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Abstracts tagged "IgG4 Related Disease"

  • Abstract Number: 2529 • ACR Convergence 2025

    IgG4-Related Disease Paravertebral and Ureteropelvic Mass Presentations are Linked to Specific Disease Features

    Federica Bonaso1, Grace McMahon2, Isha Jha2, Guy Katz2, Zachary Wallace3, John Stone4 and Cory Perugino5, 1University of Brescia, ASST Spedali Civili of Brescia, Massachusetts General Hospital, Monza, Italy, 2Massachusetts General Hospital, Boston, MA, 3Massachusetts General Hospital, Newton, MA, 4Massachusetts General Hospital , Harvard Medical School, Concord, MA, 5Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Background/Purpose: IgG4-related disease (IgG4-RD) is a chronic immune-mediated disease characterized by mass-forming fibrotic lesions. The aim of this work was to characterize the overall clinical…
  • Abstract Number: 0992 • ACR Convergence 2025

    FoxP3Lo CD4+ T cells are functionally suppressive and expanded in the immune-mediated fibrotic diseases IgG4-related disease and systemic sclerosis

    Laura J. Yockey1, Ian Doyle2, Thomas Guy3, Devanshi Trivedi2, Chinmay Gadiraju4, Federica Bonaso5, Jesse Akaa2, Alison Puri6, Zachary Wallace7, Guy Katz8, Sydney Montesi8, John Stone9, Flavia Castelino8, Shiv Pillai10, Andrew Luster11, Vinay S. Mahajan12 and Cory Perugino13, 1MGH, Charlestown, MA, 2Massachusetts General Hospital (MGH - Mass General) (MGB), Boston, MA, 3Ragon Institute of MGH, MIT and Harvard/ Royal Prince Alfred Hospital Sydney, Sydney, Australia, 4Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, 5University of Brescia, ASST Spedali Civili of Brescia, Massachusetts General Hospital, Monza, Italy, 6Boston University, Brookline, MA, 7Massachusetts General Hospital, Newton, MA, 8Massachusetts General Hospital, Boston, MA, 9Massachusetts General Hospital , Harvard Medical School, Concord, MA, 10Harvard Medical School, Cambridge, MA, 11Massachusetts General Hospital, Charlestown, MA, 12Brigham and Women's Hospital, Boston, MA, 13Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Background/Purpose: The absence of regulatory T cells (Tregs) results in multiorgan autoimmunity in the context of monogenic “Tregopathies,” but their role in mediating polygenic autoimmune…
  • Abstract Number: 2528 • ACR Convergence 2025

    Broad Screening of the Human Proteome Identifies a Cassette of Six Autoantigens that Distinguishes IgG4-Related Disease

    Federica Bonaso1, Zhenrui Zhang2, Mahilan Guha3, Ian Doyle4, Jesse Akaa4, Grace McMahon5, Isha Jha5, Sydney Montesi5, Thomas Guy6, Guy Katz5, Zachary Wallace7, John Stone8, Vinay S. Mahajan9, Shiv Pillai10 and Cory Perugino11, 1University of Brescia, ASST Spedali Civili of Brescia, Massachusetts General Hospital, Monza, Italy, 2Ragon Institute of Mass General Brigham, MIT, and Harvard, Boston, 3Montgomery Blair High School, Brigham and Women’s Hospital, Boston, 4Massachusetts General Hospital (MGH - Mass General) (MGB), Boston, MA, 5Massachusetts General Hospital, Boston, MA, 6Ragon Institute of MGH, MIT and Harvard/ Royal Prince Alfred Hospital Sydney, Sydney, Australia, 7Massachusetts General Hospital, Newton, MA, 8Massachusetts General Hospital , Harvard Medical School, Concord, MA, 9Brigham and Women's Hospital, Boston, MA, 10Harvard Medical School, Cambridge, MA, 11Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Background/Purpose: IgG4-related disease (IgG4-RD) is a chronic immune-mediated disease typified by mass-forming lesions. Self-antigens driving the oligoclonal expansion of plasmablasts have previously been reported. However,…
  • Abstract Number: 0910 • ACR Convergence 2025

