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Guja KE, Ganjoo KN, Iagaru A. Molecular Imaging in Soft-tissue Sarcoma: Evolving Role of FDG PET. Semin Nucl Med 2024; 54:332-339. [PMID: 38433024 DOI: 10.1053/j.semnuclmed.2024.02.001] [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: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 03/05/2024]
Abstract
Soft tissue sarcomas are a rare and heterogenous group of tumors that account for 2% of all cancer-related deaths. Molecular imaging with FDG PET can offer valuable metabolic information to help inform clinical management of soft tissue sarcomas that is unique and complementary to conventional diagnostic imaging techniques. FDG PET imaging often correlates with tumor grade, can help guide biopsy, and frequently detects additional sites of disease compared to conventional imaging in patients being considered for definitive or salvage therapy. Traditional size-based evaluation of treatment response is often inadequate in soft tissue sarcoma and changes in metabolic activity can add significant value to interim and end of treatment imaging for high-grade sarcomas. FDG PET can be used for detection of recurrence or malignant transformation and thus play a vital role in surveillance. This article reviews the evolving role of FDG PET in initial diagnosis, staging, treatment response assessment, and restaging. Further studies on the use of FDG PET in soft sarcoma are needed, particularly for rare histopathologic subtypes.
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Affiliation(s)
- Kip E Guja
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, H2200, Stanford, CA
| | - Kristen N Ganjoo
- Division of Oncology, Department of Medicine, Stanford University, 900 Blake Wilbur Drive, Stanford CA
| | - Andrei Iagaru
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, H2200, Stanford, CA.
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2
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Schoot RA, van Ewijk R, von Witzleben AA, Kao SC, Merks JHMH, Morosi C, Pace E, Shulkin BL, Ferrari A, von Kalle T, van Rijn RR, Weiss AR, Sparber-Sauer M, Ter Horst SAJ, McCarville MB. INternational Soft Tissue saRcoma ConsorTium (INSTRuCT) consensus statement: Imaging recommendations for the management of rhabdomyosarcoma. Eur J Radiol 2023; 166:111012. [PMID: 37541182 DOI: 10.1016/j.ejrad.2023.111012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/06/2023]
Abstract
Rhabdomyosarcoma is the most common soft-tissue neoplasm in the pediatric population. The survival of children with rhabdomyosarcoma has only marginally improved over the past 25 years and remains poor for those with metastatic disease. A significant challenge to advances in treatment of rhabdomyosarcoma is the relative rarity of this disease, necessitating years to complete clinical trials. Progress can be accelerated by international cooperation and sharing national experiences. This necessitates agreement on a common language to describe patient cohorts and consensus standards to guide diagnosis, treatment, and response assessment. These goals formed the premise for creating the INternational Soft Tissue saRcoma ConsorTium (INSTRuCT) in 2017. Multidisciplinary members of this consortium have since developed international consensus statements on the diagnosis, treatment, and management of pediatric soft-tissue sarcomas. Herein, members of the INSTRuCT Diagnostic Imaging Working Group present international consensus recommendations for imaging of patients with rhabdomyosarcoma at diagnosis, at staging, and during and after completion of therapy. The intent is to promote a standardized imaging approach to pediatric patients with this malignancy to create more-reliable comparisons of results of clinical trials internationally, thereby accelerating progress in managing rhabdomyosarcoma and improving survival.
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Affiliation(s)
- Reineke A Schoot
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.
| | - Roelof van Ewijk
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.
| | - Anna-Anais von Witzleben
- Institute of Radiology Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin, Klinikum Stuttgart, Stuttgart, Germany.
| | - Simon C Kao
- Department of Radiology, The University of Iowa Carver College of Medicine, Iowa City, IA, USA.
| | - J H M Hans Merks
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.
| | - Carlo Morosi
- Department of Radiology, Istituto Nazionale Tumori, Milan, Italy.
| | - Erika Pace
- Department of Radiology, The Royal Marsden NHS Foundation Trust, London, England, United Kingdom.
| | - Barry L Shulkin
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Andrea Ferrari
- Pediatric Oncology Unit, Medical Oncology and Hematology Department, Istituto Nazionale Tumori, Milan, Italy.
