinsky method) was developed to validate that a benign remnant in the post-thyroidectomy neck bed, as quantified by the RAI uptake, is concordant with a measured thyroglobulin (Tg) level at the time of the initial post-thyroidectomy evaluation. It allows recognition of occult residual DTC contribution to post-thyroidectomy Tg. Case examples demonstrate the application of the TRUC method for a logical selection of a specific RAIT category, using imaging-guided identification and management of RAI-avid versus RAI-nonavid residual DTC, i.e. the radiotheragnostics paradigm.
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Affiliation(s)
- Einat Slonimsky
- Department of Radiology, Section of Nuclear Medicine, Penn State Health, the Milton S. Hershey Medical Center, Penn State
University Hospital, Hershey, Pennsylvania17033, USA
| | - Mark Tulchinsky
- Department of Radiology, Section of Nuclear Medicine, Penn State Health, the Milton S. Hershey Medical Center, Penn State
University Hospital, Hershey, Pennsylvania17033, USA
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33
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Israel O, Pellet O, Biassoni L, De Palma D, Estrada-Lobato E, Gnanasegaran G, Kuwert T, la Fougère C, Mariani G, Massalha S, Paez D, Giammarile F. Two decades of SPECT/CT - the coming of age of a technology: An updated review of literature evidence. Eur J Nucl Med Mol Imaging 2019; 46:1990-2012. [PMID: 31273437 PMCID: PMC6667427 DOI: 10.1007/s00259-019-04404-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/14/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE Single-photon emission computed tomography (SPECT) combined with computed tomography (CT) was introduced as a hybrid SPECT/CT imaging modality two decades ago. The main advantage of SPECT/CT is the increased specificity achieved through a more precise localization and characterization of functional findings. The improved diagnostic accuracy is also associated with greater diagnostic confidence and better inter-specialty communication. METHODS This review presents a critical assessment of the relevant literature published so far on the role of SPECT/CT in a variety of clinical conditions. It also includes an update on the established evidence demonstrating both the advantages and limitations of this modality. CONCLUSIONS For the majority of applications, SPECT/CT should be a routine imaging technique, fully integrated into the clinical decision-making process, including oncology, endocrinology, orthopaedics, paediatrics, and cardiology. Large-scale prospective studies are lacking, however, on the use of SPECT/CT in certain clinical domains such as neurology and lung disorders. The review also presents data on the complementary role of SPECT/CT with other imaging modalities and a comparative analysis, where available.
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Affiliation(s)
- Ora Israel
- Rappaport School of Medicine, Israel Institute of Technology, Haifa, Israel.
| | - O Pellet
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - L Biassoni
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - D De Palma
- Nuclear Medicine Unit, Circolo Hospital, ASST-Settelaghi, Varese, Italy
| | - E Estrada-Lobato
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - G Gnanasegaran
- Department of Nuclear Medicine, Royal Free NHS Foundation Trust, London, UK
| | - T Kuwert
- Clinic of Nuclear Medicine, University Hospital, Erlangen, Germany
| | - C la Fougère
- Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital, Tubingen, Germany
| | - G Mariani
- Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
| | - S Massalha
- Department of Medicine, University of Ottawa Heart Institute, Ottawa, Canada
- Department of Nuclear Medicine, Rambam Healthcare Campus, Haifa, Israel
| | - D Paez
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - F Giammarile
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
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34
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Tuttle RM, Ahuja S, Avram AM, Bernet VJ, Bourguet P, Daniels GH, Dillehay G, Draganescu C, Flux G, Führer D, Giovanella L, Greenspan B, Luster M, Muylle K, Smit JWA, Van Nostrand D, Verburg FA, Hegedüs L. Controversies, Consensus, and Collaboration in the Use of 131I Therapy in Differentiated Thyroid Cancer: A Joint Statement from the American Thyroid Association, the European Association of Nuclear Medicine, the Society of Nuclear Medicine and Molecular Imaging, and the European Thyroid Association. Thyroid 2019; 29:461-470. [PMID: 30900516 DOI: 10.1089/thy.2018.0597] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Publication of the 2015 American Thyroid Association (ATA) management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer was met with disagreement by the extended nuclear medicine community with regard to some of the recommendations related to the diagnostic and therapeutic use of radioiodine (131I). Because of these concerns, the European Association of Nuclear Medicine and the Society of Nuclear Medicine and Molecular Imaging declined to endorse the ATA guidelines. As a result of these differences in opinion, patients and clinicians risk receiving conflicting advice with regard to several key thyroid cancer management issues. SUMMARY To address some of the differences in opinion and controversies associated with the therapeutic uses of 131I in differentiated thyroid cancer constructively, the ATA, the European Association of Nuclear Medicine, the Society of Nuclear Medicine and Molecular Imaging, and the European Thyroid Association each sent senior leadership and subject-matter experts to a two-day interactive meeting. The goals of this first meeting were to (i) formalize the dialogue and activities between the four societies; (ii) discuss indications for 131I adjuvant treatment; (iii) define the optimal prescribed activity of 131I for adjuvant treatment; and (iv) clarify the definition and classification of 131I-refractory thyroid cancer. CONCLUSION By fostering an open, productive, and evidence-based discussion, the Martinique meeting restored trust, confidence, and a sense of collegiality between individuals and organizations that are committed to optimal thyroid disease management. The result of this first meeting is a set of nine principles (The Martinique Principles) that (i) describe a commitment to proactive, purposeful, and inclusive interdisciplinary cooperation; (ii) define the goals of 131I therapy as remnant ablation, adjuvant treatment, or treatment of known disease; (iii) describe the importance of evaluating postoperative disease status and multiple other factors beyond clinicopathologic staging in 131I therapy decision making; (iv) recognize that the optimal administered activity of 131I adjuvant treatment cannot be definitely determined from the published literature; and (v) acknowledge that current definitions of 131I-refractory disease are suboptimal and do not represent definitive criteria to mandate whether 131I therapy should be recommended.
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Affiliation(s)
- R Michael Tuttle
- 1 Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Sukhjeet Ahuja
- 2 Evidence and Quality, Society of Nuclear Medicine and Molecular Imaing, Reston, Virginia
| | - Anca M Avram
- 3 Division of Nuclear Medicine, Department of Radiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Victor J Bernet
- 4 Division of Endocrinology, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Patrick Bourguet
- 5 Department of Nuclear Medicine, University Hospital of Martinique, Fort de France, Martinique
- 6 University of Antilles, Pointe-à-Pitre, Guadeloupe
| | - Gilbert H Daniels
- 7 Thyroid Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Gary Dillehay
- 8 Department of Nuclear Medicine, Northwestern Memorial Hospital, Chicago, Illinois
| | - Ciprian Draganescu
- 5 Department of Nuclear Medicine, University Hospital of Martinique, Fort de France, Martinique
| | - Glenn Flux
- 9 Department of Physics, Royal Marsden Hospital and Institute of Cancer Research, Sutton, United Kingdom
| | - Dagmar Führer
- 10 Department of Endocrinology and Metabolism, University Hospital Essen, Essen, Germany
| | - Luca Giovanella
- 11 Clinic of Nuclear Medicine and Thyroid Center, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- 12 Clinic for Nuclear Medicine, University of Zürich, Zürich, Switzerland
| | | | - Markus Luster
- 14 Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Kristoff Muylle
- 15 Department of Nuclear Medicine, University Hospital Brussels (UZ Brussel, VUB), Brussels, Belgium
- 16 European Association of Nuclear Medicine, Vienna, Austria
| | - Johannes W A Smit
- 17 Department of Endocrinology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Douglas Van Nostrand
- 18 Georgetown University School of Medicine, Washington Hospital Center, Washington, DC
| | - Frederik A Verburg
- 14 Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Laszlo Hegedüs
- 19 Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
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Zhang TT, Li CF, Wen SS, Huang DZ, Sun GH, Zhu YX, Wang Y, Ji QH, Qu N, Shi RL. Effects of tumor size on prognosis in differentiated thyroid carcinoma smaller than 2 cm. Oncol Lett 2019; 17:4229-4236. [PMID: 30944617 PMCID: PMC6444283 DOI: 10.3892/ol.2019.10088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 10/09/2018] [Indexed: 01/11/2023] Open
