scholarly journals IgG4-Related Tubulointerstitial Nephritis Associated with Membranous Nephropathy in Two Patients: Remission after Administering a Combination of Steroid and Mizoribine

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Kana N. Miyata ◽  
Hiromi Kihira ◽  
Manabu Haneda ◽  
Yasuhide Nishio
Keyword(s):  
Renal Biopsy ◽  
Membranous Nephropathy ◽  
Plasma Cells ◽  
Tubulointerstitial Nephritis ◽  
High Serum ◽  
Immunoglobulin G4 ◽  
Japanese Men ◽  
Renal Lesions ◽  
Igg4 Related Disease ◽  
Prednisolone Treatment

We report two cases of Japanese men who presented with proteinuria, eosinophilia, hypocomplementemia, and high serum immunoglobulin G4 (IgG4) concentration and were diagnosed with membranous nephropathy associated with IgG4-related tubulointerstitial nephritis on renal biopsy. The typical renal lesions of IgG4-related disease are tubulointerstitial nephritis, which improves remarkably with steroid therapy, and occasional glomerular changes. In our two cases, renal biopsy revealed IgG4-positive immune complex deposits in glomeruli in a pattern of membranous nephropathy and concurrent tubulointerstitial nephritis with IgG4 plasma cells. In both cases, proteinuria persisted with initial prednisolone treatment and was resolved only after the addition of mizoribine. We report the first two cases in which the combination of prednisolone and mizoribine was effective for treating membranous nephropathy associated with IgG4-related tubulointerstitial nephritis.

scholarly journals PLA2R-Negative Membranous Nephropathy Presenting as a Prodrome of IgG4-Related Autoimmune Pancreatitis

2019 ◽  
Vol 9 (2) ◽  
pp. 85-91
Author(s):  
Magdalini Velegraki ◽  
Kostas G. Stylianou ◽  
Dimitrios Xydakis ◽  
Hariklia Gakiopoulou ◽  
Evangelos Voudoukis ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Autoimmune Pancreatitis ◽  
Membranous Nephropathy ◽  
Tubulointerstitial Nephritis ◽  
Pathological Feature ◽  
Immunoglobulin G4 ◽  
Related Disease ◽  
Igg4 Related Disease ◽  
Phospholipase A2 Receptor ◽  
History Of

Membranous nephropathy (MN) with tubulointerstitial nephritis (TIN) is an established manifestation of immunoglobulin G4 (IgG4)-related disease (IgG4-RD). A pathological feature aiming to distinguish between primary and secondary MN is the presence or absence of glomerular staining for phospholipase A2 receptor (PLA2R), respectively. Isolated MN without TIN has been rarely reported in the context of IgG4-RD. This case report describes a patient with a history of MN successfully treated with steroids and cyclophosphamide, who, 3 years later, presented with unexplained exacerbation of diabetes mellitus due to IgG4-related autoimmune pancreatitis. Pancreatitis was treated, and diabetes improved after treatment with steroids. Based on the presence of isolated IgG4 glomerular capillary deposits along with negative staining for PLA2R and the metachronous appearance of autoimmune pancreatitis, MN was retrospectively classified as secondary to IgG4-RD. Isolated IgG4-positive/PLA2R-negative MN without TIN can be a prodrome of IgG4-RD, reminiscent of MN secondary to neoplasms.

IgG4-related tubulointerstitial nephritis

2021 ◽  
Vol 14 (11) ◽  
pp. e241942
Author(s):  
Tasnim Momoniat ◽  
Deepa Jacob ◽  
Neelaveni Duhli ◽  
Tom Jorna
Keyword(s):  
Plasma Cells ◽  
Tubulointerstitial Nephritis ◽  
Epigastric Pain ◽  
Kidney Injury ◽  
Total Serum Protein ◽  
Total Serum ◽  
Immunoglobulin G4 ◽  
Igg4 Related Disease ◽  
History Of ◽  
Steroid Sensitive

A 67-year-old man was referred to the renal team following an episode of acute kidney injury on a background of chronic kidney disease. He had a 9-year history of steroid-sensitive arthritis, epigastric pain and isolated submandibular gland enlargement. He was noted to have a raised eosinophil count, total serum protein and total immunoglobulin G4 (IgG4) level as well as a serum hypocomplementaemia. A renal biopsy showed a tubulointerstitial nephritis with lymphoplasmacytic infiltrates, fibrosis and IgG4-positive plasma cells on immunohistochemistry. A diagnosis of IgG4-related disease was made based on clinical presentation and pathology. Renal function improved with glucocorticoids and the patient was successfully transitioned to azathioprine as a steroid-sparing agent.

