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Rotondi M, Carbone A, Coperchini F, Fonte R, Chiovato L. DIAGNOSIS OF ENDOCRINE DISEASE: IgG4-related thyroid autoimmune disease. Eur J Endocrinol 2019; 180:R175-R183. [PMID: 30889549 DOI: 10.1530/eje-18-1024] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 03/18/2019] [Indexed: 12/11/2022]
Abstract
IgG4-related disease (IgG4-RD) is fibro-inflammatory, immune-mediated, systemic disease recognized as a defined clinical condition only in 2001. The prevalence of IgG4-RD is 6/100 000, but it is likely to be underestimated due to insufficient awareness of the disease. The diagnostic approach is complex because of the heterogeneity of clinical presentation and because of rather variable diagnostic criteria. Indeed, high concentrations of IgG4 in tissue and serum are not a reliable diagnostic marker. The spectrum of IgG4-RD also includes well-known thyroid diseases including Riedel's thyroiditis, Hashimoto's thyroiditis and its fibrotic variant, Graves' disease and Graves' orbitopathy. Results from clinical studies indicate that a small subset of patients with the above-mentioned thyroid conditions present some features suggestive for IgG4-RD. However, according to more recent views, the use of the term thyroid disease with an elevation of IgG4 rather than IgG4-related thyroid diseases would appear more appropriate. Nevertheless, the occurrence of high IgG4 levels in patients with thyroid disease is relevant due to peculiarities of their clinical course.
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Affiliation(s)
- Mario Rotondi
- Unit of Internal Medicine and Endocrinology, ICS Maugeri I.R.C.C.S., University of Pavia, Pavia, Italy
| | - Andrea Carbone
- Unit of Internal Medicine and Endocrinology, ICS Maugeri I.R.C.C.S., University of Pavia, Pavia, Italy
| | - Francesca Coperchini
- Unit of Internal Medicine and Endocrinology, ICS Maugeri I.R.C.C.S., University of Pavia, Pavia, Italy
| | - Rodolfo Fonte
- Unit of Internal Medicine and Endocrinology, ICS Maugeri I.R.C.C.S., University of Pavia, Pavia, Italy
| | - Luca Chiovato
- Unit of Internal Medicine and Endocrinology, ICS Maugeri I.R.C.C.S., University of Pavia, Pavia, Italy
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Mammen SV, Gordon MB. SUCCESSFUL USE OF RITUXIMAB IN A CASE OF RIEDEL THYROIDITIS RESISTANT TO TREATMENT WITH PREDNISONE AND TAMOXIFEN. AACE Clin Case Rep 2019; 5:e218-e221. [PMID: 31967038 DOI: 10.4158/accr-2018-0352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/16/2019] [Indexed: 01/13/2023] Open
Abstract
Objective Riedel thyroiditis (RT) is a rare disorder with high morbidity and limited treatment options. We describe a case resistant to conventional treatment with corticosteroids and tamoxifen, which subsequently responded to rituximab. Methods Surgical pathology with hematoxylin and eosin staining was initially performed to confirm diagnosis, followed by IgG4 immunostaining and IgG4 serology in the setting of refractory RT, given its association with IgG4-related disease. Response to treatment was monitored subjectively as well as objectively with serial computed tomography scans. Results A 51-year-old female with history of Hashimoto thyroiditis presented with compressive neck symptoms. Imaging was suggestive of a multinodular goiter with a large right thyroid nodule. Total thyroidectomy was planned, however intraoperative findings of a densely adherent thyroid with disruption of resection planes led to early termination of surgery. Biopsies obtained during surgery showed benign thyroid tissue with chronic lymphocytic thyroiditis, dense fibrous scar tissue, and benign lymph nodes, confirming the diagnosis of RT. The patient had minimal symptomatic improvement with chronic prednisone as high as 60 mg daily with tamoxifen at 30 mg twice a day. She subsequently received 4 doses of intravenous rituximab at 375 mg/m2 every 3 weeks, resulting in significant subjective improvement of her compressive symptoms as well as an objective decrease in size of the thyroid mass as seen on a subsequent computed tomography scan. Conclusion Evidence regarding etiology and management of RT is limited. We present a case of refractory RT treated with rituximab with resultant symptomatic improvement, thus providing further evidence for use of rituximab in resistant cases.
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Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a recently established systemic disease that is characteristically associated with elevated serum immunoglobulin G4 (IgG4) levels and believed to be caused by autoimmune mechanisms. The clinical features of IgG4-RD include (i) systemic distribution, (ii) imaging findings of swelling, nodules, and/or wall thickening, (iii) high serum IgG4 levels, (iv) abundant IgG4-bearing plasma cell infiltration and fibrosis in affected organs, (v) a favorable response to corticosteroid therapy, and (vi) coexistence with other IgG4-RD manifestations simultaneously or in a metachronous fashion. The concept of IgG4-RD was established based on the culmination of specific discoveries. Specifically, a close association between autoimmune pancreatitis (AIP) and high serum IgG4 levels, massive IgG4-bearing plasma cell infiltration in pancreatic tissues affected by AIP, and systemic other organ involvements in AIP with similar IgG4-bearing plasma cell features opened the gateway from AIP to IgG4-RD. The systemic distribution of IgG4-RD seems to be capable of affecting every organ, causing well-established members including AIP, lacrimal and salivary gland lesions such as Mikulicz’s disease, respiratory diseases, sclerosing cholangitis, kidney diseases, and retroperitoneal fibrosis. IgG4-RD has been diagnosed worldwide, and international collaboration efforts on the disease have led to consensus publications on its nomenclature, pathology findings, and management approach. The algorithms developed for the comprehensive diagnostic criteria for IgG4-RD have remarkably increased detection sensitivity. Oral glucocorticoids are the first-line agents for remission induction, and certain patients with high disease activity may benefit from maintenance therapy afterwards. Originally, IgG4-RD had been considered reversible and to have a good prognosis; however, long-term afflictions sometimes result in transition to advanced-stage conditions with dysfunction and/or complicating malignancy. The immunological abnormalities in IgG4-RD have been reported in both innate and adaptive immune systems; however, it remains unclear whether IgG4 has a pathogenic role or a protective one in disease onset and progression.
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Affiliation(s)
- Shigeyuki Kawa
- Department of Internal Medicine, Matsumoto Dental University, Shiojiri, Japan
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Abstract
PURPOSE OF REVIEW To summarize current evidence regarding the pathophysiology, diagnostic criteria, and management of IgG4 disease in the head and neck. RECENT FINDINGS The anti-CD20 antibody, rituximab is being used increasingly as a primary treatment modality in cases with a definitive diagnosis. Despite the favorable prognosis, it is now recognized that the incidence of cancer development within 3 years of diagnosis is higher than that of the general population. SUMMARY IgG4-related disease is a sclerosing, chronic inflammatory disease, that is benign, and usually occurs in middle-aged to elderly individuals. Definitive diagnosis of IgG4-related disease requires radiological confirmation of enlargement of the affected organ, elevated serum IgG4 levels, and characteristic histopathological findings. Treatment is primarily with systemic corticosteroids or the monoclonal anti-CD20 antibody rituximab, surgical excision, or a combination of treatment modalities. Prognosis is good with complete remission in up to 90% of patients.
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Affiliation(s)
- James Johnston
- Department of Surgery, University of Auckland, Auckland, New Zealand
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55
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Jeffery DT, Kelly HR. IgG4-Related Disease in the Head and Neck. Neuroradiology 2019. [DOI: 10.1016/b978-0-323-44549-8.00040-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rzepecka A, Babińska A, Sworczak K. IgG4-related disease in endocrine practice. Arch Med Sci 2019; 15:55-64. [PMID: 30697253 PMCID: PMC6348348 DOI: 10.5114/aoms.2017.70889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/28/2017] [Indexed: 12/24/2022] Open
Abstract
IgG4-related disease is a set of symptoms resulting from a chronic, usually multiple organ inflammatory condition which affects various organs. It consists of lymphoplasmacytic infiltrations with attendant fibrosis and deep vein thrombosis. Frequently observed tissue lesions are accompanied by elevated IgG4 levels in serum. The etiopathogenesis of the lesions is of multifactor character and the clinical manifestation of the disease is highly diverse. The diagnostic process is based on the patient's medical history, clinical examination and additional tests, including a histopathological examination of the infected organ's tissues. Almost forty different locations of the disease have been reported, including disorders of the endocrine system. IgG4-related endocrinopathies are quite rare. However, it is likely that the diagnosis is under-reported due to lack of awareness of this clinical entity. Despite increasing interest in the subject, there are not enough reliable studies evaluating the link between IgG4-RD and endocrine disorders.
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Affiliation(s)
- Agata Rzepecka
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Anna Babińska
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Krzysztof Sworczak
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
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57
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Touzani F, Pozdzik A. New insights into immune cells cross-talk during IgG4-related disease. Clin Immunol 2018; 198:1-10. [PMID: 30419354 DOI: 10.1016/j.clim.2018.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/25/2018] [Accepted: 11/09/2018] [Indexed: 12/24/2022]
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a newly acknowledged entity, characterized by an immune-mediated fibro-inflammatory process affecting virtually all organs, with infiltration of IgG4+ bearing plasma cells. Until today the pathogenesis of IgG4-RD remains unknown. Treatment with anti-CD20 monoclonal antibodies efficiently induced remission and attenuated the secretory phenotype of myofibroblasts responsible of uncontrolled collagen deposition. This supports the pathogenic role of the adaptive immunity, particularly B cell compartment and B cell/T cell interaction. Latest studies have also highlighted the importance of innate immune system that has been underestimated before and the key role of a specific T cell subset, T follicular helper cells that are involved in IgG4-class-switching and plasmablast differentiation. In this review, we aim to review the most recent knowledge of innate immunity, T and B cells involvement in IgG4-RD, and introduce tertiary lymphoid organs (TLO) as a potential marker of relapse in this condition.