Abstract
Benefits of subdividing small-differentiated thyroid carcinoma (sDTC) by tumor size are controversial. We conducted a meta-analysis to investigate whether tumor size is associated with prognosis of sDTC. PubMed and Web of Science databases were searched from their inception to September 2018. The identified studies according to the inclusion/exclusion criteria were analyzed using fixed/random-effects models. Data were calculated and results of the meta-analysis were expressed as odd ratio (OR). sDTC was classified as S1 (≤1 cm) and S2 (>1 cm and ≤2 cm). A systematic analysis was performed to compare the difference of recurrence, survival and clinicopathological factors between the two subgroups of sDTC (S1 vs. S2). A total of 21 studies published between 2004 and 2017 enrolling 219,291 patients were included. Findings showed that, S2 was associated with higher recurrence risk compared with S1 (OR=1.575, 95% CI=1.428–1.738; P<0.05). There was no statistical difference in survival between S1 and S2, but significant statistical heterogeneity (OR=1.160, 95% CI=0.810–1.662; P=0.448; I2=75.8%). Meta-regression analysis revealed publication year potentially caused the heterogeneity (P<0.05). Comparison of small papillary thyroid carcinoma alone agreed with the results of sDTC. T1b increased the risk of recurrence (OR=1.520; 95% CI=1.072–2.155; P<0.05) and death (OR=1.504; 95% CI 1.353–1.672; P<0.05) compared with T1a. S2 associated with extrathyroidal extension (OR=2.575; 95% CI=1.603–4.135; P<0.05), bilaterality (OR=2.278; 95% CI=1.905–2.723; P<0.05), vascular invasion (OR=4.494; 95% CI=2.812–7.183; P<0.05) and lymph node metastases (OR=1.12; 95% CI=1.10–1.14; P<0.05). Our analysis suggested it is necessary to subdivide sDTC into S1 and S2 owing to their different effects on prognosis, especially recurrence.
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Affiliation(s)
- Ting-Ting Zhang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Cun-Fu Li
- Department of General Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Shi-Shuai Wen
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Dong-Zhe Huang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Guo-Hua Sun
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Yong-Xue Zhu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Yu Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Qing-Hai Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Ning Qu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Rong-Liang Shi
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
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Differentiated Thyroid Cancer Outcomes After Surgery and Activity-Adjusted 131I Theragnostics. Clin Nucl Med 2019; 44:11-20. [PMID: 30371575 DOI: 10.1097/rlu.0000000000002321] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of this study was to determine clinical outcomes in patients with differentiated thyroid cancer after surgery and activity-adjusted I therapy informed by diagnostic I scans with SPECT/CT (Dx scan). METHODS Single-institution retrospective cohort study analysis of clinical outcomes after 1 to 5 years (mean, 39.6 ± 23.4 months) of follow-up in 350 patients with differentiated thyroid cancer associated with histopathologic risk factors, nodal metastases, and/or distant metastases. Postoperatively, all patients underwent Dx scans for completion of staging and risk stratification, and I therapy was based on integration of information from histopathology, stimulated thyroglobulin and scintigraphy. RESULTS Twenty-three patients (6.6%) underwent reoperative neck dissection for removal of unsuspected residual nodal metastases identified on Dx scans. Clinical outcomes were as follows: 84.3% complete response, 1.4% biochemical incomplete response, 2.3% indeterminate response, and 12% structural incomplete response. Of the entire cohort, only 8 patients (2.3%) had persistent iodine-avid metastatic disease, which required repeated I therapy. Of 31 patients with iodine-avid distant metastases identified on Dx scans, 13 patients (42%) achieved complete response with a single I treatment. CONCLUSIONS Detection of regional and distant metastases on postoperative Dx scans permits adjustment of prescribed I activity for targeted treatment, as compared with fixed-activity ablation. This approach resulted in complete response after a single I treatment in 88% patients with histopathologic risk factors and regional metastases and 42% patients with distant metastases. Most patients with structural incomplete response (81%) had elevated thyroglobulin levels with negative follow-up I scans and positive PET/CT and/or CT scans consistent with altered tumor biology (non-iodine-avid disease).