| | - Thekla von Kalle
- Institute of Radiology Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin, Klinikum Stuttgart, Stuttgart, Germany.
| | - Rick R van Rijn
- Department of Radiology and Nuclear Medicine, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
| | - Aaron R Weiss
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, Maine Medical Center, Portland, ME, USA.
| | - Monika Sparber-Sauer
- Klinikum der Landeshauptstadt Stuttgart gKAöR, Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pädiatrie 5 (Pädiatrische Onkologie, Hämatologie, Immunologie), Stuttgart, Germany; University of Medicine Tübingen, Tübingen, Germany.
| | - Simone A J Ter Horst
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Radiology and Nuclear Medicine, Wilhelmina Children's Hospital/University Medical Centre Utrecht, Utrecht, the Netherlands.
| | - M Beth McCarville
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN, USA.
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3
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Seth N, Seth I, Bulloch G, Siu AHY, Guo A, Chatterjee R, MacManus M, Donnan L. 18 F-FDG PET and PET/CT as a diagnostic method for Ewing sarcoma: A systematic review and meta-analysis. Pediatr Blood Cancer 2022; 69:e29415. [PMID: 34709700 DOI: 10.1002/pbc.29415] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/28/2021] [Accepted: 10/02/2021] [Indexed: 11/07/2022]
Abstract
PURPOSE The aim of this study was to evaluate the diagnostic accuracy of 18 -fluorodeoxyglucose-positron emission tomography (18 F-FDG PET) and PET/computed tomography (PET/CT) in imaging primary and metastatic lesions in Ewing sarcoma (ES). METHODS PubMed, Cochrane, Scopus, and Web of Science were searched for relevant studies. Data concerning 18 F-FDG PET/CT diagnostic accuracy were extracted and then analyzed using Open Meta-analyst software. Reported diagnostic accuracy outcomes included sensitivity, specificity, negative likelihood ratio (NLR), positive likelihood ratio (PLR), and diagnostic odds ratio. RESULTS Thirty-one studies with a total of 735 patients were included in this meta-analysis. The sensitivity and specificity of 18 F-FDG PET/CT were: 92.6% and 74.1% for total ES lesions, 96.7% and 68.3% for ES primary lesions, 76.1% and 92.4% for lung metastasis, 83.9% and 93.2% for bone metastasis, and 89.9% and 92.6% for ES recurrence, respectively. CONCLUSION 18 F-FDG PET/CT is sensitive and accurate in diagnosing, staging, and detecting the recurrence of ES compared with non-PET imaging. It has high accuracy for diagnosing recurrence of ES in bone metastases; however, CT remains a superior diagnostic method for detecting lung metastasis.
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Affiliation(s)
- Nimish Seth
- Department of Orthopaedic Surgery, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Ishith Seth
- Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, New South Wales, Australia
| | - Gabriella Bulloch
- Faculty of Science, Medicine and Health, University of Melbourne, Victoria, Australia
| | - Adrian Hang Yue Siu
- Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, New South Wales, Australia
| | - Allen Guo
- Faculty of Science, Medicine and Health, University of New South Wales, New South Wales, Australia
| | - Rukmini Chatterjee
- Illawarra Shoalhaven Local Health District, Wollongong Hospital, Wollongong, New South Wales, Australia
| | - Michael MacManus
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria
| | - Leo Donnan
- Department of Orthopaedic Surgery, The Royal Children's Hospital, Melbourne, Victoria, Australia
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Vaarwerk B, Breunis WB, Haveman LM, de Keizer B, Jehanno N, Borgwardt L, van Rijn RR, van den Berg H, Cohen JF, van Dalen EC, Merks JH. Fluorine-18-fluorodeoxyglucose (FDG) positron emission tomography (PET) computed tomography (CT) for the detection of bone, lung, and lymph node metastases in rhabdomyosarcoma. Cochrane Database Syst Rev 2021; 11:CD012325. [PMID: 34753195 PMCID: PMC8577863 DOI: 10.1002/14651858.cd012325.pub2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Rhabdomyosarcoma (RMS) is the most common paediatric soft-tissue sarcoma and can emerge throughout the whole body. For patients with newly diagnosed RMS, prognosis for survival depends on multiple factors such as histology, tumour site, and extent of the disease. Patients with metastatic disease at diagnosis have impaired prognosis compared to those with localised disease. Appropriate staging at diagnosis therefore plays an important role in choosing the right treatment regimen for an individual patient. Fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) is a functional molecular imaging technique that uses the increased glycolysis of cancer cells to visualise both structural information and metabolic activity. 