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Dassanayaka W, Liyanaarachchi KS, Ala A, Bagwan IN. IgG4-related disease: an analysis of the clinicopathological spectrum: UK centre experience. J Clin Pathol 2023; 76:53-58. [PMID: 34413088 DOI: 10.1136/jclinpath-2021-207748] [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: 06/06/2021] [Accepted: 08/09/2021] [Indexed: 01/26/2023]
Abstract
AIM To retrospectively evaluate the characteristic clinicopathological spectrum in patients with suspicion of IgG4-related disease (IgG4RD). METHODS Winpath histology database from January 2011 to April 2018 identified all suspected IgG4RD cases wherein IgG4 immunohistochemistry was performed. The histology slides were reviewed to categorise cases into Boston criteria groups-highly suggestive of IgG4RD, probable IgG4RD and insufficient evidence. Information regarding clinical data, treatment received, follow-up and serum IgG4 levels was obtained from medical records and AllScripts Patient Administration System (APAS) clinical database. RESULTS The study included 204 patients and the most common sites of biopsy/resection were pancreas and duodenum. The most common clinical presentation was fibroinflammatory lesion or mass/lump. On histology, 54/204 (26.47%) cases showed typical storiform fibrosis, 65/204 (32.64%) had >10 IgG4+ plasma cells per high power field and only one case showed thrombophlebitis (0.49%). There were 14/204 (6.78%) cases categorised as highly suggestive of IgG4RD; 8 of these showed high serum IgG4 levels and were managed clinically as true IgG4RD. CONCLUSION Histological diagnosis of IgG4RD remains challenging, as not all characteristic features are always present especially in small biopsies. Due to the novelty of its experience, fear of over diagnosis in the context of malignancy and features overlapping with diseases of similar clinical scenario, diagnosis of IgG4RD has become more puzzling. Further multicentre clinical trials/studies are advisable.
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Affiliation(s)
- Wajira Dassanayaka
- Histopathology, Royal Surrey NHS Foundation Trust, Guildford, Surrey, UK
| | | | - Aftab Ala
- Hepatology & Gastroenterology, Royal Surrey NHS Foundation Trust, Guildford, UK.,Institute of Liver Studies, Kings College Hospital, London, UK
| | - Izhar N Bagwan
- Histopathology, Royal Surrey NHS Foundation Trust, Guildford, Surrey, UK
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Carrasco Rodríguez R, García Fontán EM, Blanco Ramos M, Magdalena Benavides LJ, Otero Lozano D, Moldes Rodriguez M, Cañizares Carretero MA. Inflammatory pseudotumor and myofibroblastic inflammatory tumor. Diagnostic criteria and prognostic differences. Cir Esp 2022; 100:329-335. [PMID: 35577280 DOI: 10.1016/j.cireng.2022.05.012] [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: 02/04/2020] [Accepted: 03/13/2021] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Inflammatory pseudotumor (IPT) and inflammatory myofibroblastic tumor (IMT) are two very rare entities that were formerly included in the same category; however, today they are considered two different diseases due to the neoplastic origin of the IMT. Our objective is to share our experience in the management of these two types of tumors that we must take into account in the differential diagnosis of pulmonary masses or nodules. METHODS Thirteen patients with a pathological diagnosis of IPT and IMT who underwent surgery between 2008 and 2019 were retrospectively studied. We recorded the pre and postoperative information of each one, as well as the survival analysis. RESULTS Of the 13 patients, 8 were men and 5 women. The mean age of presentation was 53,5 years. An atypical segmentectomy was performed in 6 patients; a lobectomy was necessary in 6 and a pneumonectomy in 1 case. In all cases a complete resection was achieved. Diagnosis was possible thanks to histology, immunohistochemical (IHQ) and fluorescent in situ hybridization (FISH) techniques determining the expression of IgG4 and the rearrangement of ALK, respectively. After a median follow up of 49 months, we didn't find any loco-regional or distant recurrence in the patients studied. CONCLUSION IPT and IMT are rare tumors with a very good prognostic. The diagnosis of both entities is based mainly on specific anatomopathological techniques. Surgery has, in most cases, both a diagnostic and therapeutic role.