scholarly journals IgG4-Related Disease Is Not Associated with Antibody to the Phospholipase A2 Receptor

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Arezou Khosroshahi ◽  
Rivka Ayalon ◽  
Laurence H. Beck ◽  
David J. Salant ◽  
Donald B. Bloch ◽  
...  
Keyword(s):  
Phospholipase A2 ◽  
Membranous Nephropathy ◽  
Plasma Cells ◽  
Tubulointerstitial Nephritis ◽  
Renal Involvement ◽  
Common Antigen ◽  
Related Disease ◽  
Definite Relationship ◽  
Igg4 Related Disease ◽  
Phospholipase A2 Receptor

Patients with IgG4-related disease (IgG4-RD) share histopathological characteristics that are similar across affected organs. The finding of infiltration with IgG4+ plasma cells in the proper clinical and histopathological contexts connects a large number of clinical entities that were viewed previously as separate conditions. The renal involvement in IgG4-RD is usually characterized by tubulointerstitial nephritis, but membranous nephropathy has also been reported to be one of the renal complications of IgG4-RD. The recent discovery that a high proportion of patients with idiopathic membranous nephropathy (IMN) have IgG4 autoantibodies to the M-type phospholipase A2 receptor (PLA2R) in the circulation and glomerular immune deposits, together with the profound IgG4 hypergammaglobulinemia and occasional reports of membranous nephropathy in IgG4-RD, raised the question of a common antigen. To assess the presence of anti-PLA2R antibody in patients with IgG4-RD, we screened sera from 28 IgG4-RD patients by immunoblot. None of the patients in this cohort had detectable circulating anti-PLA2R antibodies. This study suggests that despite some clinical and serological overlaps between IgG4-RD and IMN,anti-PLA2R antibodies do not play a role in the pathogenesis of IgG4-RD. Additional studies of IgG4-RD with evidence of membranous nephropathy are important to exclude any definite relationship.

scholarly journals Multiple Artery Aneurysms: Unusual Presentation of IgG4 Vasculopathy

2021 ◽  
Vol 11 ◽  
pp. 17
Author(s):  
Anurag Yadav ◽  
Geetha Godasu ◽  
Tarvinder Bir Singh Buxi ◽  
Swapnil Sheth
Keyword(s):  
Plasma Cells ◽  
Systemic Disease ◽  
Artery Aneurysm ◽  
High Serum ◽  
Immunoglobulin G4 ◽  
Atypical Chest Pain ◽  
Igg4 Related Disease ◽  
Target Organs ◽  
Serum Igg4 ◽  
Giant Coronary Artery Aneurysm

Immunoglobulin G4 (IgG4)-related disease is a chronic systemic disease. It is characterized by inflammatory fibrosis and high serum IgG4 levels. IgG4-positive plasma cells infiltrate target organs in this disease. It may involve the pancreas, biliary tract, lacrimal glands, salivary glands, orbits, thyroid, kidneys, lymph nodes, or retroperitoneum. It may present as vasculitis with involvement of large to medium sized vessels such as the aorta, the common iliac, carotid, and coronary arteries. We present a case of 55-year-old male patient who presented with shortness of breath on exertion and atypical chest pain. On CT angiography, a giant coronary artery aneurysm involving the left anterior descending artery, multiple visceral and intercostal artery aneurysms, and nodular paravertebral soft-tissue thickening secondary to IgG4 vasculopathy.

scholarly journals Sudden Cardiac Death Due to Coronary Artery Involvement by IgG4-Related Disease: A Rare, Serious Complication of a Rare Disease

2014 ◽  
Vol 138 (6) ◽  
pp. 833-836 ◽  
Author(s):  
Nimesh R. Patel ◽  
Mary L. Anzalone ◽  
L. Maximilian Buja ◽  
M. Tarek Elghetany
Keyword(s):  
Sudden Cardiac Death ◽  
Coronary Arteries ◽  
Cardiac Death ◽  
Plasma Cells ◽  
Severe Stenosis ◽  
Immunoglobulin G4 ◽  
Emergency Center ◽  
Related Disease ◽  
Igg4 Related Disease ◽  
Systemic Disorder