18F-FDG-PET combined with computed tomography (CT) could help to accurately stage the extent of disease in patients with newly diagnosed RMS. In this review we aimed to evaluate whether 18F-FDG-PET could replace other imaging modalities for the staging of distant metastases in RMS. OBJECTIVES To determine the diagnostic accuracy of 18F-FDG-PET/CT imaging for the detection of bone, lung, and lymph node metastases in RMS patients at first diagnosis. SEARCH METHODS We searched MEDLINE in PubMed (from 1966 to 23 December 2020) and Embase in Ovid (from 1980 to 23 December 2020) for potentially relevant studies. We also checked the reference lists of relevant studies and review articles; scanned conference proceedings; and contacted the authors of included studies and other experts in the field of RMS for information about any ongoing or unpublished studies. We did not impose any language restrictions. SELECTION CRITERIA We included cross-sectional studies involving patients with newly diagnosed proven RMS, either prospective or retrospective, if they reported the diagnostic accuracy of 18F-FDG-PET/CT in diagnosing lymph node involvement or bone metastases or lung metastases or a combination of these metastases. We included studies that compared the results of the 18F-FDG-PET/CT imaging with those of histology or with evaluation by a multidisciplinary tumour board as reference standard. DATA COLLECTION AND ANALYSIS Two review authors independently performed study selection, data extraction, and methodological quality assessement according to Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2). We analysed data for the three outcomes (nodal involvement and lung and bone metastases) separately. We used data from the 2 × 2 tables (consisting of true positives, false positives, true negatives, and false negatives) to calculate sensitivity and specificity in each study and corresponding 95% confidence intervals. We did not consider a formal meta-analysis to be relevant because of the small number of studies and substantial heterogeneity between studies. MAIN RESULTS Two studies met our inclusion criteria. The diagnostic accuracy of 18F-FDG-PET/CT was reported in both studies, which included a total of 36 participants. We considered both studies to be at high risk of bias for the domain reference standard. We considered one study to be at high risk of bias for the domain index test and flow and timing. Sensitivity and specificity of 18F-FDG-PET/CT for the detection of bone metastases was 100% in both studies (95% confidence interval (CI) for sensitivity was 29% to 100% in study one and 40% to 100% in study two; 95% CI for specificity was 83% to 100% in study one and 66% to 100% in study two). The reported sensitivity of 18F-FDG-PET/CT for the detection of lung metastases was not calculated since only two participants in study two showed lung metastases, of which one was detected by 18F-FDG-PET/CT. Reported specificity was 96% in study one (95% CI 78% to 100%) and 100% (95% CI 72% to 100%) in study two. The reported sensitivity for the detection of nodal involvement was 100% (95% CI 63% to 100% in study one and 40% to 100% in study two); the reported specificity was 100% (95% CI 78% to 100%) in study one and 89% (95% CI 52% to 100%) in study two. AUTHORS' CONCLUSIONS The diagnostic accuracy of 18F-FDG-PET/CT for the detection of bone, lung, and lymph node metastases was reported in only two studies including a total of only 36 participants with newly diagnosed RMS. Because of the small number of studies (and participants), there is currently insufficient evidence to reliably determine the diagnostic accuracy of 18F-FDG-PET/CT in the detection of distant metastases. Larger series evaluating the diagnostic accuracy of 18F-FDG-PET/CT for the detection of metastases in patients with RMS are necessary.