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Affiliation(s)
- Fahd Touzani
- Internal medicine department, Hospital Brugmann, Brussels, Belgium; Nephrology and dialysis clinic, Hospital Brugmann, Brussels, Belgium.
| | - Agnieszka Pozdzik
- Nephrology and dialysis clinic, Hospital Brugmann, Brussels, Belgium; Faculty of Medicine, Université Libre de Bruxelles (ULB), Brussels, Belgium
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58
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Nagpal SJS, Sharma A, Chari ST. Autoimmune Pancreatitis. Am J Gastroenterol 2018; 113:1301. [PMID: 29910463 DOI: 10.1038/s41395-018-0146-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/04/2018] [Indexed: 12/11/2022]
Abstract
Over the course of the last 2 decades our knowledge of autoimmune pancreatitis has increased exponentially. In this review, we summarize the clinical presentation, diagnosis and treatment of AIP, to better allow general gastroenterologists and primary care providers to consider AIP as a as a rare but important cause of painless obstructive jaundice and recurrent acute pancreatitis. While steroids remain the mainstay of first line therapy, a number of patients with type 1 AIP require immunomodulators or rituximab to maintain remission; recommendations on the management of relapses continue to evolve.
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Affiliation(s)
| | - Ayush Sharma
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Suresh T Chari
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
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59
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Wuesthoff C, Allende A, Patel N. IgG4 disease of the ear: Report and review. SAGE Open Med Case Rep 2018; 6:2050313X18791428. [PMID: 30116527 PMCID: PMC6088471 DOI: 10.1177/2050313x18791428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 07/05/2018] [Indexed: 12/24/2022] Open
Abstract
In recent years, an immune-mediated disorder involving IgG4 has been described, which targets multiple organs and explains a number of disorders previously regarded as “idiopathic” or of unknown origin. Furthermore, the discovery of IgG4-related disease (IgG4-RD) has placed a number of pathologies within its spectrum, linking symptoms and conditions formerly considered isolated. Reports of the manifestations of IgG4-RD in the head and neck are scarce. Otological manifestations have been reported, but only a handful of cases are available in the literature. This is the first report of recalcitrant serous otitis media secondary to IgG4-RD, confirmed by immunohistopathology. A case of IgG4-RD of the middle ear is presented, manifesting itself as recalcitrant serous otitis media. The case is presented from an otolaryngological and histopathological perspective and briefly reviews this rare disorder. The importance of the awareness of IgG4-RD resides mainly in the fact that it is a treatable condition. This can potentially improve the quality of life of a number of patients, some of whom may not have had a clear diagnosis. A favorable response to glucocorticoids has been reported. In cases of persistent symptoms, immunosuppressive therapy has been used with success.
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Affiliation(s)
- Carolina Wuesthoff
- Deafness Research, Kolling Institute of Medical Research and Department of Otolaryngology, Head and Neck Surgery, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Alexandra Allende
- Department of Histopathology, Douglass Hanly Moir Pathology, Sydney, NSW, Australia.,Department of Clinical Medicine, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
| | - Nirmal Patel
- Deafness Research, Kolling Institute of Medical Research and Department of Otolaryngology, Head and Neck Surgery, Royal North Shore Hospital, Sydney, NSW, Australia.,Discipline of Surgery, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia.,Department of ORL-Head and Neck Surgery, Macquarie University, Sydney, NSW, Australia
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60
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Frank SJ, Koenigsberg T, Gutman D, Koenigsberg M. Applications of 3-Dimensional Ultrasonography in the Neck, Excluding the Thyroid. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2018; 37:1791-1806. [PMID: 29288583 DOI: 10.1002/jum.14514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/27/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
Ultrasonography (US) of the neck is an accepted, useful imaging modality for many applications beyond its usefulness in thyroid disease. Two-dimensional US has been effectively used for evaluation of many types of neck conditions, and now, 3-dimensional US can be added to the imaging armamentaria. Three-dimensional US is useful in the evaluation of cervical lymph nodes, recurrent/residual thyroid neoplasia, parathyroid glands, parotid and submandibular glands, as well as thyroglossal duct cysts and other assorted palpable and visible abnormalities because of its unique capabilities, including multiplanar reconstruction, accessibility of the coronal view, volume calculation, and regularly spaced incremental slice evaluation.
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Affiliation(s)
- Susan J Frank
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Tova Koenigsberg
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
| | - David Gutman
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Mordecai Koenigsberg
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA
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61
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Bledsoe JR, Della-Torre E, Rovati L, Deshpande V. IgG4-related disease: review of the histopathologic features, differential diagnosis, and therapeutic approach. APMIS 2018; 126:459-476. [PMID: 29924455 DOI: 10.1111/apm.12845] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/20/2018] [Indexed: 02/06/2023]
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is an uncommon disorder that demonstrates characteristic clinicopathologic features including sclerosing lesions with storiform fibrosis, increased IgG4+ plasma cells with an increased IgG4+/IgG+ plasma cell ratio, obliterative phlebitis, and often an increased serum IgG4 level. This review summarizes the characteristic histopathologic and clinical features of IgG4-RD with detailed discussion of the histopathologic characteristics of the most commonly involved anatomic sites. We also present recent advances in our understanding of the pathophysiologic mechanisms of IgG4-RD and discuss updates on the treatment, prognosis, and outcomes of this rare disease, including discussion of the possible association between IgG4-RD and malignancy.
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Affiliation(s)
- Jacob R Bledsoe
- Department of Pathology, UMass Memorial Medical Center, University of Massachusetts, Worcester, MA, USA
| | - Emanuel Della-Torre
- Unit of Immunology, Rheumatology, Allergy, and Rare Diseases (UnIRAR), Università Vita-Salute San Raffaele - San Raffaele Scientific Institute, Milan, Italy.,Ragon Institute of MGH, MIT, and Harvard University, Cambridge, MA, USA
| | - Lucrezia Rovati
- Unit of Immunology, Rheumatology, Allergy, and Rare Diseases (UnIRAR), Università Vita-Salute San Raffaele - San Raffaele Scientific Institute, Milan, Italy.,Ragon Institute of MGH, MIT, and Harvard University, Cambridge, MA, USA
| | - Vikram Deshpande
- The James Homer Wright Pathology Laboratories of the Massachusetts General Hospital, Boston, MA, USA
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62
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Abstract
Immunoglobulin G4-related disease is a fibroinflammatory systemic disease that is characterized by focal or diffuse organ infiltration by immunoglobulin G4-bearing plasma cells. Immunoglobulin G4-related disease may affect any organ, and a high index of suspicion is necessary for early detection to avoid irreversible fibrosis, organ dysfunction, and death. Tumor-forming lesions are common radiological features of immunoglobulin G4-related disease that need to be differentiated from malignancies. The diagnostic approach requires the integration of clinical, biochemical, and radiographic manifestations with classic histopathologic features, which remain crucial to diagnosis. The histology of immunoglobulin G4-related disease is determined by a dense lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis in the presence of increased immunoglobulin G4-positve plasma cells. Although immunoglobulin G4-related disease forms a distinct, clinically independent disease category, many questions and problems remain unanswered, especially on its pathogenesis and the role of immunoglobulin G4. Advances in the understanding of immunoglobulin G4-related disease are likely to change the diagnostic approach in the future and create potential targets for therapeutic purposes. Here we describe the concept of immunoglobulin G4-related disease and the most recent knowledge in the clinico-pathological characteristics on this emerging disease. This study can guide clinicians in early diagnosis and prevent unnecessary surgical resections.
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Affiliation(s)
| | | | - Metin Özdemirli
- Department of Pathology, Medstar Georgetown University Hospital, Washington, USA
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63
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Zhao Z, Lee YJ, Zheng S, Khor LY, Lim KH. IgG4-Related Disease of the Thyroid Gland Requiring Emergent Total Thyroidectomy: A Case Report. Head Neck Pathol 2018; 13:523-527. [PMID: 29855801 PMCID: PMC6684687 DOI: 10.1007/s12105-018-0940-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/29/2018] [Indexed: 12/14/2022]
Abstract
IgG4-related disease of the thyroid gland is a recently recognized subtype of thyroiditis, often with rapid progression requiring surgical treatment. It is considered as a spectrum of disease varying from early IgG4-related Hashimoto's thyroiditis (HT) pattern to late fibrosing HT or Riedel's thyroiditis patterns. Here, we report a 47-year-old Malay woman presenting with progressively painless neck swelling over 3 years and subclinical hypothyroidism. Computed tomography (CT) scan revealed diffuse thyroid enlargement (up to 13 cm) with retrosternal extension and without regional lymphadenopathy. Fine needle aspiration of the thyroid showed a limited number of follicular epithelial cell groups with widespread Hurthle cell change and scanty background colloid, but no evidence of lymphocytosis. The cytologic features fell into the category of 'atypia of undetermined significance'. Subsequently, the patient developed hypercapnic respiratory failure secondary to extrinsic upper airway compression by the thyroid mass and underwent emergent total thyroidectomy. Histology of the thyroid showed diffuse dense lymphoplasmacytic infiltrate and fibrosis. Follicular cells exhibited reactive nuclear features and some Hurthle cell change. IgG4+ plasma cells were over 40/high power field while overall IgG4/IgG ratio was above 50%. The overall features suggest the diagnosis of IgG4-related disease of the thyroid gland in the form of IgG4-related HT. Post-surgery, the patient was found to have markedly elevated serum IgG4 concentration but PET/CT did not show significant increased fludeoxyglucose uptake in other areas. Her recovery was complicated by a ventilator-associated pneumonia with empyema, limiting early use of corticosteroids for treatment of IgG4-related disease.
