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Miura S, Katayama K, Sugimoto Y, Tanaka F, Mori M, Takahashi D, Saiki R, Hirabayashi Y, Murata T, Tawara I, Dohi K. Discordance of light chain isotypes between serum and glomerular deposits in proliferative glomerulonephritis with monoclonal IgG deposits: a case report and review of the literature. BMC Nephrol 2023; 24:199. [PMID: 37393252 PMCID: PMC10314569 DOI: 10.1186/s12882-023-03256-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/28/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Proliferative glomerulonephritis with monoclonal immunoglobulin G (IgG) deposits (PGNMID) is a disease entity with nonorganized granular glomerular deposition with monoclonal proteins of both heavy and light chains. Dysproteinemia was observed in only 30% of the patients with PGNMID. We herein report a case of PGNMID with discrepancy between serum and glomerular deposits. CASE PRESENTATION The patient was a 50-year-old man who had been followed at a local clinic due to hypertension, type 2 diabetes, hyperlipidemia, hyperuricemia, fatty liver, and obesity. Proteinuria had been noted five years previously, and he had been referred to a hematology department due to hyperproteinemia, high gamma globulin, and κ Bence-Jones protein (BJP) positivity one year previously. Bone marrow aspiration showed 5% plasma cells, and he was referred to the nephrology department to evaluate persistent proteinuria. He was hypertensive, and his estimated glomerular filtration rate was 54.2 ml/min/1.73 m2. His urinary protein level was 0.84 g/g⋅Cr. Urine and serum immunofixation showed BJP-κ type and IgG-κ type, respectively. Kidney biopsy showed an increase in mesangial cells and matrix without nodular lesions under a light microscope. Immunofluorescence microscopy showed granular deposits of IgG and C3 on the capillary wall and weak positivity for C1q. IgG3 was predominant among the IgG subclasses, and intraglomerular κ and λ staining was negative for κ and positive for λ. Direct fast scarlet staining was negative. Electron microscopy showed lumpy deposits without a fibrillar structure in the subepithelial area. Based on the above findings, a diagnosis of membranous nephropathy-type PGNMID was made. Since proteinuria increased gradually after three years of treatment with valsartan (40 mg, daily), oral prednisolone (30 mg, daily) was initiated, which led to decreased proteinuria. The dose of oral prednisolone was gradually tapered to 10 mg per day. At that time, proteinuria was 0.88 g/g⋅Cr. We found 204 cases in 81 articles in the PubMed database, among which 8 showed discrepancy in the heavy and/or light chains between serum and kidney. CONCLUSIONS We experienced a case of membranous nephropathy-type PGNMID with discrepancy in light chains between serum and kidney that was successfully treated with oral prednisolone.
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Affiliation(s)
- Shoko Miura
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Kan Katayama
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Yuka Sugimoto
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Fumika Tanaka
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Mutsuki Mori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Daisuke Takahashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Ryosuke Saiki
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Yosuke Hirabayashi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Tomohiro Murata
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507 Japan
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Ito D, Shiozaki Y, Shimizu Y, Suzuki Y, Takeda A, Misaki T. A rare case of proliferative glomerulonephritis with monoclonal IgG2 kappa deposit: a case report. BMC Nephrol 2022; 23:396. [PMID: 36494791 PMCID: PMC9733083 DOI: 10.1186/s12882-022-03029-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Proliferative glomerulonephritis with monoclonal immunoglobulin G (IgG) deposits (PGNMID) is a rare monoclonal gammopathy of renal significance with dense deposits of monoclonal immunoglobulin. CASE PRESENTATION We report a 78-year-old Japanese male patient with mild proteinuria and lower extremity edema. Monoclonal immunoglobulin could not be identified in his serum or urine. Although his bone marrow biopsy was negative, renal biopsy found features of membranoproliferative glomerulonephritis (MPGN) with deposition of monoclonal IgG2 kappa. Electron microscopy examination revealed non-organized electron-dense deposits in the subepithelial, and subendothelial mesangial regions. Steroid monotherapy was performed after diagnosis of PGNMID but complete remission was not achieved. CONCLUSION PGNMID with IgG3 kappa deposits is the most common in cases with the histological feature of MPGN. There are few cases of PGNMID with IgG2 kappa deposits exhibiting MPGN. This report describes a very rare case of PGNMID with the histological feature of MPGN.