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Affiliation(s)
- Bas Vaarwerk
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Department of Paediatric Oncology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Willemijn B Breunis
- Department of Paediatric Oncology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Department of Oncology and Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Lianne M Haveman
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Department of Paediatric Oncology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Bart de Keizer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | - Nina Jehanno
- Department of Nuclear Medicine, Institut Curie, Paris, France
| | - Lise Borgwardt
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen , Denmark
| | - Rick R van Rijn
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Henk van den Berg
- Department of Paediatric Oncology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Jérémie F Cohen
- Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Centre of Research in Epidemiology and Statistics (CRESS), UMR1153, Université de Paris, Paris, France
- Department of General Pediatrics and Pediatric Infectious Diseases, Necker - Enfants malades hospital, Assistance Publique - Hôpitaux de Paris, Paris Descartes University, Paris, France
| | | | - Johannes Hm Merks
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Department of Paediatric Oncology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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5
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Koerber SA, Finck R, Dendl K, Uhl M, Lindner T, Kratochwil C, Röhrich M, Rathke H, Ungerechts G, Adeberg S, Herfarth K, Jaeger D, Debus J, Haberkorn U, Giesel FL. Novel FAP ligands enable improved imaging contrast in sarcoma patients due to FAPI-PET/CT. Eur J Nucl Med Mol Imaging 2021; 48:3918-3924. [PMID: 34018010 PMCID: PMC8484190 DOI: 10.1007/s00259-021-05374-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/18/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE A high expression of fibroblast activation protein (FAP) was observed in multiple sarcomas, indicating an enormous potential for PET/CT using 68Ga-radiolabeled inhibitors of FAP (FAPI). Therefore, this retrospective study aimed to evaluate the role of the novel hybrid imaging probe for sarcomas as a first clinical evaluation. METHODS A cohort of 15 patients underwent 68Ga-FAPI-PET/CT for staging or restaging. The acquisition of PET scans was performed 60 min after administration of 127 to 308 MBq of the tracer. The uptake of 68Ga-FAPI in malignant tissue as well as in healthy organs was quantified by standardized uptake values SUVmean and SUVmax. RESULTS Excellent tumor-to-background ratios (> 7) could be achieved due to low background activity and high SUVmax in primary tumors (median 7.16), local relapses (median 11.47), and metastases (median 6.29). The highest uptake was found for liposarcomas and high-grade disease (range 18.86-33.61). A high SUVmax (> 10) was observed for clinically more aggressive disease. CONCLUSION These preliminary findings suggest a high potential for the clinical use of 68Ga-FAPI-PET/CT for patients diagnosed with sarcoma.
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Affiliation(s)
- Stefan A Koerber
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.
- National Center for Tumor Diseases (NCT), Heidelberg, Germany.
| | - R Finck
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - K Dendl
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - M Uhl
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- Department of Radiation Oncology, Klinikum Ludwigshafen, Ludwigshafen, Germany
| | - T Lindner
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - C Kratochwil
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - M Röhrich
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - H Rathke
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - G Ungerechts
- Department of Medical Oncology, Heidelberg University Hospital and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - S Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - K Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - D Jaeger
- Department of Medical Oncology, Heidelberg University Hospital and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - J Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- German Cancer Consortium (DKTK), partner site Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - U Haberkorn
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
- German Cancer Consortium (DKTK), partner site Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - F L Giesel
- Department of Nuclear Medicine, Heidelberg University Hospital, Heidelberg, Germany
- German Cancer Consortium (DKTK), partner site Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Nuclear Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