    Development of Four Distinct Human IgG4-Producing Mouse Models Recapitulating IgG4-Related Disease

    MIN GANG KIM1, JINA YEO2, HEA RIM KANG3, JAE HYUN MOON3, Seon Uk Kim4, SeoYoon Ban5, MI HYEON KIM6 and Eun Young Lee7, 1Seoul National University College of Medicine, Seoul, Republic of Korea, 2Division of Rheumatology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea, 3Seoul National University College of Medicine, Jongno-gu, Seoul, Republic of Korea, 4Seoul National University, Jongno-gu, Seoul, Republic of Korea, 5Department of Cancer biology, Graduate School of College of Medicine, Seoul National University, Korea, Seoul, Republic of Korea, 6Hallym university dongtan sacred heart hospital, Seocho-gu, Seoul, Republic of Korea, 7Seoul National University College of Medicine, Seoul, South Korea

    Background/Purpose: IgG4-related disease (IgG4RD) is an immune-mediated fibroinflammatory condition characterized by multi-organ involvement, elevated serum IgG4, and IgG4-positive plasma cell infiltrates that form tumor-like lesions…
  • Abstract Number: 2051 • ACR Convergence 2025

    Clinical Burden of Illness Among Patients with Immunoglobulin-G4-Related Disease in the United States

    Sushmitha Inguva1, Emma Culver2, Pallavi Rane1, Laura Moore-Schiltz3, melissa rosen4, Kristina Patterson4, Donna McMorrow3, Zulkarnain Pulungan5, Yasmin Hernandez-Barco6 and John Stone7, 1Amgen Inc., Thousand Oaks, 2John Radcliffe Hospital; University of Oxford, Oxford, United Kingdom, 3Inovalon, Bowie, MD, 4Amgen Inc., Thousand Oaks, CA, 5Inovalon, Bowie, 6Massachusetts General Hospital; Harvard Medical School, Boston, MA, 7Massachusetts General Hospital , Harvard Medical School, Concord, MA

    Background/Purpose: Immunoglobulin G4-related disease (IgG4-RD) is a multi-organ, immune-mediated condition. Timely treatment is critical, as disease flares often result in increased inflammation and organ damage.…
  • Abstract Number: 0421 • ACR Convergence 2025

    Inflammatory Orbital Diseases: Pediatric Case Series From a Tertiary Care Center

    Rasha Elrefai1, Katherine Williams2 and Hannah Bradfield3, 1Baylor College of Medicine, Houston, TX, 2Texas Children's Hospital, Houston, TX, 3Baylor College of Medicine/Texas Children's Hospital, Houston, TX

    Background/Purpose: Orbital inflammatory diseases in the pediatric population present diagnostic and therapeutic challenges due to variable clinical manifestations, limited prospective data, and lack of standardized…
  • Abstract Number: 2033 • ACR Convergence 2025

    Complement Fragments are Deposited in the Submandibular Glands in IgG4-Related Disease

    Guy Katz1, Judith Ferry1, Grace McMahon1, Isha Jha2, Claire Galand3, Fei Liu4, Shelia Violette4, Jason Campagna4, Ana Fernandes1, Cory Perugino5 and John Stone6, 1Massachusetts General Hospital, Boston, MA, 2Massachusetts General Hospital, Boston, 3Q32 Bio Inc,, Waltham, MA, 4Q32 Bio Inc, Waltham, MA, 5Massachusetts General Hospital, Harvard Medical School, Boston, MA, 6Massachusetts General Hospital , Harvard Medical School, Concord, MA

    Background/Purpose: Hypocomplementemia, defined as low serum C3 and/or C4 concentrations, is common in patients with IgG4-related disease (IgG4-RD). While this has historically been linked with…
  • Abstract Number: 0279 • ACR Convergence 2025

    Assessment of Baseline IgG4-RD Disease Characteristics and Impact Upon Safety and Efficacy of Inebilizumab: Results from the MITIGATE Study

