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Immunotactoid nephropathy

Sanjeev Sethi, S Vincent Rajkumar, Vivette D D'Agati
Monoclonal gammopathies are characterized by the overproduction of monoclonal Ig (MIg) detectable in the serum or urine resulting from a clonal proliferation of plasma cells or B lymphocytes. The underlying hematologic conditions range from malignant neoplasms of plasma cells or B lymphocytes, including multiple myeloma and B-cell lymphoproliferative disorders, to nonmalignant small clonal proliferations. The term MGUS implies presence of an MIg in the setting of a "benign" hematologic condition without renal or other end organ damage...
April 27, 2018: Journal of the American Society of Nephrology: JASN
Omer Shahab, Pegah Golabi, Zobair M Younossi
Hepatitis C virus (HCV) infection affects many organs in the body, including the liver, kidneys, skin, joints and others. Although the hepatic manifestation of HCV has been widely studied, the extrahepatic manifestaions of HCV have not been fully appreciated. Studies have shown that patients with HCV have a higher risk of chronic kidney disease and end-stage renal disease, as well as poorer outcomes after kidney transplantation. Given these findings, it is important to screen HCV patients for presence of renal impairement in a timely manner...
January 10, 2018: Minerva Gastroenterologica e Dietologica
Olga Balafa, Georgios Liapis
Nodular glomerulosclerosis -as it was originally described by Kimmelstiel and Wilson- is the main pathognomonic lesion of diabetic nephropathy. However, this particular pattern can also be seen in other conditions such as membranoproliferative glomerulonephritis, light or heavy chain deposition disease, amyloidosis, fibrillary and immunotactoid glomerulonephritis and Takayasu's arteritis. History of diabetes as well as other clinical and pathological features are of crucial importance in order to determine the precise cause of nodular glomerulosclerosis...
November 10, 2017: Minerva Medica
Nishad Raveendran, Pankaj Beniwal, Amith Vijay Leon D'Souza, Rajendra Singh Tanwar, Piyush Kimmatkar, Dhananjai Agarwal, Vinay Malhotra
Hepatitis B and C are known to affect kidneys in a number of ways. Glomerular diseases associated with hepatitis B and C include membranous nephropathy (MN), membranoproliferative glomerulonephritis (MPGN), focal segmental glomerulosclerosis, immunoglobulin A nephropathy, rarely amyloidosis, and fibrillary and immunotactoid glomerulopathy. In a retrospective analysis of kidney biopsy of 534 patients, we found 16 (2.9%) patients of hepatitis B and 11 (2.05%) patients of hepatitis C with glomerular disease. The most common form of glomerulonephritis in hepatitis B patient was MN and in hepatitis C patient was MPGN...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
Carole Philipponnet, Jean-Louis Kemeny, Cyril Garrouste, Martin Soubrier, Anne-Elisabeth Heng
Monoclonal gammopathy of renal significance (MGRS) can manifest in many different ways depending on the nature of the immunoglobulin and its physicochemical properties. MGRS can lead to the discovery of a hematological malignancy. We report the case of a 32-year-old female patient who underwent renal biopsy on account of an impure nephrotic syndrome associated with immunoglobulin (Ig)G κ monoclonal gammopathy. Histological analysis revealed membranoproliferative glomerulonephritis with IgG, IgM, κ, λ, and C3 deposits...
June 2017: Clinical Nephrology
Olga Balafa, Georgios Liapis, Paraskevi Pavlakou, Georgios Baltatzis, Rigas Kalaitzidis, Moses Elisaf
Kimmelstiel and Wilson originally described nodular glomerulosclerosis as the pathognomonic lesion of diabetic nephropathy. Nevertheless, nodular glomerulosclerosis pattern can rarely occur in non-diabetic patients. In such cases, the differential diagnosis includes membranoproliferative glomerulonephritis, light or heavy chain deposition disease, amyloidosis, fibrillary and immunotactoid glomerulonephritis and chronic hypoxic or ischemic conditions. In cases that the above entities cannot be proven, the term idiopathic nodular glomerulosclerosis is given...
December 2016: Pathology, Research and Practice
Mona Doshi, Amit Lahoti, Farhad R Danesh, Vecihi Batuman, Paul W Sanders
Disorders of plasma and B cells leading to paraproteinemias are associated with a variety of renal diseases. Understanding the mechanisms of injury and associated nephropathies provides a framework that aids clinicians in prompt diagnosis and appropriate adjunctive treatment of these disorders. Glomerular diseases that may be associated with paraproteinemias include amyloid deposition, monoclonal Ig deposition disease, proliferative GN with monoclonal Ig deposits, C3 glomerulopathy caused by alterations in the complement pathway, immunotactoid glomerulopathy, fibrillary GN, and cryoglobulinemia...