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Mercolini F, Zucchetta P, Jehanno N, Corradini N, Van Rijn RR, Rogers T, Cameron A, Scarzello G, Coppadoro B, Minard-Colin V, Gallego S, Chisholm J, Merks JH, Bisogno G. Role of 18F-FDG-PET/CT in the staging of metastatic rhabdomyosarcoma: a report from the European paediatric Soft tissue sarcoma Study Group. Eur J Cancer 2021; 155:155-162. [PMID: 34385068 DOI: 10.1016/j.ejca.2021.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/25/2021] [Accepted: 07/08/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Initial staging of rhabdomyosarcoma is crucial for prognosis and to tailor the treatment. The standard radiology workup (SRW) includes magnetic resonance imaging, chest computed tomography (CT) and bone scintigraphy, but 18 Fluorine-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) (18F-FDG-PET/CT (PET-CT)) use is increasing. The aim of this study was to evaluate the impact of PET-CT in the initial staging of patients with metastatic rhabdomyosarcoma enrolled in the European protocol MTS2008. METHODS Two authors retrospectively reviewed the SRW and PET-CT reports comparing the number and sites of metastases detected. For bone marrow involvement, PET-CT and bone marrow aspirates/biopsies were compared. RESULTS Among 263 metastatic patients enrolled from October 2008 to December 2016, 121 had PET-CT performed at diagnosis, and for 118 of 121 patients, both PET-CT and radiological reports were available for review. PET-CT showed higher sensitivity than SRW in the ability to detect locoregional (96.2% versus 78.5%, P value = 0.0013) and distant lymph node involvement (94.8% versus 79.3%, P value = 0.0242), but sensitivity was lower for intrathoracic sites (lung 79.6% versus 100%, P value = 0.0025). For bone metastasis, PET-CT was more sensitive than bone scintigraphy (96.4% versus 67.9%, P value = 0.0116). The PET-CT sensitivity and specificity to detect marrow involvement were 91.8% and 93.8%, respectively. The mean number of metastatic sites was 1.94 (range 0-5) with PET-CT and 1.72 (range 0-5) with SRW. In four patients (3.4%), PET-CT changed the staging from localised to metastatic disease. CONCLUSION PET can identify metastatic disease not evident on SRW in a small number of patients. This is because of its higher ability to recognise lymph node and bone involvement. Chest CT remains essential to detect lesions in intrathoracic sites, which can be performed in a one stop-shot routine examination or on a dedicated chest CT scan. PET-CT could replace bone scintigraphy to study bone involvement.
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Affiliation(s)
- Federico Mercolini
- Pediatric Hematology and Oncology Unit, Department of Pediatrics, Bolzano Hospital, Bolzano, Italy.
| | - Pietro Zucchetta
- Nuclear Medicine Unit, Department of Medicine - DIMED, University Hospital of Padova, Padova, Italy
| | - Nina Jehanno
- Department of Nuclear Medicine, Institut Curie, PSL Research University, Paris, France
| | - Nadege Corradini
- Department of Pediatric Hematology and Oncology-IHOPe, Centre Léon Bérard, Lyon, France
| | - Rick R Van Rijn
- Department of Radiology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Timothy Rogers
- Department of Paediatric Surgery, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Alison Cameron
- Bristol Haematology and Oncology Hospital, University Hospitals Bristol and Weston, Bristol, UK
| | - Giovanni Scarzello
- Radiotherapy Division, Istituto Oncologico Veneto IOV - IRCCS, Padova, Italy
| | - Beatrice Coppadoro
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Veronique Minard-Colin
- Département de cancérologie de l'enfant et l'adolescent, INSERM U1015, Gustave Roussy, Université Paris-Saclay, 94805, Villejuif, France
| | - Soledad Gallego
- Servicio de Oncología y Hematología Pediatrica, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Julia Chisholm
- Children and Young Peoples Unit, Royal Marsden Hospital, Down's Road, Sutton, Surrey, UK
| | - J Hans Merks
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Gianni Bisogno
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padova, Padova, Italy
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7
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Welmant J, Helfre S, Carton M, Bolle S, Minard-Colin V, Corradini N, Pannier S, Rome A, Mansuy L, Vérité C, Castex MP, Kerr C, Defachelles AS, Bernier V, Orbach D. Pattern of relapse in pediatric localized extremity rhabdomyosarcomas correlated with locoregional therapies administered. Strahlenther Onkol 2021; 197:690-699. [PMID: 33914102 DOI: 10.1007/s00066-021-01780-7] [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: 12/17/2020] [Accepted: 03/26/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Treatment of extremity rhabdomyosarcomas (RMS) includes chemotherapy, surgery, and radiotherapy. Lymph node irradiation is recommended in the presence of regional node involvement at diagnosis. The aim of this study was to analyze the correlation between the pattern of relapse of non-metastatic extremity RMS and the initial therapies delivered. METHODS All patients with localized extremity RMS prospectively treated in France in the MMT-95 and RMS-05 protocols were selected. Extent of disease and pattern of relapse were evaluated by clinical examination and imaging. RESULTS We identified 59 patients with clinical characteristics corresponding to unfavorable prognostic factors. Twenty patients (34%) were considered to have lymph node involvement at diagnosis. Regional node biopsy was performed in 32 patients (54%) and modified the lymph node stage in 8 of the 59 patients (14%). Seventy-three percent of patients received radiotherapy. Fifty-two patients achieved first remission. Overall, 26 patients underwent complete tumor resection, 17 had R1 margins, and 5 were not operated due to early tumor progression. With a median follow-up of 82 months (range: 5-287), 18 relapses had occurred, at least locoregional in 12 cases. The 5‑year local and nodal control rates were 73% (63-86%) and 86% (77-95%), respectively. Five-year progression-free and overall survival were 57% (95%CI [45-72%]) and 70% (95%CI [58-84%]), respectively. CONCLUSION The main sites of extremity RMS relapse are locoregional. Nodal failures in non-irradiated fields are not uncommon. We recommend systematic biopsy of in-transit nodes, especially in alveolar RMS and/or RMS with regional positive nodes at diagnosis to ensure their negativity.