    Yoshiya Tanaka1, Emma Culver2, Arezou Khosroshahi3, Wen Zhang4, Kazuichi Okazaki5, Matthias Lohr6, nicolas schleinitz7, Xinxin Dong8, melissa rosen9, Sue Cheng8, Daniel Cimbora8 and John Stone10, 1University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, 2John Radcliffe Hospital; University of Oxford, Oxford, United Kingdom, 3Emory University, Atlanta, GA, 4Peking Union Medical College Hospital, Dong Cheng Qu, China (People's Republic), 5Kansai Medical University Kori Hospital, Osaka, Japan, 6Karolinska Institutet, Stockholm, Sweden, 7Aix Marseille university, AP-HM, Marseille, France, 8Amgen, Thousand Oaks, CA, 9Amgen Inc., Thousand Oaks, CA, 10Massachusetts General Hospital , Harvard Medical School, Concord, MA

    Background/Purpose: IgG4-related disease (IgG4-RD) is a progressive, systemic, fibroinflammatory disease characterized by unpredictable and recurring flares, leading to organ damage and decreased quality of life.…
  • Abstract Number: 2020 • ACR Convergence 2025

    Inebilizumab Efficacy and Safety in Patients with Common, Urgent, and Fibrotic Organ Manifestations of IgG4-RD: Subgroup Analyses from the MITIGATE Trial

    Arezou Khosroshahi1, Emma Culver2, Wen Zhang3, Kazuichi Okazaki4, Yoshiya Tanaka5, Matthias Lohr6, nicolas schleinitz7, Xinxin Dong8, Sue Cheng8, Daniel Cimbora8 and John Stone9, 1Emory University, Atlanta, GA, 2John Radcliffe Hospital; University of Oxford, Oxford, United Kingdom, 3Peking Union Medical College Hospital, Dong Cheng Qu, China (People's Republic), 4Kansai Medical University Kori Hospital, Osaka, Japan, 5University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, 6Karolinska Institutet, Stockholm, Sweden, 7Aix Marseille university, AP-HM, Marseille, France, 8Amgen, Thousand Oaks, CA, 9Massachusetts General Hospital , Harvard Medical School, Concord, MA

    Background/Purpose: IgG4-related disease (IgG4-RD) is a progressive, systemic, fibroinflammatory disease characterized by unpredictable and recurring flares, leading to organ damage and decreased quality of life.…
  • Abstract Number: 0271 • ACR Convergence 2025

    Clinical Presentation of Igg4-Related Disease. Multicenter Study and Literature Review