Immunoglobulin G4–related disease (IgG4-RD) is a systemic disorder characterized by multiorgan fibrosis with IgG4-producing plasma cells, increased IgG4 serum concentration, and responsiveness to steroid therapy. Involvement of the pancreas, salivary glands, orbit, aorta, and other sites has been well documented in the literature; however, there have been limited reports of cases involving the coronary arteries. We report the case of a 53-year-old Hispanic man who was brought to the emergency center and diagnosed with sudden cardiac death. Autopsy was subsequently performed, revealing multiorgan involvement by IgG4-RD, including involvement of the coronary arteries. The inflammation and fibrosis, in combination with concomitant atherosclerotic disease, resulted in severe stenosis of the coronary arteries. Two of the coronary arteries were further occluded by thrombosis. These factors led to cardiac hypoperfusion, myocardial infarction and, ultimately, sudden cardiac death. Fatal involvement of the coronary arteries has not been previously reported, raising a new concern for a severe complication of IgG4-RD.

scholarly journals Immunoglobulin G4-related sclerosing cholangitis mimicking cholangiocarcinoma: a case report and literature review

2020 ◽  
Vol 48 (10) ◽  
pp. 030006052095921
Author(s):  
Cheng Xu ◽  
Yongmei Han
Keyword(s):  
Sclerosing Cholangitis ◽  
Plasma Cells ◽  
Elevated Serum ◽  
Clinical Manifestations ◽  
Immunoglobulin G4 ◽  
Igg4 Related Disease ◽  
Serum Igg4 ◽  
History Of ◽  
The Common

Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a novel clinical disease that is characterized by elevated serum IgG4 concentrations and tumefaction or tissue infiltrated by IgG4+ plasma cells. The clinical manifestations of IgG4-RD depend on the type of tissues affected. IgG4-related sclerosing cholangitis is a type of IgG4-RD. We report a patient who initially visited a local hospital with a 5-month history of jaundice. He was found to have a mass in the upper part of the common bile duct that mimicked cholangiocarcinoma. He underwent surgery in our hospital and was later diagnosed with IgG4-related sclerosing cholangitis. We administered prednisolone 40 mg once a day for treatment. Taking into account the possible side effects of moderate-dose hormone therapy, we also administered teprenone, potassium chloride, and calcium carbonate. The patient did not have any recurrence of symptoms or adverse drug reactions during follow-up.

scholarly journals Eosinophilic Angiocentric Fibrosis: A Review and Update of Its Association With Immunoglobulin G4–Related Disease

2018 ◽  
Vol 142 (12) ◽  
pp. 1560-1563
Author(s):  
Janice Ahn ◽  
Melina Flanagan
Keyword(s):  
Head And Neck ◽  
Plasma Cells ◽  
Neck Region ◽  
Immunoglobulin G4 ◽  
Head And Neck Region ◽  
Related Disease ◽  
Igg4 Related Disease ◽  
Previous Trauma ◽  
Eosinophilic Angiocentric Fibrosis

Eosinophilic angiocentric fibrosis is a rare indolent lesion of the head and neck region that has characteristic histologic findings of onionskin fibrosis and prominent eosinophils. Its pathogenesis has been poorly understood and has been most commonly attributed to hypersensitivity or previous trauma. Recently, the lesion has been included in the spectrum of immunoglobulin G4 (IgG4)–related disease. However, few of the existing cases of eosinophilic angiocentric fibrosis have been evaluated for IgG4+ and IgG+ plasma cells. Therefore, we provide an update on the clinical and histologic features of eosinophilic angiocentric fibrosis to increase awareness of the entity and encourage its further characterization as an IgG4-related disease.

Membranous glomerulonephritis

2018 ◽  
Author(s):  
Daniel C. Cattran ◽  
Heather N. Reich
Keyword(s):  
Nephrotic Syndrome ◽  
Hepatitis B ◽  
Renal Biopsy ◽  
Clinical Picture ◽  
Membranous Nephropathy ◽  
Membranous Glomerulonephritis ◽  
Hepatitis B Infection ◽  
Immunoglobulin G4 ◽  
Secondary Membranous Nephropathy ◽  
Secondary Causes