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Affiliation(s)
- Daisuke Ito
- grid.415466.40000 0004 0377 8408Division of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Yuriko Shiozaki
- grid.415466.40000 0004 0377 8408Division of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Yoshitaka Shimizu
- grid.415466.40000 0004 0377 8408Division of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Yumiko Suzuki
- grid.415466.40000 0004 0377 8408Division of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Asami Takeda
- Division of Nephrology, Japanese Red Cross Aichi Medical Center, Nagoya Daini Hospital, Nagoya, Aichi Japan
| | - Taro Misaki
- grid.415466.40000 0004 0377 8408Division of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
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Ogura Y, Yabushita S, Aihara H, Tsukada H, Hashiba T, Furuse S, Fujii A, Ueda Y, Mise N. A case of proliferative glomerulonephritis with monoclonal IgG deposits (PGNMID) that responded favorably to steroid therapy. CEN Case Rep 2022; 11:208-215. [PMID: 34628583 PMCID: PMC9061924 DOI: 10.1007/s13730-021-00653-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/28/2021] [Indexed: 10/20/2022] Open
Abstract
Proliferative glomerulonephritis with monoclonal immunoglobulin deposits (PGNMID) generally has a poor prognosis and the consensus is that it needs to be treated with clone-directed therapy. However, the prognosis of PGNMID is heterogenous and some cases have been successfully treated using other therapeutic strategies. We herein report a case of PGNMID that responded favorably to steroids without clone-directed therapy. An 18-year-old woman was referred to a nephrologist with proteinuria detected in an annual health check-up. Over a 3-year period, the concentration of creatinine (Cr) increased from 0.76 to 1.00 mg/dL and proteinuria from 0.35 to 1.9 g/g Cr. Monoclonal gammopathies were not detected in her serum or urine. Based on the findings of kidney biopsy at the age of 21 years, the patient was diagnosed with proliferative glomerulonephritis with monoclonal IgG1-kappa deposits. The histological feature was mesangial proliferative glomerulonephritis with advanced glomerulosclerosis, which is a rare presentation of PGNMID. Intravenous methylprednisolone pulse therapy was initiated, followed by oral prednisolone at a dose of 30 mg daily. One year later, a second kidney biopsy revealed a significant decrease in mesangial deposits of IgG1-kappa. Prednisolone was gradually tapered and discontinued 2 years after the first kidney biopsy. At the time of prednisolone withdrawal, urinalysis showed proteinuria of 0.2 g/g Cr without hematuria. Kidney function remained stable throughout the treatment period.
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Affiliation(s)
- Yoshiyasu Ogura
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Sayaka Yabushita
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Hideki Aihara
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Hiroyuki Tsukada
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Toyohiro Hashiba
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Satoshi Furuse
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Akiko Fujii
- Department of Pathology, Saitama Medical Center, Dokkyo Medical University, 2-1-50 Minamikoshigaya, Koshigaya city, Saitama, 343-8555, Japan
| | - Yoshihiko Ueda
- Department of Pathology, Saitama Medical Center, Dokkyo Medical University, 2-1-50 Minamikoshigaya, Koshigaya city, Saitama, 343-8555, Japan
| | - Naobumi Mise
- Department of Nephrology, Division of Internal Medicine, Mitsui Memorial Hospital, 1 Kanda-izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan.