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Affiliation(s)
- Zitong Zhao
- Division of Pathology, Department of Anatomical Pathology, Singapore General Hospital, Singapore, Singapore
| | - Yu Jin Lee
- Department of Internal Medicine, Singapore General Hospital, Singapore, Singapore
| | - Shuwei Zheng
- Department of Infectious Diseases, Singapore General Hospital, Singapore, Singapore
| | - Li Yan Khor
- Division of Pathology, Department of Anatomical Pathology, Singapore General Hospital, Singapore, Singapore
| | - Kok Hing Lim
- Division of Pathology, Department of Anatomical Pathology, Singapore General Hospital, Singapore, Singapore
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Shimizuguchi R, Kamisawa T, Endo Y, Kikuyama M, Kuruma S, Chiba K, Tabata T, Koizumi S. Hypothyroidism in patients with autoimmune pancreatitis. World J Gastrointest Pharmacol Ther 2018; 9:16-21. [PMID: 29736303 PMCID: PMC5937026 DOI: 10.4292/wjgpt.v9.i2.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 01/30/2018] [Accepted: 03/07/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To examine thyroid function and clinical features of hypothyroidism in autoimmune pancreatitis (AIP) patients.
METHODS We examined thyroid function in 77 patients with type 1 AIP (50 males, 27 females; median age 68 years, range 33-85) diagnosed according to the Japanese diagnostic criteria for AIP 2011. We compared clinical and serological findings between patients with and without various categories of hypothyroidism. The change in hypothyroidism after steroid therapy was also examined.
RESULTS Eight patients (10%) had hypothyroidism of 6 patients had subclinical hypothyroidism with a normal serum free thyroxine (FT4) and high thyroid stimulating hormone (TSH) level, and 2 patients had central hypothyroidism with low serum free triiodothyronine (FT3), FT4 and TSH levels. A significant goiter of the thyroid was not observed in any patient. There were no significant differences in age; male to female ratio; serum concentrations of IgG and IgG4-related disease (IgG4-RD); presence of anti-thyroglobulin antibody, antinuclear antigen or rheumatoid factor; or presence of extrapancreatic lesions between the 6 patients with subclinical hypothyroidism and patients with euthyroidism. After steroid therapy, both subclinical and central hypothyroidism improved with improvement of the AIP.
CONCLUSION Hypothyroidism was observed in 8 (10%) of 77 AIP patients and was subclinical in 6 patients and central in 2 patients. Further studies are necessary to clarify whether this subclinical hypothyroidism is another manifestation of IgG4-RD.
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Affiliation(s)
- Ryoko Shimizuguchi
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Terumi Kamisawa
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Yuka Endo
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Masataka Kikuyama
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Sawako Kuruma
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Kazuro Chiba
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Taku Tabata
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
| | - Satomi Koizumi
- Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo 113-8677, Japan
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65
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Deng H, Zhao S, Yue Y, Liu Y, Xu Y, Qian J, Ma X, Gao P, Yao X, Jiang X, Xu X, Jing Z, Wang Y, Pan L, Xue X. IgG4-related disease of pulmonary artery causing pulmonary hypertension. Medicine (Baltimore) 2018; 97:e10698. [PMID: 29768335 PMCID: PMC5976312 DOI: 10.1097/md.0000000000010698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
IgG4-related disease (IgG4-RD) is recognized as an immune-mediated condition with pathology features of lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis, accompanied with or without elevated serum IgG4 concentrations. However, few of pulmonary artery IgG4-RD causing pulmonary hypertension (PH) was reported.The medical records of 3 patients with pulmonary artery IgG4-RD inducing PH were analyzed retrospectively.Imaging findings demonstrated that the lesions of 3 patients located in pulmonary artery, which were initially diagnosed as pulmonary thrombus or malignant tumor. Computed tomography pulmonary angiography (CTPA), ultrasonic cardiogram, and positron emission tomography/computed tomography (PET/CT) didn't support the diagnosis of pulmonary thrombus or malignant tumor. Right heart catheterization (RHC) showed definite PH. Biopsy by right heart catheterization in 2 patients or pneumonectomy in 1 patient confirmed the diagnosis as IgG4-RD. Treated with glucocorticoids and cyclophosphamide or rituximab, 2 patients' IgG4 concentrations declined sharply and the lesions shrunk gradually. Another patient treated with glucocorticoids died of heart failure.IgG4-RD involved pulmonary artery causing PH was rare. A high index of awareness of this disease is required for early diagnosis and treatment. PET/CT might be a valuable approach to distinguish pulmonary artery IgG4-RD from pulmonary thrombus and malignant tumor.
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Affiliation(s)
- Hui Deng
- Department of Respiratory Disease
| | | | | | - Yong Liu
- Department of Ultrasound, Beijing Shijitan Hospital, Capital Medical University
| | - Yali Xu
- Department of Respiratory Disease
| | - Jin Qian
- Department of Respiratory Disease
| | | | | | | | - Xin Jiang
- Thrombosis and Vascular Medicine Center, Vascular Biology Research Unit in State Key Lab of Cardiovascular Disease, Fuwai Hospital & National Center for Cardiovascular Disease, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Xiqi Xu
- Thrombosis and Vascular Medicine Center, Vascular Biology Research Unit in State Key Lab of Cardiovascular Disease, Fuwai Hospital & National Center for Cardiovascular Disease, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Zhicheng Jing
- Thrombosis and Vascular Medicine Center, Vascular Biology Research Unit in State Key Lab of Cardiovascular Disease, Fuwai Hospital & National Center for Cardiovascular Disease, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | | | - Lei Pan
- Department of Respiratory Disease
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Changes in N-glycans of IgG4 and its relationship with the existence of hypocomplementemia and individual organ involvement in patients with IgG4-related disease. PLoS One 2018; 13:e0196163. [PMID: 29672582 PMCID: PMC5908088 DOI: 10.1371/journal.pone.0196163] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 04/06/2018] [Indexed: 12/24/2022] Open
Abstract
Background Although increased serum IgG4 level and tissue infiltration of IgG4-positive cells are key events in IgG4-related disease (IgG4RD), and nearly half of IgG4RD patients show hypocomplementemia, the role of IgG4 in the pathogenesis of IgG4RD remains unclear. Many reports show that altered IgG glycosylation, especially IgG with agalactosylated N-linked glycan (G0 N-glycan), have proinflammatory roles including complement activation, implicated in the pathogenesis of various inflammatory diseases. This study determined the concentration of N-linked glycans (N-glycan) released from serum IgG4 in IgG4RD patients and compared the difference of glycosylation changes to those in healthy controls. We also compared the concentration of each IgG4 glycoform between patients with and without hypocomplementemia and individual organ involvement (kidney, pancreas, lymph node) in IgG4RD. Methods We collected sera from 12 IgG4RD patients and 8 healthy controls. IgG4 was isolated from sera via Melon™ Gel IgG Spin Purification Kit followed by Capture Select IgG4 (Hu) Affinity Matrix. IgG4 N-glycans were analyzed by S-BIO GlycanMap® Xpress methodology. Results Significant increases of IgG4 G0 N-glycan and IgG4 fucosylated N-glycan (F1 N-glycan) concentrations were observed in IgG4RD compared with healthy controls. Although we observed decreased levels of IgG4 F0 glycan in IgG4RD with hypocomplementemia, there were no significant differences in the galactosylation and sialyation of IgG4 N-glycans. Furthermore, there were no significant differences in the glycosylation of IgG4 N-glycans between patients with and without individual organ involvement of IgG4RD. Conclusions Although IgG4 has anti-inflammatory properties, IgG4 G0 and F1 glycans were increased in patients with IgG4RD. Our results suggest that decreased galactosylation of IgG4 is not related to complement activation and the differences of individual organ involvement in IgG4RD. IgG4 fucosylation change may be related to complement activation in IgG4RD. Further investigation is needed to clarify the role of IgG4 in IgG4RD.
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Falhammar H, Juhlin CC, Barner C, Catrina SB, Karefylakis C, Calissendorff J. Riedel's thyroiditis: clinical presentation, treatment and outcomes. Endocrine 2018; 60:185-192. [PMID: 29380231 PMCID: PMC5845586 DOI: 10.1007/s12020-018-1526-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 01/09/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Riedel´s thyroiditis (RT) is a rare inflammatory disease of the thyroid gland, causing compression and fibrosis of adjacent tissues. Typically the goiter is hard and firm. Hoarseness, dyspnea, and dysphagia may be present. METHODS We retrospectively reviewed all patients known by us with RT in addition to all patients with appropriate ICD-10 codes evaluated at the Karolinska University Hospital 2003-2015. Clinical, biochemical, and histological data of patients with RT were recorded in detail. Histological preparations were re-examined when available. RESULTS RT was diagnosed in six patients. Five were females and the median age at first presentation was 50 years (25-81 years). Median follow-up time was 3.75 years (1-22 years). At diagnosis five had hypothyroidism. Four had extrathyroidal manifestations, and one of these had also distant fibrosis. One patient had a clear IgG4/IgG ratio over 40%. One patient was treated with tracheostomy, one with isthmectomy and one with total thyroidectomy. Four had been treated with glucocorticoids, four with tamoxifen, and two with both drugs. One had also been treated with mycophenolate mofetil combined with Rituximab. At the end of follow-up four was doing fine, one had recurrent episodes of inflammation and one had died of possible complications to RT. CONCLUSION It is important to recognize RT and give adequate treatment. Steroids are still the mainstay of therapy but other medications against fibrosclerosis can be considered. Wakefulness of other fibrosing manifestations is essential. Immunohistochemistry can show whether IgG-4 plasma cells are increased which could lead to fibrosis in other organs.
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Affiliation(s)
- Henrik Falhammar
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Carl Christofer Juhlin
- Department of Clinical Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Caroline Barner
- Department of Medicine, Capio S:t Gorans Hospital, Stockholm, Sweden
| | - Sergiu-Bogdan Catrina
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Christos Karefylakis
- Department of Diabetes, Endocrinology and Metabolism, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Jan Calissendorff
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden.