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Gao R, Jia X, Liang Y, Fan K, Wang X, Wang Y, Yang L, Yang A, Zhang G. Papillary Thyroid Micro Carcinoma: The Incidence of High-Risk Features and Its Prognostic Implications. Front Endocrinol (Lausanne) 2019; 10:74. [PMID: 30828316 PMCID: PMC6384240 DOI: 10.3389/fendo.2019.00074] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/28/2019] [Indexed: 02/04/2023] Open
Abstract
Background: The current management of papillary thyroid micro carcinoma (PTMC) has become more conservative. However, high-risk characteristics that can only be revealed post-surgically exist. Patients and clinicians need to estimate the risks and understand the prognostic meaning of these factors. Methods: We retrospectively analyzed 246 consecutive patients with PTMC who underwent surgery at our institution between 2015 and 2017. Clinical and histopathological parameters that may indicate recurrent disease were investigated. The responses to therapy in cases with different risks of recurrence were analyzed. Results: A total of 79.26% (195/246) of patients received total thyroidectomy (TT), of whom 177 (90.77%) also received central lymph node dissection. Radioiodine ablation (RAI) was applied in 64.23% (158/246) of patients. Intermediate-high risk features were identified in 27.64% (68/246) after primary treatment. After a median follow-up of 18 months (range, 6-39 months), 121 of 158 (76.58%) patients who received TT+RAI were evaluated as an excellent response. An incomplete response (IR) was observed in 14.56% (23/158) of this group of PTMC. Multivariate analysis identified extra thyroid extension (P = 0.001) and intermediate-high risk stratification (P = 0.014) as significant and independent risk factors for an IR. Conclusions: A total of 27.64% of PTMC cases evaluated as a low risk of recurrence pre-surgery showed intermediate to high risk disease post-surgery, and this leads to a higher rate of IR.
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Affiliation(s)
- Rui Gao
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Xi Jia
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Yiqian Liang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Kun Fan
- Department of Thoracic Surgery, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Xiaoxiao Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Yuanbo Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Lulu Yang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Aimin Yang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Guangjian Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, China
- *Correspondence: Guangjian Zhang
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Diagnostic 123I Whole Body Scan Prior to Ablation of Thyroid Remnant in Patients With Papillary Thyroid Cancer. Clin Nucl Med 2018; 43:705-709. [DOI: 10.1097/rlu.0000000000002246] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Albano D, Bertagna F, Bonacina M, Durmo R, Cerudelli E, Gazzilli M, Panarotto MB, Formenti AM, Mazziotti G, Giustina A, Giubbini R. Possible delayed diagnosis and treatment of metastatic differentiated thyroid cancer by adopting the 2015 ATA guidelines. Eur J Endocrinol 2018; 179:143-151. [PMID: 29899030 DOI: 10.1530/eje-18-0253] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/07/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVE According to the 2015 American Thyroid Association (ATA) guidelines, thyroid ablation by iodine-131 (I-131) therapy is absolutely recommended only in patients with high-risk differentiated thyroid cancer (DTC). Often distant metastases are not recognized early and they can stay silent for long time. The aim of our study was to retrospectively analyze the prevalence of metastatic disease before and after I-131 and to evaluate the influence of the new ATA guidelines in the management of DTC. METHODS We retrospectively analyzed 140 patients showing distant metastases. All metastases were detected by whole-body scan after I-131 and confirmed by histology and/or other imaging modalities. RESULTS In 26/140 patients metastases were detected before I-131, while in 114/140 were discovered after I-131. Comparing patients with metastases detected before and after I-131, no differences were demonstrated considering age, sex, histotype, tumor size, multifocality of cancer and metastatic localization. Metastatic DTC discovered before radioiodine had higher thyroglobulin and received a higher radioiodine total activity and number of treatments. Considering patients with distant metastases, according to the 2015 ATA guidelines, 38 patients would have been categorized as high risk, 22 as low risk and 80 as intermediate risk. Among intermediate-risk patients, only in 25 cases (31%) I-131 treatment would have been appropriate according to 2015 ATA recommendations; in the remaining 56 cases (69%), I-131 would not have been recommended. CONCLUSIONS According to the 2015 ATA guidelines, most of metastatic patients would not have been treated after surgery, with the risk of late diagnosis and delayed treatment.