    Rafael Gálvez Sánchez1, Fernando Lopez Gutierrez2, Javier Loricera3, Pablo Martínez Calabuig4, Jorge Juan Fragío Gil5, Roxana González Mazario6, Cristina Hormigos Martin7, DALIFER FREITES8, Maria Rodriguez Laguna9, Patricia Moya Albarado10, Marta López i Gómez11, Hector Corominas12, Maite Silva-Diaz13, GUILLERMO GONZALEZ ARRIBAS14, Angel Garcia-Aparicio15, Judit Font-Urgelles16, Ivette Casafont-Solé16, elisabeth Castañeda17, Carolina Merino18, Raquel Zas19, Juan Molina-Collada20, Sergio Rodríguez Montero21, Rafael B. Melero-González22, Eva Galíndez Agirregoikoa23, Andrea Hernández24, Lucia Pantoja25, Ignacio Braña26, Vega Jovaní27, Elia Valls-Pascual28, Natalia Mena Vázquez29, Adela Gallego30, Noelia Cabaleiro Raña31, Raul Veroz32, Mariano Andrés Collado33, Santos Castañeda34 and Ricardo Blanco35, 1Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, 2Hospital Universitario Marqués de Valdecilla, Immunopathology Group -IDIVAL, Reumatología, Santander, Santander, Spain, 3Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, 4Hospital General Universitario de Valencia, Spain/ Uversidad Catolica de Valencia San Vicente Martir, Valencia, Spain, Ontinyent, Spain, 5Hospital General Universitario, Valencia, Spain, 6Hospital General de Valencia, Valencia, Spain, 7Hospital Clínico San Carlos, Madrid, Spain, 8Rheumatology Service, San Carlos Clinical Hospital, Madrid, Madrid, Spain, 9Hospital Clinico San Carlos, Madrid, Spain, 10Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, 11Hospital Universitario de Araba, Vitoria, Pais Vasco, Spain, 12Hospital de Sant Pau, Barcelona, Spain, 13Complexo Hospitalario Universitario A Coruña, A Coruña, Galicia, Spain, 14Facultativo especialista, PALMA DE MALLORCA, Galicia, Spain, 15Hospital Universitario de Toledo, Toledo, Spain, 16Hospital Universitari Germans Trias i Pujol, Badalona, Spain, 17Hospital Universitario Infanta Sofía, Madrid, Madrid, Spain, 18Rheumatology department. Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda (Madrid), Madrid, Spain, 19Hospital Universitario Doce de Octubre, Madrid, Spain, 20Department of Rheumatology, Hospital General Universitario Gregorio Marañón. Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain, Madrid, Spain, 21Hospital Universitario de Valme, Sevilla, Andalucia, Spain, 22COMPLEXO HOSPITALARIO UNIVERSITARIO DE OURENSE, O Carballino, Spain, 23BASURTO UNIVERSITY HOSPITAL, BILBAO, Spain, 24Hospital Universitario de Gran Canaria Dr Negrin, Palmas de Gran Canaria, Canarias, Spain, 25Complejo Hospitalario Segovia, Segovia, Spain, 26Hospital Universitario Central de Asturias, Oviedo, Spain, 27Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Comunidad Valenciana, Spain, 28Hospital General de Valencia, Valencia, Comunidad Valenciana, Spain, 29Hospital Regional Universitario de Malaga, Malaga, Spain, Málaga, Spain, 30Complejo Hospitalario don Benito Villanueva, Badajoz, Spain, 31Hospital Universitario Montecelo, Rheumatology, Pontevedra, Galicia, Spain, 32Hospital de Merida, Merida, Extremadura, Spain, 33Hospital General Universitario de Alicante, Madrid, Comunidad Valenciana, Spain, 34Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Madrid, Spain, 35Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain

    Background/Purpose: IgG4-related disease (IgG4-RD) is a systemic fibroinflammatory entity that can involve almost every organ, with characteristic histological features. Its pathogenesis remains poorly understood, clinical…
  • Abstract Number: 2019 • ACR Convergence 2025

    Incidence of Coronavirus Disease 2019 in Participants with IgG4-Related Disease Treated with Inebilizumab in the MITIGATE Study

    Arezou Khosroshahi1, Emma Culver2, Wen Zhang3, Kazuichi Okazaki4, Yoshiya Tanaka5, Matthias Lohr6, nicolas schleinitz7, Xinxin Dong8, Sue Cheng8, Daniel Cimbora8 and John Stone9, 1Emory University, Atlanta, GA, 2John Radcliffe Hospital; University of Oxford, Oxford, United Kingdom, 3Peking Union Medical College Hospital, Dong Cheng Qu, China (People's Republic), 4Kansai Medical University Kori Hospital, Osaka, Japan, 5University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, 6Karolinska Institutet, Stockholm, Sweden, 7Aix Marseille university, AP-HM, Marseille, France, 8Amgen, Thousand Oaks, CA, 9Massachusetts General Hospital , Harvard Medical School, Concord, MA

    Background/Purpose: The potential of B-cell-depleting therapies to diminish humoral responses is recognized, but whether this leads to an increased risk of Coronavirus Disease 2019 (COVID-19)…
  • Abstract Number: 0270 • ACR Convergence 2025

    Diagnostic Challenge of IgG4-related Disease: Comparison Between ACR/EULAR, Umehara, and Okazaki Criteria