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Nomura K, Miyatake N, Okada K, Hayashi N, Fujimoto K, Adachi H, Furuichi K, Shimizu A, Yokoyama H. Steroid-sensitive recurrent mesangial proliferative glomerulonephritis with monoclonal IgG deposits. CEN Case Rep 2021; 10:308-313. [PMID: 33398782 DOI: 10.1007/s13730-020-00562-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 12/04/2020] [Indexed: 11/29/2022] Open
Abstract
Proliferative glomerulonephritis with monoclonal immunoglobulin G (IgG) deposits (PGNMID) is a rare kidney disease. The predominant pathological finding of PGNMID is the presence of monoclonal Ig deposits on the glomerular basement membrane (GBM). However, there is some variation in deposition pattern in this kidney disease. We report a case of steroid-sensitive recurrent mesangial proliferative type of PGNMID. A 40-year-old female noticed lower leg pitting edema and polyuria. Approximately 10 days prior to the first clinic visit, she was diagnosed with nephrotic syndrome based on the laboratory data of urine and blood. Immunological and hematological examination revealed no abnormality. However, kidney biopsy specimens showed mild mesangial cell proliferation and mesangial matrix accumulation on light microscopic findings. Regarding immunofluorescence staining, granular deposits of IgG, C1q, and β1c were observed on GBM and mesangial area. Granular deposits of IgG3 and λ were also observed on GBM and mesangial area. Moreover, negative results were obtained for the phospholipase A2 receptor antibody and thrombospondin type-1 domain-containing 7A. Electron microscopy revealed highly electron dense deposits mainly in the mesangial region. Kidney biopsy showed mesangial proliferative glomerulonephritis characterized by monoclonal Ig deposition of IgG3/λ. Steroid therapy was initiated, and complete remission was achieved on day 36. After the discontinuation of steroid therapy, proteinuria recurred and second kidney biopsy findings were almost similar to the first biopsy. However, complete remission was achieved with steroid therapy. This is a rare recurrent case of steroid-sensitive PGNMID. The pathological feature of this case was mesangial proliferative glomerulonephritis with Ig deposition of IgG3/λ.
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Affiliation(s)
- Kazutoshi Nomura
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Nobuhiko Miyatake
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Keiichiro Okada
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Norifumi Hayashi
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Keiji Fujimoto
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Hiroki Adachi
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Kengo Furuichi
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Hitoshi Yokoyama
- Department of Nephrology, School of Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan.
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Zuo C, Zhu Y, Xu G. An update to the pathogenesis for monoclonal gammopathy of renal significance. Crit Rev Oncol Hematol 2020; 149:102926. [PMID: 32199132 DOI: 10.1016/j.critrevonc.2020.102926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 12/20/2019] [Accepted: 03/02/2020] [Indexed: 11/24/2022] Open
Abstract
Monoclonal gammopathy of renal significance (MGRS) is characterized by the nephrotoxic monoclonal immunoglobulin (MIg) secreted by an otherwise asymptomatic or indolent B-cell or plasma cell clone, without hematologic criteria for treatment. The spectrum of MGRS-associated disorders is wide, including non-organized deposits or inclusions such as C3 glomerulopathy with monoclonal glomerulopathy (MIg-C3G), monoclonal immunoglobulin deposition disease, proliferative glomerulonephritis with monoclonal immunoglobulin deposits and organized deposits like immunoglobulin related amyloidosis, type I and type II cryoglobulinaemic glomerulonephritis, light chain proximal tubulopathy, and so on. Kidney biopsy should be conducted to identify the exact disease associated with MGRS. These MGRS-associated diseases can involve one or more renal compartments, including glomeruli, tubules and vessels. Hydrophobic residues replacement, N-glycosylated, increase in isoelectric point in MIg causes it to transform from soluble form to tissue deposition, causing glomerular damage. Complement deposition is found in MIg-C3G, which is caused by an abnormality of the alternative pathway and may involve multiple factors including complement component 3 nephritic factor, anti-complement factor auto-antibodies or MIg which directly cleaves C3. The effect of transforming growth factor beta and platelet-derived growth factor-β on mesangial extracellular matrix is associated with glomerular and tubular basement membrane thickening, nodular glomerulosclerosis, and interstitial fibrosis. Furthermore, inflammatory factors, growth factors and virus infection may play an important role in the development of the diseases. In this review, for the first time, we discussed current highlights in the mechanism of MGRS-related lesions.
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Affiliation(s)
- Chao Zuo
- Department of Nephrology, the Second Affiliated Hospital of Nanchang University, Nanchang, China; Grade 2016, the Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Yuge Zhu
- Grade 2016, the First Clinical Medical College of Nanchang University, Nanchang, China
| | - Gaosi Xu
- Department of Nephrology, the Second Affiliated Hospital of Nanchang University, Nanchang, China.