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
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68
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Sakai Y, Imamura Y. Case report: IgG4-related mass-forming thyroiditis accompanied by regional lymphadenopathy. Diagn Pathol 2018; 13:3. [PMID: 29378608 PMCID: PMC6389070 DOI: 10.1186/s13000-017-0681-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/22/2017] [Indexed: 12/24/2022] Open
Abstract
Background It has been recently accepted that IgG4-related thyroiditis is comparable to the Hashimoto and Riedel thyroiditis and Graves disease which are rich in IgG4-secreting plasma cells. Many physicians believe that in IgG4-related thyroiditis, the thyroid is entirely enlarged and diffusely affected, which is similar to conventional thyroiditis, but rarely ever accompanied by pseudoneoplastic mass formation as in IgG4-related disease in the other organs. This report introduces another pattern of IgG4-related thyroiditis as mass-forming thyroiditis and presents the occurrence of IgG4-related regional lymphadenopathy as an unusual accompanying symptom. Case presentation A 66-year-old woman presented with an approximately 2.5-cm mass in the right thyroidal lobe and regional lymph node swelling, which were preoperatively misinterpreted as thyroidal carcinoma. After lobectomy, histological examination was performed, revealing that the mass showed dense stromal fibrosis, lymphoplasmacytic infiltration, and effacement of thyroid follicles, while the background thyroidal tissue seemed to mimic lymphocytic thyroiditis without fibrosis. Immunohistochemistry revealed predominance of IgG4-secreting plasma cells among infiltrating lymphocytes independent of mass lesion or background tissue. In addition, the regional Delphian and paratracheal lymph nodes were swollen, histologically showing numerous IgG4-secreting plasma cell infiltrations in the interfollicular zone. Conclusions IgG4-related mass-forming thyroiditis, which may be an extremely rare but recognizable pattern of IgG4-related thyroiditis, may be distinguishable from Hashimoto and Riedel thyroiditis, Graves disease, and thyroidal carcinoma. In addition, the regional IgG4-related lymphadenopathy, also possibly misdiagnosed as metastatic thyroidal carcinoma, may be a newly recognized manifestation of IgG4-related thyroiditis.
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Affiliation(s)
- Yasuhiro Sakai
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui, 910-1193, Japan. .,Division of Diagnostic Pathology/Surgical Pathology, University of Fukui Hospital, Eiheiji, Japan.
| | - Yoshiaki Imamura
- Division of Diagnostic Pathology/Surgical Pathology, University of Fukui Hospital, Eiheiji, Japan
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Umehara H, Okazaki K, Nakamura T, Satoh-Nakamura T, Nakajima A, Kawano M, Mimori T, Chiba T. Current approach to the diagnosis of IgG4-related disease - Combination of comprehensive diagnostic and organ-specific criteria. Mod Rheumatol 2017; 27:381-391. [PMID: 28165852 DOI: 10.1080/14397595.2017.1290911] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
IgG4-related disease (IgG4-RD) is a fascinating clinical entity proposed by Japanese investigators, and includes a wide variety of diseases, formerly diagnosed as Mikulicz's disease (MD), autoimmune pancreatitis (AIP), interstitial nephritis, prostatitis, retroperitoneal fibrosis, etc. Although all clinicians in every field of medicine may encounter this new disease, a unifying diagnostic criterion has not been established. In 2011, the Japanese IgG4 team, organized by the Ministry of Health, Labor and Welfare (MHLW) of Japan, published comprehensive diagnostic criteria for IgG4-RD. Several problems with these criteria have arisen in clinical practice, however, including the difficulty obtaining biopsy samples from some patients, and the sensitivity and the specificity of techniques used to measure serum IgG4 concentrations. Although serum IgG4 concentration is an important clinical marker for IgG4-RD, its diagnostic utility in differentiating IgG4-RD from other diseases, called IgG4-RD mimickers, remains unclear. This review describes the current optimal approach for the diagnosis of IgG4-RD, based on both comprehensive and organ-specific diagnostic criteria, in patients with diseases such as IgG4-related pancreatitis (AIP), sclerosing cholangitis, and renal, lung and orbital diseases.
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Affiliation(s)
- Hisanori Umehara
- a Division of RA and Autoimmune Diseases , Internal Medicine, Nagahama City Hospital , Shiga , Japan
| | - Kazuichi Okazaki
- b The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology , Kansai Medical University , Osaka , Japan
| | - Takuji Nakamura
- a Division of RA and Autoimmune Diseases , Internal Medicine, Nagahama City Hospital , Shiga , Japan
| | - Tomomi Satoh-Nakamura
- a Division of RA and Autoimmune Diseases , Internal Medicine, Nagahama City Hospital , Shiga , Japan
| | - Akio Nakajima
- c Division of Rheumatology , Internal Medicine, Kudo General Hospital , Ishikawa , Japan
| | - Mitsuhiro Kawano
- d Division of Rheumatology, Department of Internal Medicine, Graduate School of Medical Science , Kanazawa University , Ishikawa , Japan
| | - Tsuneyo Mimori
- e Department of Clinical Immunology, Graduate School of Medicine , Kyoto University , Kyoto , Japan
| | - Tsutomu Chiba
- f Department of Gastroenterology and Hepatology, Graduate School of Medicine , Kyoto University , Kyoto , Japan
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Martínez-Valle F, Orozco-Gálvez O, Fernández-Codina A. Update in ethiopathogeny, diagnosis and treatment of the IgG4 related disease. Med Clin (Barc) 2017; 151:18-25. [PMID: 29241876 DOI: 10.1016/j.medcli.2017.10.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 02/06/2023]
Abstract
IgG4 related disease (IgG4-RD) is probably an autoimmune pathology of unknown etiology. Diverse interactions participate in its pathogen between the adaptive and innate immune systems, activating lymphocytes B and T which trigger the inflammatory cascade, which culminates in fibrosis of the organs and their malfunction. It can affect a multitude of organs simultaneously. The diagnosis is based on the correlation of clinical findings with anatomopathological results (lymphoplasmocitary infiltrate, storiform fibrosis, obliterative phlebitis and IgG4+plasmatic cell count) and with the presence of elevated IgG4 in serum, depending on the criteria used. Corticoids and rituximab are among the few validated treatments available. There are multiple biomarkers and treatments in development. In this review, we aim to go over the principal pathogenic and clinical characteristics of IgG4-RD, as well as its handling, in accordance with the available scientific evidence.
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Affiliation(s)
- Fernando Martínez-Valle
- Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Hospital Universitario Vall Hebron, Universitat Autònoma de Barcelona, Barcelona, España; Vall d'Hebron Institut de Recerca, Barcelona, España.
| | - Olimpia Orozco-Gálvez
- Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Hospital Universitario Vall Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - Andreu Fernández-Codina
- Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Hospital Universitario Vall Hebron, Universitat Autònoma de Barcelona, Barcelona, España; Vall d'Hebron Institut de Recerca, Barcelona, España; Rheumatology Division, Department of Medicine, University of Western Ontario, London, Ontario, Canadá
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71
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Danlos FX, Rossi GM, Blockmans D, Emmi G, Kronbichler A, Durupt S, Maynard C, Luca L, Garrouste C, Lioger B, Mourot-Cottet R, Dhote R, Arlet JB, Hanslik T, Rouvier P, Ebbo M, Puéchal X, Nochy D, Carlotti A, Mouthon L, Guillevin L, Vaglio A, Terrier B. Antineutrophil cytoplasmic antibody-associated vasculitides and IgG4-related disease: A new overlap syndrome. Autoimmun Rev 2017; 16:1036-1043. [DOI: 10.1016/j.autrev.2017.07.020] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 07/04/2017] [Indexed: 12/24/2022]
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Moriyama M, Nakamura S. Th1/Th2 Immune Balance and Other T Helper Subsets in IgG4-Related Disease. Curr Top Microbiol Immunol 2017; 401:75-83. [PMID: 27744510 DOI: 10.1007/82_2016_40] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
IgG4-related disease (IgG4-RD) is a systemic disease characterized by elevated serum IgG4 levels and a strong infiltration of IgG4-positive plasma cells in various organs. IgG4-RD patients also frequently suffer from allergic diseases, including asthma and atopic dermatitis. It is well known that T helper type 2 (Th2) cells have an important role in the initiation of allergic diseases, and Th2 cytokines such as interleukin (IL)-4 and IL-13 promote class switching to IgG4. Therefore, IgG4-RD is considered to be a Th2-predominant disease. However, other Th subsets, including regulatory T cells and T follicular helper cells, have recently received increasing attention with regard to the pathogenesis of IgG4-RD. Exploring the interconnected network of Th subsets in IgG4-RD is a highly promising field of investigation. In this review, we focus on the localization and functions of individual Th subsets to clarify the involvement of these cells in the pathogenesis of IgG4-RD.
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Affiliation(s)
- Masafumi Moriyama
- OCT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Seiji Nakamura
- Division of Maxillofacial Diagnostic and Surgical Sciences, Section of Oral and Maxillofacial Oncology, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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73
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Piatek CI, Vergara-Lluri ME, Pullarkat V, Siddiqi IN, O'Connell C, Brynes RK, Feinstein DI. Autoimmune Myelofibrosis: Clinical Features, Course, and Outcome. Acta Haematol 2017; 138:129-137. [PMID: 28866671 DOI: 10.1159/000479103] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 06/29/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND Autoimmune myelofibrosis (AIMF) is an underrecognized cause of nonmalignant bone marrow fibrosis which occurs in the presence or absence of a defined systemic autoimmune disease. Patients with AIMF present with cytopenias and autoantibodies, and have a distinctive nonclonal myelofibrosis on bone marrow examination. AIMF is distinguished from primary myelofibrosis by the absence of splenomegaly, eosinophilia, or basophilia, and the absence of abnormal myeloid, erythroid, or megakaryocytic morphology. OBJECTIVES The objective of the study was to describe the clinical presentation and outcomes of patients with AIMF. METHODS We conducted a single-institution, retrospective chart review of patients diagnosed with AIMF to investigate clinical presentations, therapies, and outcomes. RESULTS Twelve patients with AIMF were identified with a mean follow-up of 5.8 years. All patients had detectable autoantibodies and the majority had concomitant autoimmune disorders. Four patients experienced a complete response of cytopenias and 3 patients experienced a partial response (PR) of cytopenias with immunosuppressive therapy. One patient achieved a PR following splenectomy. No patients were diagnosed with myeloproliferative neoplasms during the follow-up period. CONCLUSIONS AIMF contributes to cytopenias in the subset of patients with various autoimmune disorders. The majority of patients with AIMF experience an improvement in cytopenias with immunosuppressive therapy.