    Rafael Gálvez Sánchez1, Ivan Ferraz Amaro2, Fernando Lopez Gutierrez3, Javier Loricera4, Pablo Martínez Calabuig5, Jorge Juan Fragío Gil6, Roxana González Mazarí7, Cristina Hormigos Martín8, DALIFER FREITES9, Maria Rodríguez Laguna8, Patricia Moya Alvarado10, Marta López I Gómez11, Hector Corominas Macia10, Maite Silva Díaz12, Guillermo González Arribas12, Angel García Aparicio13, Judit Font-Urgelles14, Ivette Casafont Solé15, Elisabet Castaneda16, Carolina Merino Argumánez17, Raquel Zas Vaamonde18, Juan Molina Collada19, Sergio Rodríguez Montero20, Rafael Melero Gonzalez21, Eva Galíndez Agirregoikoa22, Andrea Hernández23, Lucia Pantoja Zarza24, Ignacio Braña Abascal25, Vega Jovaní26, Elia Valls Pascual27, Natalia Mena Vázquez28, ADELA MARIA GALLEGO FLORES29, Noelia Cabaleiro Raña30, Raúl Veroz González31, Mariano Andrés32, Santos Castañeda Sainz33 and Ricardo Blanco34, 1Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, 2Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain, 3Hospital Universitario Marqués de Valdecilla, Immunopathology Group -IDIVAL, Reumatología, Santander, Santander, Spain, 4Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, 5Hospital General Universitario de Valencia, Spain/ Uversidad Catolica de Valencia San Vicente Martir, Valencia, Spain, Ontinyent, Spain, 6Hospital General Universitario, Valencia, Spain, 7Hospital General Universitario de Valencia, Reumatología, Valencia, Valencia, Spain, 8Hospital Clínico San Carlos, Reumatología, Madrid, Madrid, Spain, 9Rheumatology Service, San Carlos Clinical Hospital, Madrid, Madrid, Spain, 10Hospital de Sant Pau, Reumatología, Barcelona, Barcelona, Spain, 11Hospital Universitario de Araba, Reumatología, Vitoria,, Vitoria, Spain, 12Complejo Hospitalario Universitario de A Coruña, Reumatología, A Coruña, Spain, 13Hospital Universitario de Toledo, Reumatología, Toledo, Toledo, Spain, 14Hospital Universitari Germans Trias i Pujol, Badalona, Spain, 15Hospital German Trias i Pujol, Reumatología, Badalona, Badalona, Spain, 16Hospital Universitario Infanta Sofía, Reumatología, Madrid, Madrid, Spain, 17Hospital Universitario Puerta del Hierro, Reumatología, Madrid, Madrid, Spain, 18Hospital Universitario 12 de Octubre, Reumatología, Madrid, Madrid, Spain, 19Hospital General Universitario Gregorio Marañón, Reumatología, Madrid, Madrid, Spain, 20Hospital Universitario de Valme, Reumatología, Sevilla, Sevilla, Spain, 21Hospital Alvaro Cunqueiro, Reumatología, Vigo, Vigo, Spain, 22BASURTO UNIVERSITY HOSPITAL, BILBAO, Spain, 23Hospital Universitario de Gran Canaria Dr Negrin, Reumatología, Palmas de Gran Canaria, Gran Canaria, Spain, 24Hospital General de Segovia, Reumatología, Segovia, Segovia, Spain, 25Hospital Universitario Central de Asturias, Reumatología, Oviedo, Oviedo, Spain, 26Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Comunidad Valenciana, Spain, 27Hospital General de Valencia, Reumatología, Valencia, Valencia, Spain, 28Hospital Regional Universitario de Málaga, Reumatología, Málaga, Malaga, Spain, 29Complejo Hospitalario don Benito Villanueva, Reumatología, Badajoz, Badajoz, Extremadura, Spain, 30Hospital Universitario Montecelo, Reumatología, Pontevedra, Pontevedra, Spain, 31Hospital de Mérida, Reumatología, Mérida, Mérida, Spain, 32Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Spain, 33Hospital Universitario La Princesa, Reumatología, Madrid Grupo de cooperación nacional de enfermedad relacionada con IgG4: Blanca García Magallón (Hospital Universitario Puerta del Hierro), Maite Odriozola Gil (Hospital Universitario de Valme), Cristina Arciniega (Hospital de Mérida), Maria Lourdes Mateo Soria (Hospital German Trias i Pujol), Santiago Muñoz (Hospital Universitario Infanta Sofía), Iñigo Jesús Rua Figueroa, (Hospital Universitario de Gran Canaria Dr Negrin), Sabela Fernández Aguado, (Hospital de Montecelo)., Madrid, Spain, 34Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain