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6
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An update to the pathogenesis for monoclonal gammopathy of renal significance. Ann Hematol 2020; 99:703-714. [PMID: 32103323 DOI: 10.1007/s00277-020-03971-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 02/18/2020] [Indexed: 01/16/2023]
Abstract
Monoclonal gammopathy of renal significance (MGRS) is characterized by the nephrotoxic monoclonal immunoglobulin secreted by an otherwise asymptomatic or indolent B cell or plasma cell clone, without hematologic criteria for treatment. These MGRS-associated diseases can involve one or more renal compartments, including glomeruli, tubules, and vessels. Hydrophobic residue replacement, N-glycosylated, increase in isoelectric point in monoclonal immunoglobulin (MIg) causes it to transform from soluble form to tissue deposition, and consequently resulting in glomerular damage. In addition to MIg deposition, complement deposition is also found in C3 glomerulopathy with monoclonal glomerulopathy, which is caused by an abnormality of the alternative pathway and may involve multiple factors including complement component 3 nephritic factor, anti-complement factor auto-antibodies, or MIg which directly cleaves C3. Furthermore, inflammatory factors, growth factors, and virus infection may also participate in the development of the diseases. In this review, for the first time, we discussed current highlights in the mechanism of MGRS-related lesions.
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Bridoux F, Javaugue V, Nasr SH, Leung N. Proliferative glomerulonephritis with monoclonal immunoglobulin deposits: a nephrologist perspective. Nephrol Dial Transplant 2019; 36:208-215. [DOI: 10.1093/ndt/gfz176] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/26/2019] [Indexed: 11/14/2022] Open
Abstract
Abstract
Proliferative glomerulonephritis (GN) with monoclonal immunoglobulin deposits (PGNMIDs) is a recently described entity among the spectrum of monoclonal gammopathy of renal significance (MGRS). The disease is renal limited and manifests with chronic glomerular disease, altered renal function and albuminuria, sometimes in the nephrotic range. Acute nephritic syndrome is rare. PGNMID occurs mostly in the sixth decade, but it may affect young adults. Histologically, PGNMID is characterized predominantly by membranoproliferative GN and less frequently by diffuse endocapillary GN, mesangioproliferative GN or atypical membranous GN. Immunofluorescence and electron microscopic studies are the cornerstone of diagnosis, showing granular deposits involving glomeruli only, and composed of monotypic immunoglobulin G (IgG), with a single heavy chain subclass (most commonly IgG3) and light chain (LC) restriction (usually κ), admixed with complement deposits. PGNMID variants with monotypic LC-only, IgA or IgM deposits are uncommon. Ultrastructurally, deposits are amorphous with predominant subendothelial and mesangial distribution. PGNMID should be distinguished from type 1 cryoglobulinemic GN and immunotactoid GN, which share some common pathological features. Contrary to other MGRS lesions, the rate of detection of the nephrotoxic monoclonal Ig in the serum or urine, and of an abnormal bone marrow B-cell clone, is only ∼30%. Renal prognosis is poor, with progression to end-stage renal disease in 25% of patients within 30 months and frequent early recurrence on the renal allograft. The pathophysiology of PGNMID is unclear and its treatment remains challenging. However, recent studies indicate that clone-targeted chemotherapy may significantly improve renal outcomes, opening future perspectives for the management of this rare disease.