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Affiliation(s)
- Julien Welmant
- Department of Radiation Oncology and Physics, Institut du Cancer de Montpellier, Montpellier, France
| | - Sylvie Helfre
- Radiotherapy Department, Institut Curie, Paris, France
| | - Matthieu Carton
- PSL Research University, DRCI, Biométrie, Institut Curie, Saint-Cloud, France
| | - Stéphanie Bolle
- Department of Radiotherapy Oncology, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Véronique Minard-Colin
- Department of Oncology for Children and Adolescents, Gustave Roussy Cancer Campus, Villejuif, France
| | - Nadège Corradini
- Department of Paediatric Haematology and Oncology, Centre Léon Bérard, Lyon, France
| | - Stéphanie Pannier
- Department of Orthopaedic Paediatrics, Necker-Enfants-Malades Hospital, Paris, France
| | - Angélique Rome
- Department of Paediatric Oncology, CHU de Marseille, Hôpital de la Timone, Marseille, France
| | - Ludovic Mansuy
- Oncology Surgery Department, Institute of Cancerology of Lorraine, Nancy, France
| | - Cécile Vérité
- Paediatric Hematology Unit, Groupe Hospitalier Pellegrin, Bordeaux, France
| | | | - Christine Kerr
- Department of Radiation Oncology and Physics, Institut du Cancer de Montpellier, Montpellier, France
| | | | - Valérie Bernier
- Department of Radiotherapy Oncology, Institute of Cancerology of Lorraine, Nancy, France
| | - Daniel Orbach
- SIREDO Oncology Center (Care, Innovation, and research for children and AYA with cancer), PSL Research University, Institut Curie, Paris, France. .,French Pediatric Rare Tumor group (Fracture group), Institut Curie, 26, rue d'Ulm, 75005, Paris, France.
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Eosinophilic Cystitis Presenting as Possible Pediatric Rhabdomyosarcoma in Conventional Imaging Including 18F-FDG-PET/CT/MRI-A Rare Case. Diagnostics (Basel) 2021; 11:diagnostics11040672. [PMID: 33917971 PMCID: PMC8068401 DOI: 10.3390/diagnostics11040672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
Eosinophilic cystitis (EC) is a relatively rare, but benign inflammatory bladder disease compared to that of the malignant pediatric rhabdomyosarcoma (RMS), in which it can be mimicking on initial suspicion. The origin, symptoms and findings of both EC and RMS are still discussed and hence, lead to the challenge in distinguishing them by cystoscopy and several image modalities. We present a case in which cross-sectional imaging modalities including fluorine-18-fluro-2-deoxy-D-glucose (18F-FDG)-positron emission tomography (PET) / computed tomography (CT) / magnetic resonance imaging (MRI) (18F-FDG-PET/CT/MRI (The imaging modality 18F-FDG-PET/CT/MRI referring to two continuous scans scanned on the same 18F-FDG-tracer dose for both the whole-body 18F-FDG-PET/CT and the regional 18F-FDG-PET/MRI of the pelvis.)) raised suspicion of RMS. Hence, the final diagnosis of EC was established by repeated histopathology. It is important to have EC in mind when seeking differential diagnosis of malignant diseases like RMS in order to provide the correct treatment for the patient and highly homogenously increased 18F-FDG-uptake should raise the suspicion of EC as a differential diagnosis. Furthermore, 18F-FDG-uptake rate is suggested as a future potential biomarker for monitoring of therapeutic response in eosinophilic inflammatory diseases, thus more research on this topic is needed.