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Affiliation(s)
| | - Francesco Bertagna
- Nuclear Medicine, University of Brescia and Spedali Civili Brescia, Brescia, Italy
| | | | - Rexhep Durmo
- Nuclear Medicine, Spedali Civili Brescia, Brescia, Italy
| | | | - Maria Gazzilli
- Nuclear Medicine, Spedali Civili Brescia, Brescia, Italy
| | | | | | | | - Andrea Giustina
- Endocrinology, Vita-Salute San Raffaele University, Milan, Italy
| | - Raffaele Giubbini
- Nuclear Medicine, University of Brescia and Spedali Civili Brescia, Brescia, Italy
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40
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Post-operative radioiodine therapy (RaIT) as adjuvant therapy in low–intermediate risk differentiated thyroid cancer. Clin Transl Imaging 2018. [DOI: 10.1007/s40336-018-0298-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Avram AM, Dewaraja YK. Thyroid Cancer Radiotheragnostics: the case for activity adjusted 131I therapy. Clin Transl Imaging 2018; 6:335-346. [PMID: 30911535 DOI: 10.1007/s40336-018-0291-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Radiotheragnostics represents the systematic integration of diagnostic imaging and therapeutics using radionuclides targeting specific characteristics of tumor biology. Radioiodine (131I) is the classic radiotheragnostic agent used for the diagnosis and treatment of differentiated thyroid cancer (DTC) based on sodium-iodine symporter expression in normal and neoplastic thyroid tissue. Application of radiotheragnostics principles in thyroid cancer involves using pre-ablation diagnostic scans (Dx Scans) for detection of iodine-avid regional and distant metastatic disease and patient-individualized targeted 131I therapy with goal of maximizing the benefits of the first therapeutic 131I administration. Clinically available nuclear medicine imaging technology has significantly evolved over the past 10 years with the introduction of hybrid SPECT/CT and PET/CT systems, as well as advances in iterative image reconstruction with modeling of image degrading physical factors. This progress makes possible the acquisition of accurate diagnostic radioiodine scintigraphy capable of identifying regional and distant metastatic disease, which can be used for 131I treatment planning and delivery of activity adjusted 131I therapy for achieving intended treatment goals (e.g. remnant ablation, adjuvant 131 I treatment and targeted 131-I treatment). The overarching aim of thyroid cancer radiotheragnostics is to optimize the balance between 131I therapeutic efficacy and potential side-effects on non-target tissues.
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Affiliation(s)
- Anca M Avram
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuni K Dewaraja
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI 48109, USA
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Postoperative serum thyroglobulin and neck ultrasound to drive decisions about iodine-131 therapy in patients with differentiated thyroid carcinoma: an evidence-based strategy? Eur J Nucl Med Mol Imaging 2018; 45:2155-2158. [DOI: 10.1007/s00259-018-4110-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 07/25/2018] [Indexed: 01/13/2023]
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Jin Y, Van Nostrand D, Cheng L, Liu M, Chen L. Radioiodine refractory differentiated thyroid cancer. Crit Rev Oncol Hematol 2018; 125:111-120. [PMID: 29650270 DOI: 10.1016/j.critrevonc.2018.03.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 01/22/2018] [Accepted: 03/21/2018] [Indexed: 12/17/2022] Open
Abstract
Differentiated thyroid cancer (DTC) is usually curable with surgery, radioactive iodine (RAI), and thyroid-stimulating hormone (TSH) suppression. However, local recurrence and/or distant metastases occur in approximately 15% of cases during follow-up, and nearly two-thirds of these patients will become RAI-refractory (RR-DTC) with a poor prognosis. This review focuses on the most challenging and rapidly evolving aspects of RR-DTC, and we discuss the considerable improvement in more accurately defining RR-DTC, more effective therapeutic strategies, and describe the diagnosis, pathogenesis, and future prospects of RR-DTC. Along with the detection of serum thyroglobulin and anatomic imaging modalities, such as ultrasound and computer tomography, radionuclide molecular imaging plays a vital role in the evaluation of RR-DTC. In addition, continual progress has been made in the management of RR-DTC, including watchful waiting under appropriate TSH suppression, local treatment approaches, and systemic therapies (molecular targeted therapy, redifferentiation therapy, gene therapy, and cancer immunotherapy). These all hold promise to change the natural history of RR-DTC.
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Affiliation(s)
- Yuchen Jin
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China.
| | - Douglas Van Nostrand
- MedStar Health Research Institute and Washington Hospital Center, Washington, DC, 20010, United States.
| | - Lingxiao Cheng
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China.
| | - Min Liu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China.
| | - Libo Chen
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China.