Membranous glomerulonephritis (MGN) usually presents as nephrotic syndrome, which may be severe. It is primarily a disease of adults, men more than women, with a peak incidence in the fourth and fifth decades. It is hoped that proven tests for the characteristic anti-PLA2R antibodies of primary MGN may become established, but the diagnosis currently rests on renal biopsy showing characteristic subepithelial granular immune deposits. These usually contain immunoglobulin G4 and complement. Other patterns may suggest secondary causes of MGN. Secondary membranous nephropathy occurs in lupus and some other immune or autoimmune disorders, in hepatitis B infection, after exposure to some drugs or toxins, and in some cancers. Secondary causes are more common at extremes of age, and are often made obvious by the history or clinical picture. How hard to look for malignancy is controversial, but malignancy is much more likely in patients over 60 years, and may be apparent at presentation.

scholarly journals IgG4-Related Sclerosing Cholangitis: Rarely Diagnosed, but not a Rare Disease

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Sylvia Drazilova ◽  
Eduard Veseliny ◽  
Patricia Denisa Lenartova ◽  
Dagmar Drazilova ◽  
Jakub Gazda ◽  
...  
Keyword(s):  
Diagnostic Criteria ◽  
Sclerosing Cholangitis ◽  
Plasma Cells ◽  
Histological Finding ◽  
Good Prognosis ◽  
High Serum ◽  
Obliterative Phlebitis ◽  
Igg4 Related Disease ◽  
Serum Igg4 ◽  
Storiform Fibrosis

IgG4-related sclerosing cholangitis, a biliary manifestation of an IgG4-related disease, belongs to the spectrum of sclerosing cholangiopathies which result in biliary stenosis. It presents with signs of cholestasis and during differential diagnosis it should be distinguished from cholangiocarcinoma or from other forms of sclerosing cholangitis (primary and secondary sclerosing cholangitis). Despite increasing information and recently established diagnostic criteria, IgG4-related sclerosing cholangitis remains underdiagnosed in routine clinical practice. The diagnosis is based on a combination of the clinical picture, laboratory parameters, histological findings, and a cholangiogram. Increased serum IgG4 levels are nonspecific but are indeed a part of the diagnostic criteria proposed by the Japan Biliary Association and the HISORt criteria for IgG4-SC. High serum IgG4 retains clinical utility depending on the magnitude of elevation. Approximately 90% of patients have concomitant autoimmune pancreatitis, while 10% present with isolated biliary involvement only. About 26% of patients have other organ involvement, such as IgG4-related dacryoadenitis/sialadenitis, IgG4-related retroperitoneal fibrosis, or IgG4-related renal lesions. A full-blown histological finding characterized by IgG4-enriched lymphoplasmacytic infiltrates, obliterative phlebitis, and storiform fibrosis is difficult to capture in practice because of its subepithelial localization. However, the histological yield is increased by immunohistochemistry, with evidence of IgG4-positive plasma cells. Based on a cholangiogram, IgG-4 related sclerosing cholangitis is classified into four subtypes according to the localization of stenoses. The first-line treatment is corticosteroids. The aim of the initial treatment is to induce clinical and laboratory remission and cholangiogram normalization. Even though 30% of patients have a recurrent course, in the literature data, there is no consensus on chronic immunosuppressive maintenance therapy. The disease has a good prognosis when diagnosed early.

scholarly journals Localized IgG4-related disease manifested on the tongue: a case report

2021 ◽  
Vol 126 (1) ◽  
Author(s):  
Helya Hashemi ◽  
Andreas Thor ◽  
Erik Hellbacher ◽  
Marie Carlson ◽  
Miklós Gulyás ◽  
...  
Keyword(s):  
Case Report ◽  
Oral Mucosa ◽  
Plasma Cells ◽  
Clinical Manifestations ◽  
Assessment System ◽  
Immunoglobulin G4 ◽  
Related Disease ◽  
Multiple Organs ◽  
Igg4 Related Disease ◽  
Initial Symptoms

Immunoglobulin G4-related disease (IgG4-RD) is an immune-mediated fibroinflammatory condition that can affect multiple organs. IgG4-RD may show a variety of initial symptoms. In the oral mucosa, lesions present as inflammatory fibrosis with a large number of IgG4-positive plasma cells. Evaluating treatment is a well-known problem in IgG4-RD due to the absence of an established assessment system. There are difficulties in defining the severity of the disease, which is why treatment is primarily based on its clinical manifestations. We present a case report of localized IgG4-RD with ulcerative and proliferative manifestations on the tongue, which clinically mimicked oral squamous cell carcinoma. A tumor-like lesion on the tongue can indicate something else other than the malignant or reactive changes commonly found in the oral mucosa. Multiple differential diagnoses of these atypical oral lesions, including localized IgG4-RD, should be considered.

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