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Affiliation(s)
- Frank Bridoux
- Department of Nephrology, Centre de Référence Maladies Rares « Amylose AL et autres maladies par dépôts d’immunoglobulines monoclonales », Centre Hospitalier Universitaire et Université de Poitiers, Poitiers, and CNRS UMR 7276-INSERM 1262, Limoges, France
| | - Vincent Javaugue
- Department of Nephrology, Centre de Référence Maladies Rares « Amylose AL et autres maladies par dépôts d’immunoglobulines monoclonales », Centre Hospitalier Universitaire et Université de Poitiers, Poitiers, and CNRS UMR 7276-INSERM 1262, Limoges, France
| | - Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Nelson Leung
- Division of Nephrology and Hypertension and Division of Hematology, Mayo Clinic, Rochester, MN, USA
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8
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Kitazawa A, Koda R, Yoshino A, Ueda Y, Takeda T. An IgA1-lambda-type monoclonal immunoglobulin deposition disease associated with membranous features in a patient with IgG4-related kidney disease: a case report. BMC Nephrol 2018; 19:330. [PMID: 30458736 PMCID: PMC6245818 DOI: 10.1186/s12882-018-1133-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 11/06/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND IgG4-related disease (IgG4-RD) is a newly recognized fibroinflammatory condition. The kidney is one of the organs commonly affected by IgG4-RD. Tubulointerstitial nephritis (TIN) is the main feature, and membranous nephropathy (MN) has also been described frequently. In MN, polyclonal immunoglobulins and complements are deposited in granular form along the glomerular basement membranes (GBMs). Unusual cases of monoclonal immunoglobulin deposition disease (MIDD) associated with membranous features have been reported. MIDD is morphologically similar to MN but contains immunoglobulins considered to be derived from single B-cell clone. CASE PRESENTATION We describe a 65-year-old man who was referred to our hospital because of hyperproteinaemia, eosinophilia, anaemia, and proteinuria. A renal biopsy demonstrated infiltration of plasma cells and eosinophils in the interstitium, and the ratio of IgG4-positive plasma cells to IgG-positive plasma cells was 55%. The patient was diagnosed as having IgG4-related TIN. Periodic acid methenamine silver staining under light microscopy revealed a bubbling appearance and spike formation in the GBM. On immunofluorescence, the expression of IgG and complements was negative; however, IgA was positively expressed in a granular pattern along the GBM. An IgA subclass analysis revealed a significant deposition of IgA1-lambda (IgA1-λ). Electron microscopy revealed irregular and small non-organized and non-Randall-type granular electron-dense deposits in the GBM that were shaped like snow leopard spots. CONCLUSIONS After corticosteroid therapy was initiated, the patient's eosinophilia remarkably improved and his serum creatinine, IgG, and IgG4 levels decreased to within the normal ranges. However, massive proteinuria persisted. To our knowledge, this is the first reported case of IgG4-related TIN associated with IgA1-λ-type MIDD with membranous features.
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Affiliation(s)
- Atsushi Kitazawa
- Department of Nephrology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan. .,Department of Pathology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan.
| | - Ryo Koda
- Department of Nephrology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan
| | - Atsunori Yoshino
- Department of Nephrology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan
| | - Yoshihiko Ueda
- Department of Pathology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan
| | - Tetsuro Takeda
- Department of Nephrology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, Saitama, 343-8555, Japan
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9
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Concurrent isolated IgG2-positive membranous nephropathy and malignant B-cell lymphoma. CEN Case Rep 2018; 7:248-252. [PMID: 29766466 DOI: 10.1007/s13730-018-0336-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 05/10/2018] [Indexed: 10/16/2022] Open
Abstract
A recent systematic review showed that hematological malignancy is often complicated by membranous nephropathy (MN). Histologically, the deposition of IgG subclasses other than IgG4 may imply secondary MN, such as malignancy-associated MN (M-MN). We describe a very rare case of concurrent isolated IgG2-positive MN and B-cell lymphoma. An 83-year-old woman was hospitalized at our institute for facial and lower extremity edema persisting for 2 months. Laboratory tests showed urinary protein level of 10.8 g/day, serum albumin level of 1.6 g/dl, and serum creatinine level of 2.34 mg/dl. Soon after diagnosis of nephrotic syndrome, treatment with corticosteroid was initiated, but it proved to be ineffective. Renal biopsy showed isolated IgG2-positive MN with highly infiltrated CD20-positive lymphoid cells in the kidney. Computed tomography revealed systemic lymphadenopathy, and aberrant B-cells with immunoglobulin light chain restriction were detected in peripheral blood and bone marrow, which led to the diagnosis of mature B-cell lymphoma. Although rituximab (375 mg/m2/week) was administered, the patient suddenly died from gastrointestinal bleeding on day 40 of hospitalization. It is, thus, necessary to consider hematological malignancy when a diagnosis of MN is made. Further studies are expected to elucidate the pathogenesis and to help establish the adequate treatment for this rare situation.