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Predicting 131I-avidity of metastases from differentiated thyroid cancer using 18F-FDG PET/CT in postoperative patients with elevated thyroglobulin. Sci Rep 2018. [PMID: 29531251 PMCID: PMC5847528 DOI: 10.1038/s41598-018-22656-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The quantitative relationship between iodine and glucose metabolism in metastases from differentiated thyroid cancer (DTC) remains unknown. Aim of the prospective study was to establish the value of 18F-FDG PET/CT in predicting 131I-avidity of metastases from DTC before the first radioiodine therapy. A total of 121 postoperative DTC patients with elevated stimulated serum thyroglobulin (ssTg) who underwent 131I adjuvant therapy or therapy after 18F-FDG PET/CT scan were enrolled. The Receiver operating characteristic curve was established to create an optimal cut-off point and evaluate the value of SUVmax for predicting 131I-avidity. In our study, the median SUVmax in 131I-nonavid metastatic target lesions was also significantly higher than that in 131I-avid metastatic target lesions (5.37 vs. 3.30; P = 0.000). At a cut-off value of 4.0 in SUVmax, the area under curve was 0.62 with the sensitivity, specificity, positive predictive value and negative predictive value of 75.3%, 56.7%, 76.1%, and 54.8%, respectively. These results suggest that 18F-FDG PET/CT may be of great value in identifying metastases in postoperative DTC patients with elevated ssTg before 131I administration, leading to an improved management of disease. 18F-FDG positive metastatic DTC with SUVmax of greater than 4.0 possesses higher probability of non-avidity to radioiodine.
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Spanu A, Nuvoli S, Gelo I, Mele L, Piras B, Madeddu G. Role of Diagnostic 131I SPECT/CT in Long-Term Follow-up of Patients with Papillary Thyroid Microcarcinoma. J Nucl Med 2018; 59:1510-1515. [DOI: 10.2967/jnumed.117.204636] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/26/2018] [Indexed: 01/30/2023] Open
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46
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PET/MR Imaging in Head and Neck Cancer: Current Applications and Future Directions. Magn Reson Imaging Clin N Am 2018; 26:167-178. [PMID: 29128003 DOI: 10.1016/j.mric.2017.08.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Clinical PET/MR imaging is being implemented at institutions worldwide as part of the standard-of-care imaging for select oncology patients. This article focuses on oncologic applications of PET/MR imaging in cancers of the head and neck. Although current published literature is relatively sparse, the potential benefits of a hybrid modality of PET/MR imaging are discussed along with several possible areas of research. With the increasing number of PET/MR imaging scanners in clinical use and ongoing research, the role of PET/MR imaging in the management of head and neck cancer is likely to become more evident in the near future.
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47
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Ginat DT, Avram AM. Chapter 4 Thyroid Malignancy: Staging and Restaging. Semin Ultrasound CT MR 2017; 38:495-505. [PMID: 29031366 DOI: 10.1053/j.sult.2017.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Determining the extent of disease is necessary for guiding the management of thyroid carcinomas. Diagnostic imaging, including ultrasound, computed tomography, magnetic resonance imaging, and nuclear medicine scans, plays an essential role in staging and restaging of thyroid carcinomas. This article reviews the approaches and imaging findings for evaluating the primary tumor, regional lymph node metastases, and distant metastases. In addition, potential pitfalls are discussed and depicted.
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Affiliation(s)
- Daniel Thomas Ginat
- Department of Radiology, University of Chicago, Pritzker School of Medicine, Chicago, IL.