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Affiliation(s)
- Caroline I Piatek
- Division of Hematology, Department of Medicine, Los Angeles County-University of Southern California Medical Center and Jane Anne Nohl Division of Hematology, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
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74
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Yu SH, Kang JG, Kim CS, Ihm SH, Choi MG, Yoo HJ, Lee SJ. Clinical Implications of Immunoglobulin G4 to Graves' Ophthalmopathy. Thyroid 2017; 27:1185-1193. [PMID: 28805160 DOI: 10.1089/thy.2017.0126] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND This study aimed to explore the relation of immunoglobulin G4 (IgG4) to clinical and laboratory characteristics of patients newly diagnosed with Graves' disease (GD) without or with Graves' ophthalmopathy (GO) and to analyze association of IgG4 with development and grade of GO in GD patients. METHODS Sixty-four GD patients and 64 sex- and age-matched euthyroid subjects were enrolled. Serum levels of thyroid hormones, thyroid autoantibodies, immunoglobulin G (IgG), and IgG4 were measured, and ophthalmological and ultrasonographical evaluation was performed. RESULTS In GD patients compared with euthyroid subjects, levels of thyroid hormones, thyroid autoantibodies and IgG4 as well as the IgG4/IgG ratio were elevated. GD patients having GO in comparison to not having GO were characterized by a female predominance; a high incidence of smoking history; high levels of T3, free T4, TSH receptor autoantibody (TRAb) and IgG4; and a high IgG4/IgG ratio after adjusting for sex. In GD patients, the IgG4 level was the independent factor associated with GO development on multivariate analysis. When severity and activity of GO were classified using the European Group on Graves' Orbitopathy criteria in GD patients with GO, IgG4 levels and IgG4/IgG ratio were elevated in the moderate-to-severe group compared with the mild group and in the active group compared with the inactive group. IgG4 levels and IgG4/IgG ratio became elevated as clinical activity score increased. IgG4 levels were positively correlated with TRAb levels. The high IgG4 group in comparison to the normal IgG4 group had a high incidence of family history of autoimmune thyroid disease, high levels of free T4, TRAb and IgG4, a high IgG4/IgG ratio and extensive hypoechogenicity. CONCLUSIONS These results suggest that IgG4 levels are elevated in newly diagnosed GD patients compared with euthyroid subjects and in the presence of GO compared with the absence of GO. Moreover, our findings suggest that IgG4 levels are associated with the development and grade of GO in GD patients.
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Affiliation(s)
- Sung Hoon Yu
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hanyang University , Seoul, Republic of Korea
| | - Jun Goo Kang
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
| | - Chul Sik Kim
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
| | - Sung-Hee Ihm
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
| | - Moon Gi Choi
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
| | - Hyung Joon Yoo
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
| | - Seong Jin Lee
- 2 Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University , Chuncheon, Republic of Korea
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Abstract
This review article deals with the classification, clinical features and morphology of thyroiditis. These inflammatory diseases account for approximately 20 % of all thyroid diseases. The vast majority of cases of thyroiditis are of immunogenic origin while non-immunogenic thyroiditis (caused by pathogens or iatrogenic) is a rarity.
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76
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Thompson A, Whyte A. Imaging of IgG4-related disease of the head and neck. Clin Radiol 2017; 73:106-120. [PMID: 28501095 DOI: 10.1016/j.crad.2017.04.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/15/2022]
Abstract
IgG4-related disease is a systemic, inflammatory disorder typically involving multiple organ systems. Several eponymous conditions described previously in the clinical and radiology literature are now recognised to be part of the IgG4-related disease spectrum. This includes multiple manifestations in the head and neck region, which are the subject of this review. Imaging can occasionally suggest the specific diagnosis of IgG4 disease. More commonly, it will be included in a limited differential diagnosis that requires clarification with the aid of image-guided biopsy. There are strict histopathological criteria for the diagnosis of IgG4-related disease.
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Affiliation(s)
- A Thompson
- Neurological Intervention and Imaging Service Western Australia, Level 1, G Block, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA 6009, Australia; Neurological Intervention and Imaging Service Western Australia, Royal Perth Hospital, 197 Wellington Street, Perth, WA 6000, Australia; Princess Margaret Hospital for Children, Roberts Road, Subiaco, WA 6008, Australia.
| | - A Whyte
- Perth Radiological Clinic, 127 Hamersley Road, Subiaco, WA 6008, Australia; School of Surgery, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; Department of Medicine and Radiology, University of Melbourne, Parkville, VIC 3010, Australia
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Stan MN, Sonawane V, Sebo TJ, Thapa P, Bahn RS. Riedel's thyroiditis association with IgG4-related disease. Clin Endocrinol (Oxf) 2017; 86:425-430. [PMID: 27647429 DOI: 10.1111/cen.13238] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 04/28/2016] [Accepted: 09/15/2016] [Indexed: 12/24/2022]
Abstract
CONTEXT IgG4-positive (+) plasma cells have been reported in both Riedel's thyroiditis (RT) and Hashimoto's thyroiditis (HT). These cells are the hallmark of IgG4-related disease (IgG4-RD). OBJECTIVE We sought to determine whether RT is part of IgG4-RD spectrum. DESIGN, SETTING AND PATIENTS This was a case-control study performed at a tertiary medical centre. We included RT cases from the period 1958 to 2008 that had sufficient paraffin-embedded tissue for IgG4 immunostaining. Controls were patients with HT, age and gender matched, with similar pathology criteria. MAIN OUTCOME MEASURE The main outcome measures were the intensity of the IgG4 staining and the clinical and histological correlates with IgG4-RD. RESULTS Six pairs of RT and HT were analysed. The mean age was 44·7 years. In both groups, 5/6 cases had positive IgG4 staining. The mean number of IgG4 + cells/ HPF, normalized to the degree of inflammation, was 3·2 ± 3·0 SD (RT) vs 0·9 ± 0·7 (HT), P = 0·15, for fibrotic areas and 2·1 ± 2·3 SD vs 1·0 ± 0·8 (P = 0·39) for areas with lymphoid aggregates. We found the number of IgG4 + cells in RT to be inversely correlated with the duration of disease (P = 0·046). Three RT cases had associated comorbidities from the IgG4-RD spectrum while none of the HT cases had such conditions. CONCLUSIONS Riedel's thyroiditis is a component of IgG4-RD with the density of the IgG4 + lymphocytic infiltrate being time dependent. In this small study, we did not identify differences in IgG4 infiltration between RT and HT, minimizing the utility of this marker in RT diagnosis.
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Affiliation(s)
- Marius N Stan
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Vikram Sonawane
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Thomas J Sebo
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Prabin Thapa
- Department of Health Sciences Research, Division of Biostatistics, Mayo Clinic, Rochester, MN, USA
| | - Rebecca S Bahn
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
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Katabathina VS, Khalil S, Shin S, Lath N, Menias CO, Prasad SR. Immunoglobulin G4-Related Disease: Recent Advances in Pathogenesis and Imaging Findings. Radiol Clin North Am 2017; 54:535-51. [PMID: 27153787 DOI: 10.1016/j.rcl.2015.12.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a novel, immune-mediated, multisystem disease characterized by the development of tumefactive lesions in multiple organs. IgG4-RD encompasses many fibroinflammatory diseases that had been thought to be confined to single organs. Delayed diagnosis or misdiagnosis as malignancies leading to aggressive treatment may be averted by identification of the multisystem nature of IgG4-RD. Most cases show exquisite response to steroid therapy; steroid-resistant cases are being treated by novel therapeutic agents, including B-cell depleting agents such as rituximab. Cross-sectional imaging studies play a pivotal role in the initial diagnosis, assessing response to therapy and long-term surveillance.
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Affiliation(s)
- Venkata S Katabathina
- Department of Radiology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA.
| | - Suhare Khalil
- Department of Radiology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA
| | - Sooyoung Shin
- Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Narayan Lath
- Department of Radiology, Singapore General Hospital, Outram road, Singapore 169608, Singapore
| | | | - Srinivasa R Prasad
- Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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From Pathogenesis, Clinical Manifestation, and Diagnosis to Treatment: An Overview on Autoimmune Pancreatitis. Gastroenterol Res Pract 2017; 2017:3246459. [PMID: 28197205 PMCID: PMC5288542 DOI: 10.1155/2017/3246459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 11/01/2016] [Accepted: 12/27/2016] [Indexed: 02/06/2023] Open
Abstract
Autoimmune pancreatitis (AIP) is a special type of chronic pancreatitis which is autoimmune mediated. The international consensus diagnostic criteria (ICDC) 2011 proposed two types of AIP: type I is associated with histological pattern of lymphoplasmacytic sclerosing pancreatitis (LPSP), characterized by serum IgG4 elevation, whereas type 2 is named idiopathic duct-centric pancreatitis (IDCP), with granulocytic epithelial lesion (GEL) and immunoglobulin G4 (IgG4) negative. The pathogenic mechanism is unclear now; based on genetic factors, disease specific or related antigens, innate and adaptive immunity may be involved. The most common clinical manifestations of AIP are obstructive jaundice and upper abdominal pain. The diagnosis can be made by a combination of parenchymal and ductal imaging, serum IgG4 concentrations, pancreatic histology, extrapancreatic disease, and glucocorticoid responsiveness according to ICDC 2011. Because of the clinical and imaging similarities with pancreatic cancer, general work-up should be done carefully to exclude pancreatic malignant tumor before empirical trial of glucocorticoid treatment. Glucocorticoid is the most common drug for AIP to induce remission, while there still exists controversy on steroid maintenance and treatment for relapse. Further studies should be done to identify more specific serum biomarkers for AIP, the pathogenic mechanisms, and the treatment for relapse.