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Usefulness of 18f-FDG PET-CT in Staging, Restaging, and Response Assessment in Pediatric Rhabdomyosarcoma. Diagnostics (Basel) 2020; 10:diagnostics10121112. [PMID: 33371506 PMCID: PMC7767528 DOI: 10.3390/diagnostics10121112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/23/2020] [Accepted: 12/11/2020] [Indexed: 12/18/2022] Open
Abstract
Rhabdomyosarcoma is the most common soft-tissue sarcoma of childhood. Despite clinical advances, subsets of these patients continue to suffer high morbidity and mortality rates associated with their disease. Following the European guidelines for 18F-FDG PET and PET-CT imaging in pediatric oncology, the routine use of 18F-FDG PET-CT may be useful for patients affected by rhabdomyosarcoma, in staging, in the evaluation of response to therapy, and for restaging/detection of relapse. The European Pediatric Protocols are very old, and for staging and restaging, they recommend only radionuclide bone scan. The 18F-FDG PET-CT exam is listed as an optional investigation prescribed according to local availability and local protocols in the investigations panel required at the end of the treatment. We present two cases highlighting the usefulness of 18F-FDG PET-CT in managing pediatric patients affected by rhabdomyosarcoma, providing some bibliographic references.
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Annovazzi A, Rea S, Zoccali C, Sciuto R, Baldi J, Anelli V, Petrongari MG, Pescarmona E, Biagini R, Ferraresi V. Diagnostic and Clinical Impact of 18F-FDG PET/CT in Staging and Restaging Soft-Tissue Sarcomas of the Extremities and Trunk: Mono-Institutional Retrospective Study of a Sarcoma Referral Center. J Clin Med 2020; 9:jcm9082549. [PMID: 32781683 PMCID: PMC7463806 DOI: 10.3390/jcm9082549] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/31/2020] [Accepted: 08/04/2020] [Indexed: 12/14/2022] Open
Abstract
Background: Soft-tissue sarcomas (STS) represent a wide heterogeneous class of rare tumors. The exact role 18F-fluorodeoxyglucose positron emission/computed tomography (18F-FDG PET/CT) in the evaluation of STS is not well established. The aim of the present study was to evaluate how the use of 18F-FDG PET/CT in STS could influence patient therapy planning, looking for a possible added value over computed tomography and magnetic resonance imaging—the most used modalities in the study of STS. Differences in SUVmax according to histologic subtype and tumor grade were also considered. Methods: a total of 345 consecutive 18F-FDG PET/CT scans performed for initial staging (n = 171) or for suspected disease relapse (n = 174) in 282 patients with STS extracted from the local Information System database were retrospectively reviewed. Results: 18F-FDG PET/CT altered therapy planning in 80 cases (16.4% for staging and 29.9% in restaging), both for disease upstaging (58.8%) and downstaging (41.2%) Conclusions: 18F-FDG PET/CT could significantly influence management of patients with STS, particularly for restaging.
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Affiliation(s)
- Alessio Annovazzi
- Nuclear Medicine Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.R.); (R.S.)
- Correspondence:
| | - Sandra Rea
- Nuclear Medicine Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.R.); (R.S.)
| | - Carmine Zoccali
- Oncological Orthopaedics Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (C.Z.); (J.B.); (R.B.)
| | - Rosa Sciuto
- Nuclear Medicine Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.R.); (R.S.)
| | - Jacopo Baldi
- Oncological Orthopaedics Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (C.Z.); (J.B.); (R.B.)
| | - Vincenzo Anelli
- Radiology and Diagnostic Imaging Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy;
| | - Maria G. Petrongari
- Department of Radiation Oncology, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy;
| | - Edoardo Pescarmona
- Clinical Pathology, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy;
| | - Roberto Biagini
- Oncological Orthopaedics Unit, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy; (C.Z.); (J.B.); (R.B.)