| | - Anca M Avram
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI
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Liu M, Chai L, Luo Q, Ruan M, Cheng L, Lv Z, Chen L. 99mTc-pertechnetate-avid metastases from differentiated thyroid cancer are prone to benefit from 131I therapy: A prospective observational study. Medicine (Baltimore) 2017; 96:e7631. [PMID: 28816945 PMCID: PMC5571682 DOI: 10.1097/md.0000000000007631] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The aim of this study is to determine the contribution of neck and chest Tc-pertechnetate scan to the management of postoperative patients with suspicious metastatic differentiated thyroid cancer (DTC), particularly to the prediction of response to radioiodine (I) therapy. Just before I administration, a total of 184 postoperative DTC patients with stimulated serum thyroglobulin (ssTg) >10 ng/mL were enrolled to undergo neck and chest Tc-pertechnetate scan, which were directly compared with post-therapeutic I scan to determine the concordance of site and number of metastatic lesions. The percentage changes in ssTg between Tc-pertechnetate-avid group and Tc-pertechnetate-nonavid group were compared, and the response to I in both groups was analyzed according to the nature of Tc-pertechnetate avidity as well. The percentages of concordance between Tc-pertechnetate and I scan in detecting metastases were 65.7% and 26.0% in per-patient and per-site analyses with low unweighted kappa, respectively. Tc-pertechnetate scan led to a change in therapeutic decision making in 19/184 (10.3%) patients. In 72 patients with I-avid metastases, the ssTg in Tc-pertechnetate-avid group (n = 13) decreased significantly compared with that in Tc-pertechnetate-nonavid group (n = 59) (median: -81.56% vs -48.14%; Z = -4.276, P = .000). The difference of therapeutic response between Tc-pertechnetate-avid group and Tc-pertechnetate-nonavid group was statistically significant (χ = 8.4; P = .03). Although the consistency between Tc-pertechnetate scan before I administration and post-therapy I scan in detecting metastases is low, identifying metastases in postoperative DTC patients with elevated ssTg via Tc-pertechnetate scan prior to I therapy provides incremental value for therapeutic decision making. Notably, patients with Tc-pertechnetate-avid metastases may be more prone to benefit from I therapy than those with Tc-pertechnetate-nonavid metastases.
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Affiliation(s)
- Min Liu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital
| | - Li Chai
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University
| | - Qiong Luo
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University
| | - Maomei Ruan
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Lingxiao Cheng
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital
| | - Zhongwei Lv
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University
| | - Libo Chen
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital
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Haymart MR, Esfandiari NH, Stang MT, Sosa JA. Controversies in the Management of Low-Risk Differentiated Thyroid Cancer. Endocr Rev 2017; 38. [PMID: 28633444 PMCID: PMC5546880 DOI: 10.1210/er.2017-00067] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Controversy exists over optimal management of low-risk differentiated thyroid cancer. This controversy occurs in all aspects of management, including surgery, use of radioactive iodine for remnant ablation, thyroid hormone supplementation, and long-term surveillance. Limited and conflicting data, treatment paradigm shifts, and differences in physician perceptions contribute to the controversy. This lack of physician consensus results in wide variation in patient care, with some patients at risk for over- or undertreatment. To reduce patient harm and unnecessary worry, there is a need to design and implement studies to address current knowledge gaps.
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Affiliation(s)
- Megan R Haymart
- Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109
| | - Nazanene H Esfandiari
- Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109
| | - Michael T Stang
- Division of Endocrine Surgery, Department of Surgery, Duke University, Durham, North Carolina 27710
| | - Julia Ann Sosa
- Division of Endocrine Surgery, Department of Surgery, Duke University, Durham, North Carolina 27710
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Abstract
Differentiated thyroid cancer (DTC) is a rare malignant disease, although its incidence has increased over the last few decades. It derives from follicular thyroid cells. Generally speaking, the prognosis is excellent. If treatment according to the current guidelines is given, cases of recurrence or persistence are rare. DTC requires special expertise by the treating physician. In recent years, new therapeutic options for these patients have become available. For this article we performed a systematic literature review with special focus on the guidelines of the American Thyroid Association, the European Association of Nuclear Medicine, and the German Society of Nuclear Medicine. For DTC, surgery and radioiodine therapy followed by levothyroxine substitution remain the established therapeutic procedures. Even metastasized tumors can be cured this way. However, in rare cases of radioiodine-refractory tumors, additional options are to be discussed. These include strict suppression of thyroid-stimulating hormone (also known as thyrotropin, TSH) and external local radiotherapy. Systemic cytostatic chemotherapy does not play a significant role. Recently, multikinase or tyrosine kinase inhibitors have been approved for the treatment of radioiodine-refractory DTC. Although a benefit for overall survival has not been shown yet, these new drugs can slow down tumor progression. However, they are frequently associated with severe side effects and should be reserved for patients with threatening symptoms only.
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