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Torimoto K, Okada Y, Kurozumi A, Narisawa M, Arao T, Tanaka Y. Clinical Features of Patients with Basedow's Disease and High Serum IgG4 Levels. Intern Med 2017; 56:1009-1013. [PMID: 28458304 PMCID: PMC5478559 DOI: 10.2169/internalmedicine.56.7824] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objective IgG4-related disease is a recently characterized condition presenting with high blood IgG4 levels, swelling of organs, and hypertrophic lesions. This disease is associated with thyroid disease, Hashimoto's disease, and Riedel's thyroiditis. However, there is little information on the association between IgG4-related disease and Basedow's disease. We herein defined the clinical features of patients with Basedow's disease and high IgG4 levels. Methods We compared two groups of patients with Basedow's disease (n=72) who had either normal IgG4 levels (<135 mg/dL; n=67) or high IgG4 levels (≥135 mg/dL; n=5 [6.9%], mean IgG4: 206±116 mg/dL, IgG4/IgG ratio: 10.6%±3.3%). Patients Seventy-two newly diagnosed, untreated patients with Basedow's disease. Results Compared to the normal IgG4 group, patients in the high IgG4 group were predominantly male and showed a significantly higher thyroid low-echo score (1.8±0.4 vs. 1.2±0.5) and eosinophil count (363±354/mm2 vs. 136±122/mm2). Five patients had high IgG4 levels: one had a pancreatic lesion, and four had thyroid lesions. Conclusion Patients with Basedow's disease and high IgG4 levels may represent a new subtype of Basedow's disease. Further studies with larger sample sizes are needed.
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Affiliation(s)
- Keiichi Torimoto
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Yosuke Okada
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Akira Kurozumi
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Manabu Narisawa
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Tadashi Arao
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
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81
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Recent advances in knowledge regarding the head and neck manifestations of IgG4-related disease. Auris Nasus Larynx 2016; 44:7-17. [PMID: 27956101 DOI: 10.1016/j.anl.2016.10.011] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 10/31/2016] [Indexed: 12/24/2022]
Abstract
IgG4-related disease (IgG4-RD) is a chronic inflammatory disorder, characterized by elevated serum IgG4 levels as well as abundant infiltration of IgG4-positive plasmacytes and fibrosis in various organs, including the head and neck region. In particular, the salivary glands, orbit, and thyroid are common sites of disease involvement. IgG4-RD is diagnosed based on various clinical, serological, and histopathological findings, none of which are pathognomonic. Hence, various differential diagnoses, which exhibit elevated serum IgG4 levels and infiltration of IgG4-postive cells into tissues, need to be excluded, especially malignant diseases and mimicking disorders. Systemic corticosteroids are generally effective in inducing IgG4-RD remission; however, recurrent or refractory cases are common. In addition, although the pathogenic mechanisms of IgG4-RD remain unclear, an antigen-driven inflammatory condition is believed to be involved. Recent studies have indicated the important pathogenic role of B cell/T cell collaboration and innate immunity in this disease. Nevertheless, additional research and discussions are needed to resolve many remaining questions. In this review, we provide an overview of the recent insights on the history, clinical features, diagnosis, and treatment of IgG4-RD in the head and neck region. Furthermore, we have also addressed the pathogenesis of this disease.
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82
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Topliss DJ. Clinical Update in Aspects of the Management of Autoimmune Thyroid Diseases. Endocrinol Metab (Seoul) 2016; 31:493-499. [PMID: 28029020 PMCID: PMC5195823 DOI: 10.3803/enm.2016.31.4.493] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 11/11/2016] [Accepted: 11/17/2016] [Indexed: 12/24/2022] Open
Abstract
Aspects of autoimmune thyroid disease updated in this review include: immunoglobulin G4 (IgG4)-related thyroid disease (Riedel's thyroiditis, fibrosing variant of Hashimoto's thyroiditis, IgG4-related Hashimoto's thyroiditis, and Graves' disease with elevated IgG4 levels); recent epidemiological studies from China and Denmark indicating that excess iodine increases the incidence of Hashimoto's thyroiditis and hypothyroidism; immunomodulatory agents (ipilimumab, pembrolizumab, nivolumab) activate immune response by inhibiting T-cell surface receptors which down-regulate immune response, i.e., cytotoxic T-lymphocyte antigen 4 and programmed cell death protein 1 pathways; alemtuzumab is a humanised monoclonal antibody to CD52 which causes immune depletion and thyroid autoimmune disease especially Graves' hyperthyroidism; small molecule ligand (SML) agonists which activate receptors, SML neutral antagonists, which inhibit receptor activation by agonists, and SML inverse agonists which inhibit receptor activation by agonists and inhibit constitutive agonist independent signaling have been identified. SML antagonism of thyroid-stimulating hormone-receptor stimulatory antibody could treat Graves' hyperthyroidism and Graves' ophthalmopathy; and thyroxine treatment of subclinical hypothyroidism can produce iatrogenic subclinical hyperthyroidism with the risk of atrial fibrillation and osteoporosis. The increased risk of harm from subclinical hyperthyroidism may be stronger than the potential benefit from treatment of subclinical hypothyroidism.
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Affiliation(s)
- Duncan J Topliss
- Department of Endocrinology and Diabetes, The Alfred, Melbourne, Australia
- Department of Medicine, Monash University, Melbourne, Australia.
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83
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Radotra BD, Aggarwal A, Kapoor A, Singla N, Chatterjee D. An orphan disease: IgG4-related spinal pachymeningitis: report of 2 cases. J Neurosurg Spine 2016; 25:790-794. [DOI: 10.3171/2016.4.spine1674] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
IgG4-related disease is relatively new disease entity and a rare one, and our knowledge of this entity continues to evolve. It was first described in the pancreas and since then has been described in virtually every organ. Spinal involvement resulting in pachymeningitis is rare, and there are only 8 reported cases of the same to date, with the cervicothoracic spine being the most commonly affected region.
The authors describe 2 cases in which the patients presented with spinal compression resulting in myeloradiculopathy (Case 1) and radiculopathy (Case 2). Imaging of spine in both cases revealed an ill-defined contrast-enhancing lesion at the lumbar level. Preoperatively, a diagnosis of spinal tumor was made, but intraoperatively no spinal tumor was found. The diagnosis was established histopathologically.
The disease has no particular defining features clinically or radiologically and can mimic common spinal tumors. It is important to accurately diagnose this rare entity because of its multisystem involvement and progressive course. Strict treatment guidelines have yet to be formulated. Although histologically this disease can mimic other inflammatory conditions, the presence of storiform fibrosis and an increased number of IgG4-positive plasma cells can help in clarifying the diagnosis.
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Affiliation(s)
| | - Ashish Aggarwal
- 2Neurosurgery, Postgraduate Institution of Medical Education and Research, Chandigarh, India
| | - Ankur Kapoor
- 2Neurosurgery, Postgraduate Institution of Medical Education and Research, Chandigarh, India
| | - Navneet Singla
- 2Neurosurgery, Postgraduate Institution of Medical Education and Research, Chandigarh, India
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84
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Kottahachchi D, Topliss DJ. Immunoglobulin G4-Related Thyroid Diseases. Eur Thyroid J 2016; 5:231-239. [PMID: 28101487 PMCID: PMC5216195 DOI: 10.1159/000452623] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/14/2016] [Indexed: 12/24/2022] Open
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a new disease category involving many organ systems, including the endocrine system in general and the thyroid in particular. Since an initial association was made between hypothyroidism and autoimmune (IgG4-related) pancreatitis, more forms of IgG4-related thyroid disease (IgG4-RTD) have been recognized. Four subcategories of IgG4-RTD have so far been identified: Riedel thyroiditis (RT), fibrosing variant of Hashimoto thyroiditis (FVHT), IgG4-related Hashimoto thyroiditis, and Graves disease with elevated IgG4 levels. Although a male predominance is seen for IgG4-RD in general, RT and FVHT have a female preponderance. The pathogenesis of IgG4-RD is not completely understood; however, genetic factors, antigen-antibody reactions, and an allergic phenomenon have been described. Diagnosis of IgG4-RD requires a combination of clinical features, serological evidence, and histological features. Histology is the mainstay of diagnosis, with IgG4 immunostaining. Although serum IgG4 levels are usually elevated in IgG4-RD, raised serum IgG4 is neither necessary nor adequate for diagnosis. Imaging supports the diagnosis and is a useful tool in disease monitoring. Management of IgG4-RTD is both medical and surgical. Steroids are the first-line treatment and may produce a swift response. Tamoxifen and rituximab are second-line agents used in steroid-resistant patients. Surgical debulking is carried out in RT solely as a procedure to relieve obstruction. Other endocrine associations described with IgG4-RD are hypophysitis and Hashimoto encephalopathy. IgG4-RTD is an uncommon disease entity, and prompt diagnosis and treatment can improve outcomes.
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Affiliation(s)
- Dulani Kottahachchi
- Department of Endocrinology and Diabetes, The Alfred Hospital, Monash University, Melbourne, VIC, Australia
| | - Duncan J. Topliss
- Department of Endocrinology and Diabetes, The Alfred Hospital, Monash University, Melbourne, VIC, Australia
- Department of Medicine, Monash University, Melbourne, VIC, Australia
- *Duncan J. Topliss, Department of Endocrinology and Diabetes, The Alfred, PO Box 315, Prahran, VIC 3181 (Australia), E-Mail
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85
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Chong Xi R, Hong Qiao W, Yan L. Severe trachea compression caused by Riedel's thyroiditis: A case report and review of the literature. Ann Med Surg (Lond) 2016; 12:18-20. [PMID: 27833746 PMCID: PMC5096594 DOI: 10.1016/j.amsu.2016.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 10/22/2016] [Accepted: 10/23/2016] [Indexed: 01/18/2023] Open
Abstract
Background Riedel's thyroiditis (RT) is a rare form of chronic thyroiditis, associated with fibroinflammatory process involving the thyroid and surrounding cervical tissues, leading to compressive symptoms. Case presentation We present a case of RT in a 73-year-old female with dyspnoea caused by severe trachea compression. She had reported dyspnoea during physical stress, and had noticed a large mass on the front of the neck. Despite the combination of various imaging modalities, the thyroid mass was not differentiated from thyroid malignancy and other thyroid disorder. Total thyroidectomy and tracheotomy were performed. During surgery, the thyroid had severe adhesion to surrounding tissue and the pathology revealed RT. Conclusions Clinicians should be aware of RT. It is important to differentiate this condition from other thyroid disorders, especially malignant lesions. Thyroidectomy is indicated for patients with compressive symptoms, suspicious malignancy and failure of conservative management. Riedel's thyroiditis (RT) is a rare form of chronic thyroiditis, associated with fibroinflammatory process involving the thyroid and surrounding cervical tissues, leading to compressive symptoms. It is important to differentiate this condition from other thyroid disorders, especially malignant lesions. Thyroidectomy is indicated for patients with compressive symptoms, suspicious malignancy and failure of conservative management. Clinicians should be aware of RT.