    Background/Purpose: IgG4-related disease (IgG4-RD) is a rare immune-mediated condition characterized by fibro-sclerosing inflammation, elevated serum and tissue IgG4 levels, and heterogeneous clinical manifestations. Several classification…
  • Abstract Number: 2015 • ACR Convergence 2025

    Clinical features of IgG4-related disease – a single centre experience

    Alojzija Hocevar1, Ales Groselj2, gregor hawlina2, Matic Kozelj2, Andrej Skoberne2, joze Pizem3 and Vesna Jurcic3, 1University Medical Center Ljubljana, LJUBLJANA, Slovenia, 2UMC Ljubljana, Ljubljana, Slovenia, 3Medical Faculty, Institute of Pathology, Ljubljana, Slovenia

    Background/Purpose: IgG4-related diseases (IgG4-RD) is rare and unique fibroinflammatory disorder. The aim of our study was to study the characteristics of IgG4-RD cohort diagnosed and…
  • Abstract Number: 0239 • ACR Convergence 2025

    Safety of Rilzabrutinib, a BTK Inhibitor, in Adult Patients with IgG4-related disease (IgG4-RD) in a 52-week Phase 2 Open-label Study

    Alireza Meysami1, Mollie Carruthers2, John Stone3, Fernando Martinez-Valle4, nicolas schleinitz5, Daniela Ghetie6, Robert Spiera7, Jeea Choi8, Leda Mannent9 and Owen Hagino8, 1Henry Ford Health, Detroit, MI, 2Vancouver General Hospital, Vancouver, BC, Canada, 3Massachusetts General Hospital , Harvard Medical School, Concord, MA, 4Vall d’Hebron Hospital, Barcelona, Spain, 5Aix Marseille university, AP-HM, Marseille, France, 6Oregon Health and Science University, Portland, OR, 7Scleroderma, Vasculitis, and Myositis Center, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, 8Sanofi, Morristown, NJ, 9Sanofi, Gentilly, France

    Background/Purpose: IgG4- related disease (IgG4-RD) is a chronic, progressive, immune-mediated fibrotic disease with limited treatment options. Rilzabrutinib is an orally available, reversible, inhibitor of Bruton's…
  • Abstract Number: 1773 • ACR Convergence 2025

    Redefining disease activity assessment in IgG4-Related Disease: The role of classical and novel biomarkers

    Marta López1, rafeal Benito-Melero2, Laura Martinez-Martinez3, Hye Sang-Park4, sara Calleja3, Helena Codes Mendez5, Mar Concepción Martín3, Berta Magallares3, Ivan Castellví6, Ana Laiz5, Cesar Diaz3 and Hector Corominas7, 1Complex Hospitalari Universitari Moisés Broggi, Barcelona, Spain, 2MD, barcelona, Spain, 3Hospital Santa Creu i Sant Pau, Barcelona, Spain, 4Hospital Santa Creu i Sant Pau, Barcelona, Catalonia, Spain, 5Sant Pau Hospital, Barcelona, Spain, 6Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, barcelona, Spain, 7Hospital de Sant Pau, Barcelona, Spain

    Background/Purpose: IgG4-related disease (IgG4-RD) is a systemic fibroinflammatory disorder characterized by elevated serum IgG4 levels and tissue infiltration by IgG4-positive plasma cells. Despite advances in…
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