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Affiliation(s)
| | | | | | | | - Daniel Otero Lozano
- Servicio de Cirugía Torácica, Hospital Álvaro Cunqueiro, Vigo, Pontevedra, Spain
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Carrasco Rodríguez R, García Fontán EM, Blanco Ramos M, Juaneda Magdalena Benavides L, Otero Lozano D, Moldes Rodriguez M, Cañizares Carretero MA. Inflammatory pseudotumor and myofibroblastic inflammatory tumor. Diagnostic criteria and prognostic differences. Cir Esp 2021; 100:S0009-739X(21)00112-3. [PMID: 33896608 DOI: 10.1016/j.ciresp.2021.03.009] [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: 02/04/2020] [Revised: 03/01/2021] [Accepted: 03/13/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Inflammatory pseudotumor (IPT) and inflammatory myofibroblastic tumor (IMT) are two very rare entities that were formerly included in the same category; however, today they are considered two different diseases due to the neoplastic origin of the IMT. Our objective is to share our experience in the management of these two types of tumors that we must take into account in the differential diagnosis of pulmonary masses or nodules. METHODS Thirteen patients with a pathological diagnosis of IPT and IMT who underwent surgery between 2008 and 2019 were retrospectively studied. We recorded the pre and postoperative information of each one, as well as the survival analysis. RESULTS Of the 13 patients, 8 were men and 5 women. The mean age of presentation was 53,5 years. An atypical segmentectomy was performed in 6 patients; a lobectomy was necessary in 6 and a pneumonectomy in 1 case. In all cases a complete resection was achieved. Diagnosis was possible thanks to histology, immunohistochemical (IHQ) and fluorescent in situ hybridization (FISH) techniques determining the expression of IgG4 and the rearrangement of ALK, respectively. After a median follow up of 49 months, we didńt find any loco-regional or distant recurrence in the patients studied. CONCLUSION IPT and IMT are rare tumors with a very good prognostic. The diagnosis of both entities is based mainly on specific anatomopathological techniques. Surgery has, in most cases, both a diagnostic and therapeutic role.
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Affiliation(s)
| | | | | | | | - Daniel Otero Lozano
- Servicio de Cirugía Torácica, Hospital Álvaro Cunqueiro, Vigo, Pontevedra, España
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Satou A, Notohara K, Zen Y, Nakamura S, Yoshino T, Okazaki K, Sato Y. Clinicopathological differential diagnosis of IgG4-related disease: A historical overview and a proposal of the criteria for excluding mimickers of IgG4-related disease. Pathol Int 2020; 70:391-402. [PMID: 32314497 DOI: 10.1111/pin.12932] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/16/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022]
Abstract
IgG4-related disease (RD) is a relatively new entity, which was first proposed in 2001. Since then, clinical and pathological characteristics of the disease have been investigated. As IgG4-RD has been studied extensively, the diagnostic criteria for IgG4-RD of each organ and the comprehensive diagnostic criteria for IgG4-RD have also been developed. However, one of the biggest challenges in the field is distinguishing between IgG4-RD and mimickers, which show overlapping features with IgG4-RD. It is now known that some non-IgG4-RDs may meet the diagnostic criteria of IgG4-RD and can be misdiagnosed as IgG4-RD. However, accurate diagnosis is crucial, as the treatments for IgG4-RD and those for other diseases that may be misdiagnosed as IgG4-RD are different. This prompted us to create and propose comprehensive exclusion criteria for IgG4-RD. In this review, we have described the comprehensive exclusion criteria for IgG4-RD, with a historical overview of the disease. These exclusion criteria were recently created by the Research Program for Intractable Disease of the Ministry of Health, Labor, and Welfare of Japan, All Japan IgG4 team, to support correct and accurate diagnosis of IgG4-RD.
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Affiliation(s)
- Akira Satou
- Department of Surgical Pathology, Aichi Medical University Hospital, Aichi, Japan.,The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan
| | - Kenji Notohara
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,Department of Anatomic Pathology, Kurashiki Central Hospital, Okayama, Japan
| | - Yoh Zen
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,Institute of Liver Studies, King's College Hospital & King's College London, London, UK
| | - Shigeo Nakamura
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Aichi, Japan
| | - Tadashi Yoshino
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,Department of Pathology, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kazuichi Okazaki
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - Yasuharu Sato
- The Research Program for Intractable Disease by Ministry of Health, Labor and Welfare, Japanese Pathology Study Group of IgG4-related Disease, Tokyo, Japan.,Department of Pathology, Okayama University Graduate School of Medicine, Okayama, Japan.,Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama, Japan
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