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Affiliation(s)
- Ren Chong Xi
- Department of General Surgery, Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University, Cangzhou 061000, China
| | - Wang Hong Qiao
- Department of General Surgery, Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University, Cangzhou 061000, China
| | - Liu Yan
- Pathology Department, Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University, Cangzhou 061000, China
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86
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Haldar D, Cockwell P, Richter AG, Roberts KJ, Hirschfield GM. An overview of the diagnosis and management of immunoglobulin G4-related disease. CMAJ 2016; 188:953-961. [PMID: 27325130 PMCID: PMC5026513 DOI: 10.1503/cmaj.151402] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Debashis Haldar
- Centre for Liver Research (Haldar, Hirschfield), National Institute for Health Research Liver Biomedical Research Unit, University of Birmingham; Department of Renal Medicine (Cockwell), Institute of Translational Medicine, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston; Institute of Immunology and Immunotherapy (Haldar, Richter, Hirschfield), College of Medical and Dental Sciences, University of Birmingham; Department of Hepatobiliary Surgery (Roberts), Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston, Birmingham, UK
| | - Paul Cockwell
- Centre for Liver Research (Haldar, Hirschfield), National Institute for Health Research Liver Biomedical Research Unit, University of Birmingham; Department of Renal Medicine (Cockwell), Institute of Translational Medicine, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston; Institute of Immunology and Immunotherapy (Haldar, Richter, Hirschfield), College of Medical and Dental Sciences, University of Birmingham; Department of Hepatobiliary Surgery (Roberts), Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston, Birmingham, UK
| | - Alex G Richter
- Centre for Liver Research (Haldar, Hirschfield), National Institute for Health Research Liver Biomedical Research Unit, University of Birmingham; Department of Renal Medicine (Cockwell), Institute of Translational Medicine, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston; Institute of Immunology and Immunotherapy (Haldar, Richter, Hirschfield), College of Medical and Dental Sciences, University of Birmingham; Department of Hepatobiliary Surgery (Roberts), Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston, Birmingham, UK
| | - Keith J Roberts
- Centre for Liver Research (Haldar, Hirschfield), National Institute for Health Research Liver Biomedical Research Unit, University of Birmingham; Department of Renal Medicine (Cockwell), Institute of Translational Medicine, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston; Institute of Immunology and Immunotherapy (Haldar, Richter, Hirschfield), College of Medical and Dental Sciences, University of Birmingham; Department of Hepatobiliary Surgery (Roberts), Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston, Birmingham, UK
| | - Gideon M Hirschfield
- Centre for Liver Research (Haldar, Hirschfield), National Institute for Health Research Liver Biomedical Research Unit, University of Birmingham; Department of Renal Medicine (Cockwell), Institute of Translational Medicine, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston; Institute of Immunology and Immunotherapy (Haldar, Richter, Hirschfield), College of Medical and Dental Sciences, University of Birmingham; Department of Hepatobiliary Surgery (Roberts), Queen Elizabeth Hospital Birmingham, University Hospital Birmingham, Edgbaston, Birmingham, UK
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87
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88
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Abstract
This article describes an unusual case of Riedel's thyroiditis and discusses its imagery, pathology, and treatment.
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Affiliation(s)
- Mohammed Darouichi
- Département d'imagerie médicale, Hôpital Neuchâtelois, Maladière 45, CH-2000 Neuchâtel, Switzerland
| | - Paul Eugène Constanthin
- Department of Fundamental Neurosciences, Universitiy of Geneva Medical School, Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland
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89
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Recurrent Mastoiditis Mimics IgG4 Related Disease: A Potential Diagnostic Pitfall. Head Neck Pathol 2016; 10:314-20. [PMID: 27091207 PMCID: PMC4972764 DOI: 10.1007/s12105-016-0710-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 03/02/2016] [Indexed: 12/24/2022]
Abstract
IgG4-related disease (IgG4-RD) is a recently recognized entity that causes progressive fibrosis and formation of mass lesions. IgG4-RD can be diagnosed histologically by its hallmarks of storiform fibrosis, prominent lymphoplasmacytic infiltrate, and obliterative phlebitis, accompanied by the infiltration of excessive numbers of IgG4-positive plasma cells as well as elevations in serum IgG4 concentrations. A recent publication reported a case of IgG4-RD in the mastoid sinus, representing a new anatomic location for this disease. We report two additional cases of IgG4-RD occurring in the mastoid and causing clinical mastoiditis. The presenting symptoms were varied-tinnitus, hearing loss, and cranial nerve palsies. All three cases showed a dense lymphoplasmacytic infiltrate, storiform type fibrosis as well as elevated numbers of IgG4 positive plasma cells. The three patients responded to immunosuppressive therapy that included steroids and Rituximab. We further investigated 162 consecutive mastoiditis cases at our institution in order to determine the frequency of IgG4-RD as a previously unrecognized cause of mastoiditis. Within this latter cohort we identified nine cases of mastoiditis that had two of the histologic features of IgG4-RD, specifically storiform fibrosis and a dense lymphoplasmacytic infiltrate. Two of these cases showed >50 IgG4-positive plasma cells per high-power field with IgG4-IgG ratio of >40 %, thus fulfilling histological criteria for IgG4-RD. However, both were due to severe acute or chronic infection. In conclusion, we reaffirm IgG4 related mastoiditis as a distinct but uncommon cause of recurrent mastoiditis. The diagnosis of IgG4-related mastoiditis should be rendered with caution, and only after the exclusion of potential mimickers, particularly infection.
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90
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Moriyama M, Ohta M, Furukawa S, Mikami Y, Tanaka A, Maehara T, Yamauchi M, Ishiguro N, Hayashida JN, Kawano S, Ohyama Y, Kiyoshima T, Nakamura S. The diagnostic utility of labial salivary gland biopsy in IgG4-related disease. Mod Rheumatol 2016; 26:725-9. [DOI: 10.3109/14397595.2016.1148225] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Masafumi Moriyama
- OBT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Miho Ohta
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Sachiko Furukawa
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Yurie Mikami
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Akihiko Tanaka
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Takashi Maehara
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Masaki Yamauchi
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Noriko Ishiguro
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Jun-Nosuke Hayashida
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Shintaro Kawano
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
| | - Yukiko Ohyama
- Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan, and
| | - Tamotsu Kiyoshima
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Seiji Nakamura
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan,
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91
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Moghaddam PA, Virk R, Sakhdari A, Prasad ML, Cosar EF, Khan A. Five Top Stories in Thyroid Pathology. Arch Pathol Lab Med 2016; 140:158-70. [PMID: 26910221 DOI: 10.5858/arpa.2014-0468-ra] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Thyroid carcinoma is the most common malignant tumor of endocrine organs, yet it only accounts for approximately 1% of all cancers in the United States with more than 35,000 new cases diagnosed each year and more than 450,000 people living with this disease. While most tumors can be diagnosed without much difficulty, a few tumor types, especially tumors with follicular pattern, sometimes pose a diagnostic challenge. OBJECTIVE To discuss morphologic, immunohistochemical, and molecular features of thyroid tumors. We also explore the clinicopathologic features of papillary microcarcinoma and medullary microcarcinoma and how the latter is related and differentiated from C-cell hyperplasia. Finally with the ever-growing list of organ systems involved in immunoglobulin (Ig) G4-related diseases, we discuss the still not completely explored IgG-4-related thyroid disease. DATA SOURCES Data were obtained from review of the pertinent peer-reviewed literature and institutional experience. CONCLUSIONS Histomorphologic evaluation still remains the gold standard for diagnosis in most cases of thyroid diseases. The application of ancillary studies such as immunohistochemistry and molecular diagnosis, including next-generation sequencing, is becoming more common.
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Affiliation(s)
- Parnian Ahmadi Moghaddam
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Renu Virk
- and the Department of Pathology, Yale School of Medicine, New Haven, Connecticut (Drs Virk and Prasad)
| | - Ali Sakhdari
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Manju L Prasad
- and the Department of Pathology, Yale School of Medicine, New Haven, Connecticut (Drs Virk and Prasad)
| | - Ediz F Cosar
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Ashraf Khan
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
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92
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Rice CM, Spencer T, Bunea G, Scolding NJ, Sloan P, Nath U. Intracranial spread of IgG4-related disease via skull base foramina. Pract Neurol 2016; 16:240-2. [PMID: 26856357 DOI: 10.1136/practneurol-2015-001315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2016] [Indexed: 12/24/2022]
Abstract
IgG4-related disease (IgG4-RD) is a newly recognised, multiorgan, inflammatory disease, and its full clinical spectrum remains undefined. We present a biopsy-proven case of IgG4-RD presenting with a parapharyngeal mass with intracranial extension and possible involvement of the brain parenchyma. We highlight the importance of considering the diagnosis in those presenting with tumefactive lesions, leptomeningitis or pachymeningitis and emphasise the value of securing a tissue diagnosis so that appropriate long-term treatment can be instigated and complications avoided.