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10
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Panezai MA, Zhang P, Colbert GB. Proliferative glomerulonephritis with monoclonal immunoglobulin deposits of lambda chains. Proc (Bayl Univ Med Cent) 2018; 31:187-188. [PMID: 29706814 DOI: 10.1080/08998280.2018.1435116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/11/2017] [Accepted: 12/18/2017] [Indexed: 10/17/2022] Open
Abstract
Increasingly, monoclonal gammopathies of renal significance (MGRS) are being described as unique, distinct disease states. We describe a type of MGRS with proliferative glomerular lesions with monoclonal immunoglobulin deposits of rarely reported IgG2 lambda chains.
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Affiliation(s)
- Muhammad A Panezai
- Department of Internal Medicine, Baylor University Medical Center, Dallas, Texas
| | - Pingchaun Zhang
- Department of Pathology, Baylor University Medical Center, Dallas, Texas
| | - Gates B Colbert
- Department of Internal Medicine, Baylor University Medical Center, Dallas, Texas
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11
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Merhi B, Patel N, Bayliss G, Henriksen KJ, Gohh R. Proliferative glomerulonephritis with monoclonal IgG deposits in two kidney allografts successfully treated with rituximab. Clin Kidney J 2017; 10:405-410. [PMID: 28616219 PMCID: PMC5466084 DOI: 10.1093/ckj/sfx001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/29/2016] [Indexed: 01/20/2023] Open
Abstract
Proliferative glomerulonephritis with monoclonal immunoglobulin G deposit (PGNMID), a recently described pathologic entity in native kidneys, has been recognized in kidney transplant patients, where it can present as either recurrent or de novo disease. There is no definitive treatment to date, in either population. Here, we present two cases of PGNMID in kidney allografts that illustrate the challenges of diagnostic approach and highlight the allograft outcome after treatment with rituximab as a potential treatment of this condition.
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Affiliation(s)
- Basma Merhi
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Providence, RI, USA.,Alpert Medical School, Brown University, Providence, RI, USA
| | | | - George Bayliss
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Providence, RI, USA.,Alpert Medical School, Brown University, Providence, RI, USA
| | | | - Reginald Gohh
- Division of Kidney Disease and Hypertension, Department of Medicine, Rhode Island Hospital, Providence, RI, USA.,Alpert Medical School, Brown University, Providence, RI, USA
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Fatima R, Jha R, Gowrishankar S, Narayen G, Rao BS. Proliferative glomerulonephritis associated with monoclonal immune deposits: A case report and review of literature. Indian J Nephrol 2014; 24:376-9. [PMID: 25484532 PMCID: PMC4244718 DOI: 10.4103/0971-4065.133012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Proliferative glomerulonephritis with monoclonal IgG deposits (PGNMID) is a newly recognized entity caused by monoclonal deposition of IgG. PGNMID resembles immune complex glomerulonephritis (GN) on light and electron microscopy. The monotypic immunoglobulin deposits seen on immunofluorescence (IF) clinches the diagnosis. We report a case of proliferative GN associated MGRS and review the relevant literature. The patient had significant proteinuria and elevated serum creatinine. The renal biopsy showed proliferative GN with focal crescents and monoclonal immune deposits confirming a diagnosis of PGNMID. Serum work up showed no monoclonal proteins. Proliferative GN as a manifestation of a monoclonal gammopathy needs to be borne in mind especially in renal biopsies of older patients.
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Affiliation(s)
- R Fatima
- Department of Nephrology, Medwin Hospital, Nampally, Hyderabad, Andhra Pradesh, India
| | - R Jha
- Department of Nephrology, Medwin Hospital, Nampally, Hyderabad, Andhra Pradesh, India
| | - S Gowrishankar
- Department of Histopathology, Apollo Hospitals, Hyderabad, Andhra Pradesh, India
| | - G Narayen
- Department of Nephrology, Medwin Hospital, Nampally, Hyderabad, Andhra Pradesh, India
| | - B S Rao
- Department of Nephrology, Medwin Hospital, Nampally, Hyderabad, Andhra Pradesh, India
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