| | - Virginia Ferraresi
- Medical Oncology 1, IRCCS—Regina Elena National Cancer Institute, 00144 Rome, Italy;
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Rodríguez-Alfonso B, Simó-Perdigó M, Orcajo Rincón J. Functional imaging in soft tissue sarcomas: Update of the indications for 18F-FDG-PET/CT. Rev Esp Med Nucl Imagen Mol 2020. [DOI: 10.1016/j.remnie.2020.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rodríguez-Alfonso B, Simó-Perdigó M, Orcajo Rincón J. Functional image in soft tissue sarcomas: An update of the indications of 18F-FDG-PET/CT. Rev Esp Med Nucl Imagen Mol 2020; 39:233-243. [PMID: 32616457 DOI: 10.1016/j.remn.2020.06.001] [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: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 11/29/2022]
Abstract
Soft tissue sarcomas (STS) are a rare and heterogeneous group of tumors. They account for 1% of solid malignant tumors in adults and 7% in children and are responsible for 2% of cancer mortality. They require a multidisciplinary approach in centers with experience. This collaboration aims to update the scientific evidence to strengthen, together with clinical experience, the bases for the use and limitations of 18F-FDG-PET/CT in STSs. The general recommendations for the use of PET/CT in STS at present are summarized as the initial evaluation of soft tissue tumours when conventional image does not establish benignity with certainty and this determines the approach; in biopsy guiding in selected cases; in the initial staging, as additional tool, for rhabdomyosarcoma and STS of extremities or superficial trunk and head and neck tumours; in the suspicion of local recurrence when the CT or MRI are inconclusive and in the presence of osteosynthesis or prosthetic material and in assessment of therapy response to local/systemic therapy in stages ii/iii. In addition, PET/CT has the added value of being a surrogate marker of the histopathological response and it provides prognostic information, both in the baseline study and after treatment.
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Affiliation(s)
- B Rodríguez-Alfonso
- Servicio de Medicina Nuclear, Hospital Universitario Puerta de Hierro de Majadahonda, Majadahonda, Madrid, España.
| | - M Simó-Perdigó
- Servicio de Medicina Nuclear, Hospital Universitari Vall d'Hebron, Barcelona, España
| | - J Orcajo Rincón
- Servicio de Medicina Nuclear, Hospital General Universitario Gregorio Marañón, Madrid, España; Miembro del Grupo Español de Investigación en Sarcomas (GEIS)
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Advances in image enhancement for sarcoma surgery. Cancer Lett 2020; 483:1-11. [PMID: 32247870 DOI: 10.1016/j.canlet.2020.03.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/19/2020] [Accepted: 03/29/2020] [Indexed: 12/12/2022]
Abstract
The recurrence rate of soft tissue and bone sarcomas strongly correlates to the status of the surgical margin after excision, yet excessive removal of tissue may lead to distinct, otherwise avoidable morbidity. Therefore, adequate margination of sarcomas both pre- and intra-operatively is a clinical necessity that has not yet fully been met. Current guidance for soft-tissue sarcomas recommends an ultrasound scan followed by magnetic resonance imaging (MRI). For bone sarcomas, two plane radiographs are required, followed similarly by an MRI scan. The introduction of more precise imaging modalities may reduce the morbidity associated with sarcoma surgery; the PET-CT and PET-MRI approaches in particular demonstrating high clinical efficacy. Despite advancements in the accuracy in pre-operative imaging, translation of an image to surgical margins is difficult, regularly resulting in wider resection margins than required. For soft tissue sarcomas there is currently no standard technique for image guided resections, while for bone sarcomas fluoroscopy may be used, however margins are not easily discernible during the surgical procedure. Near infra-red (NIR) fluorescence guided surgery offers an intra-operative modality through which complete tumour resection with adequate tumour-free margins may be achieved, while simultaneously minimising surgical morbidity. NIR imaging presents a potentially valuable adjunct to sarcoma surgery. Early reports indicate that it may be able to provide the surgeon with helpful information on anatomy, perfusion, lymphatic drainage, tumour margins and metastases. The use of NIR fluorochromes have also been demonstrated to be well tolerated by patients. However, prior to widespread implementation, studies related to cost-effectiveness and the development of protocols are essential. Nevertheless, NIR imaging may become ubiquitous in the future, carrying the potential to transform the surgical management of sarcoma.
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