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Affiliation(s)
- C M Rice
- Department of Neurology, North Bristol NHS Trust, Bristol, UK Clinical Neuroscience, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - T Spencer
- Department of Neurology, North Bristol NHS Trust, Bristol, UK
| | - G Bunea
- Department of Radiology, Sunderland Royal Hospital, Sunderland, UK
| | - N J Scolding
- Department of Neurology, North Bristol NHS Trust, Bristol, UK Clinical Neuroscience, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - P Sloan
- Department of Pathology, Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - U Nath
- Department of Neurology, Sunderland Royal Hospital, Sunderland, UK
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93
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Vasovagal reflex emergency caused by Riedel's thyroiditis: A case report and review of the literature. Asian J Surg 2016; 39:41-4. [DOI: 10.1016/j.asjsur.2013.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 09/21/2012] [Accepted: 01/09/2013] [Indexed: 11/18/2022] Open
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94
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Li W, Xie XY, Su JZ, Hong X, Chen Y, Gao Y, Zhang ZY, Yu GY. Ultrasonographic Features of Immunoglobulin G4-Related Sialadenitis. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:167-175. [PMID: 26518180 DOI: 10.1016/j.ultrasmedbio.2015.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 07/31/2015] [Accepted: 09/14/2015] [Indexed: 06/05/2023]
Abstract
The aim of this study was to determine the role of ultrasonography in the diagnosis and follow-up evaluation of immunoglobulin G4-related sialadenitis. In this study, 42 patients with immunoglobulin G4-related sialadenitis underwent ultrasonography of the parotid and submandibular glands, and the sonographic appearance was compared with the pathologic findings. Post-treatment ultrasonographic appearance was compared with the pre-treatment findings in 30 patients who received immunomodulatory therapy. The ultrasonographic appearance of the affected glands was divided into five patterns: superficial hypo-echoic, multiple hypo-echoic foci, whole-gland heterogeneity, space occupying and normal echo. Histopathologic examination revealed marked lymphoplasmacytic inflammation and inter-lobular fibrosis, which were more severe in the superficial than deep portion of the affected glands. After treatment, the volume of the affected gland decreased significantly, the internal echo became more homogeneous and the superficial hypo-echoic area disappeared or was reduced. In conclusion, ultrasonography may play an important role in the diagnosis and follow-up evaluation of immunoglobulin G4-related sialadenitis.
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Affiliation(s)
- Wei Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xiao-Yan Xie
- Department of Oral Radiology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jia-Zeng Su
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xia Hong
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yan Chen
- Department of Oral Pathology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yan Gao
- Department of Oral Pathology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zu-Yan Zhang
- Department of Oral Radiology, Peking University School and Hospital of Stomatology, Beijing, China.
| | - Guang-Yan Yu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
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95
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A small subgroup of Hashimoto’s thyroiditis is associated with IgG4-related disease. Virchows Arch 2015; 468:321-7. [DOI: 10.1007/s00428-015-1893-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/05/2015] [Accepted: 11/25/2015] [Indexed: 12/24/2022]
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Bozkirli E, Bakiner OS, Ersozlu Bozkirli ED, Eksi Haydardedeoglu F, Sizmaz S, Torun AI, Ertorer ME. Serum Immunoglobulin G4 levels are elevated in patients with Graves' ophthalmopathy. Clin Endocrinol (Oxf) 2015; 83:962-7. [PMID: 25400133 DOI: 10.1111/cen.12671] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/30/2014] [Accepted: 11/12/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Recent studies have shown close association between serum Immunoglobulin G4 (IgG4) levels and forms of autoimmune thyroiditis. However, there are limited data about the relationship between IgG4 and Graves' ophthalmopathy (GO). In the present study, we aimed to determine the possible association between IgG4 and GO. DESIGN Cross-sectional study. PATIENTS Sixty-five patients with Graves' disease (GD) and 25 healthy controls were recruited into the study. Thirty-two of these patients had GO. MEASUREMENTS Serum IgG4 levels, thyroid functions and thyroid volumes were measured in all participants. Ophthalmological examination including Hertel's exophthalmometer readings (HER), Schirmer's test (ST), 'NO SPECS' classification and clinical activity score evaluation (CAS) were performed to all patients with GD. RESULTS IgG4 levels were significantly elevated in patients with Graves' disease compared to controls (P = 0·0001). Also, IgG4 levels were significantly higher in patients with and without GO when compared to control subjects (P = 0·0001 and P = 0·002, respectively). Furthermore, IgG4 levels were significantly higher in the GO group compared with GD patients without GO (P = 0·024). IgG4 levels were observed to increase in parallel to CAS. Compared with other GD patients, 15 GD patients with serum IgG4 levels ≥ 135 mg/dl had higher CAS scores (P = 0·012). None of the factors including, TSH, T3, T4 levels, thyroid volume, HER and ST measurements, affect IgG4 levels as an independent factor. CONCLUSION IgG4 levels are evidently increased in patients with GD, and there is a possible relationship between IgG4 and GO. Our results suggest that IgG4 may be helpful in screening GD patients with high risk for GO and may well become a good indicator for the selection of right medication in the future.
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Affiliation(s)
- Emre Bozkirli
- Department of Endocrinology and Metabolism Diseases, Faculty of Medicine, Baskent University, Adana, Turkey
| | - Okan Sefa Bakiner
- Department of Endocrinology and Metabolism Diseases, Faculty of Medicine, Baskent University, Adana, Turkey
| | | | - Filiz Eksi Haydardedeoglu
- Department of Endocrinology and Metabolism Diseases, Faculty of Medicine, Baskent University, Adana, Turkey
| | - Selcuk Sizmaz
- Department of Ophthalmology, Faculty of Medicine, Baskent University, Adana, Turkey
| | - Aysenur Izol Torun
- Department of Endocrinology and Metabolism Diseases, Faculty of Medicine, Baskent University, Adana, Turkey
| | - Melek Eda Ertorer
- Department of Endocrinology and Metabolism Diseases, Faculty of Medicine, Baskent University, Adana, Turkey
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97
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Abstract
Ormond's disease is a relatively rare disease with unclear etiology, characterized by chronic periaortitis and retroperitoneal fibrosis. The inflammatory process affects the infrarenal part of the abdominal aorta and the iliac arteries, and the presence of infiltrates encasing the ureters and inferior vena cava. This disease is currently classed as an IgG4-related disease. In our review we analyse the clinical history, diagnostic approaches, surgical and immunosuppressive therapies.
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Affiliation(s)
- Miroslav Průcha
- Department of Clinical Biochemistry, Haematology and Immunology, Na Homolce Hospital, Prague, Czech Republic.
| | - Ivan Kolombo
- Department of Urology, Third Faculty of Medicine, Charles University in Prague and University Hospital Královské Vinohrady, Prague, Czech Republic
| | - Petr Štádler
- Department of Vascular Surgery, Na Homolce Hospital, Prague, Czech Republic
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98
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Sugimoto M, Watanabe H, Asano T, Sato S, Takagi T, Kobayashi H, Ohira H. Possible participation of IgG4 in the activation of complement in IgG4-related disease with hypocomplementemia. Mod Rheumatol 2015; 26:251-8. [PMID: 26357950 DOI: 10.3109/14397595.2015.1076924] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To investigate which IgG subclasses contribute to the activation of the complement pathway in IgG4-related disease (IgG4RD) patients with hypocomplementemia. METHODS Sera of IgG4RD patients were analyzed for the binding ability of IgG subclasses to complement component 1q (C1q). Polyethylene glycol (PEG) precipitates containing immune complexes (ICs) in sera of IgG4RD patients were analyzed for IgG subclass composition by Western blotting. PEG precipitates containing ICs (PEG-ICs) in sera of patients were also analyzed for their ability to consume complement in normal human serum (NHS) using a total complement hemolytic (CH50) assay and a commercial kit to measure the complement capacity of all three individual complement pathways. RESULTS The C1q binding assay revealed high serum levels of C1q-binding IgG4 in IgG4RD patients with hypocomplementemia. ICs in PEG precipitates were formed with IgG4 in IgG4RD patients, regardless of the presence or absence of hypocomplementemia. We observed a marked reduction of CH50 and reduced complement activity in the classical complement pathway as well as the mannan-binding lectin complement pathway in NHS incubated with PEG-IC isolated from IgG4RD patients with hypocomplementemia. CONCLUSION Our results suggest that IgG4 may participate in the activation of complement in IgG4RD patients with hypocomplementemia.
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Affiliation(s)
- Mitsuru Sugimoto
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Hiroshi Watanabe
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Tomoyuki Asano
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Shuzo Sato
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Tadayuki Takagi
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Hiroko Kobayashi
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
| | - Hiromasa Ohira
- a Department of Gastroenterology and Rheumatology, School of Medicine , Fukushima Medical University , Fukushima , Japan
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99
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Abstract
Hashimoto's thyroiditis (HT) is part of a spectrum of thyroid autoimmune conditions and this review provides an update on the latest developments in the field. HT has a genetic predisposition with a number of immune-related and thyroid-specific genes conferring disease susceptibility. However, disentangling genes with protective and predisposing effect is a complex process that requires further work. The recent increase in the incidence of HT implicates environmental factors in disease pathogenesis including improved hygiene, increased dietary iodine intake, new treatment modalities and chemical agents. Additional unmodifiable predisposing factors include stress, climate, age and gender. Both cellular and humoral immunity play a role in HT pathogenesis. Defects in T regulatory cells and increased activation of follicular helper T cells may have a role in disease initiation/perpetuation. Infiltrating lymphocytes can be directly cytotoxic to thyroid follicular cells (TFC) or may affect cell viability/function indirectly through cytokine production, which alters TFC integrity and modulates their metabolic and immune function. Thyroid peroxidase and thyroglobulin antibodies are present in the majority of HT patients and help with management decisions. Antibodies against the sodium iodide symporter and pendrin are present in a minority with little known about their clinical relevance. In addition to immune cells, recent work has identified DNA fragments, generated following cell death, and micro RNA as potential factors in HT pathogenesis. Despite the large number of studies, the mechanistic pathways in HT are still not fully understood and further work is required to enhance our knowledge and identify novel preventative and therapeutic clinical targets.
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Affiliation(s)
- R A Ajjan
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - A P Weetman
- Department of Human Metabolism, University of Sheffield, Sheffield, UK
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100
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Affiliation(s)
- Kanae Kubo
- Department of Allergy and Rheumatology; The University of Tokyo Hospital; Tokyo Japan
| | - Kazuhiko Yamamoto
- Department of Allergy and Rheumatology; The University of Tokyo Hospital; Tokyo Japan
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