December 7, 2016: Clinical Journal of the American Society of Nephrology: CJASN
S Chandragiri, S Raju, K K Mukku, S Babu, M S Uppin
Nodular glomerulosclerosis, a pathological finding characterized by areas of marked mesangial expansion with accentuated glomerular nodularity can be seen in a number of conditions including diabetic nephropathy, amyloidosis, light chain deposition disease, fibrillary and immunotactoid glomerulopathy, collagen type III disease, nodular membranoproliferative glomerulonephritis, and Takayasu's arteritis. Idiopathic nodular glomerulosclerosis is a diagnosis of exclusion and is reported in patients with hypertension, smoking, chronic obstructive pulmonary disease, obesity, metabolic syndrome, etc...
March 2016: Indian Journal of Nephrology
Sanjeev Sethi, Fernando C Fervenza, S Vincent Rajkumar
PURPOSE OF REVIEW: Monoclonal gammopathies result from an overt malignant process, such as multiple myeloma, or a premalignant process, such as monoclonal gammopathy of undetermined significance. The kidney is often affected in the setting of a monoclonal gammopathy. The term 'monoclonal gammopathy of renal significance (MGRS)' was recently introduced to draw attention to renal diseases related to the monoclonal gammopathy. In this review, we define the pathology of these monoclonal gammopathy-associated kidney diseases...
March 2016: Current Opinion in Nephrology and Hypertension
Guillermo A Herrera, Kunle O Ojemakinde, Elba A Turbat-Herrera, Xin Gu, Xu Zeng, Samy S Iskandar
Immunotactoid glomerulopathy is a rare disorder that has been characterized at the ultrastructural level. Due to its rarity, there are few comprehensive studies relating to this disorder. Electron microscopy essentially characterizes this disease. The glomerular electron dense deposits which are typical of this condition consist of aggregates of highly organized microtubular structures of various diameters, but generally measuring 30-50 nm in width with a propensity to dispose themselves in parallel bundles intersecting in different planes...
2015: Ultrastructural Pathology
Abdullah Ozkok, Alaattin Yildiz
Hepatitis C virus (HCV) infection is a systemic disorder which is often associated with a number of extrahepatic manifestations including glomerulopathies. Patients with HCV infection were found to have a higher risk of end-stage renal disease. HCV positivity has also been linked to lower graft and patient survivals after kidney transplantation. Various histological types of renal diseases are reported in association with HCV infection including membranoproliferative glomerulonephritis (MPGN), membranous nephropathy, focal segmental glomerulosclerosis, fibrillary glomerulonephritis, immunotactoid glomerulopathy, IgA nephropathy, renal thrombotic microangiopathy, vasculitic renal involvement and interstitial nephritis...
June 28, 2014: World Journal of Gastroenterology: WJG
(no author information available yet)
AIM: To study the pathomorphology of kidneys in patients with multiple myeloma (MM) and severe renal failure (RF) and to compare the results of morphological, immunohistochemical, and electron microscopic examinations of nephrobiopsy specimens with the pattern of monoclonal secretion and the type of proteinuria and paraproteinuria. SUBJECTS AND METHODS: A study group comprised 25 patients with MM and severe RF; 22 of them underwent programmed hemodialysis. Immunochemical study of serum and urine proteins, renal puncture biopsy with light, immunofluorescence and electron microscopy examination of its specimens were performed in all the patients...
2013: Terapevticheskiĭ Arkhiv
Benjamin Terrier, Patrice Cacoub
Renal involvement has been frequently reported in the setting of hepatitis C virus (HCV) infection. The most common renal pathology associated with chronic HCV infection is type I membranoproliferative glomerulonephritis associated with type II mixed cryoglobulinemia, while membranoproliferative glomerulonephritis without cryoglobulinemia and membranous nephropathy were less frequently reported. Rarely, focal segmental glomerulosclerosis, fibrillary and immunotactoid glomerulopathies, and thrombotic microangiopathies were described during the course of HCV infection...
September 2013: Clinics and Research in Hepatology and Gastroenterology
Kirtee Raparia, Irtaza Usman, Yashpal S Kanwar
CONTEXT: Nodular, intercapillary glomerulosclerotic lesions resembling Kimmelstiel-Wilson nodules commonly observed in diabetic nephropathy can also be seen in patients without any clinical history or evidence of diabetes. OBJECTIVES: To discuss the pathobiology of lesions reminiscent of diabetes nephropathy, including light-chain deposition disease, amyloidosis, immunotactoid nephropathy, the membranoproliferative form of glomerulonephritis, and idiopathic nodular glomerulosclerosis, and how to differentiate them from diabetic nephropathy...
March 2013: Archives of Pathology & Laboratory Medicine
A Falcão Pedrosa Costa, W Albert Gomes dos Santos, M A Gonçalves Pontes Filho, F Teles Farias, V Modesto dos Santos
Nodular glomerulosclerosis may be idiopathic or develop associated with diabetes mellitus, membranoprolipherative glomerulonephritis, light or heavy chain deposits, amyloidosis, fibrillary or immunotactoide disease, and Takayasu's arteritis. Histological features of idiopathic nodular glomerulosclerosis are similar to the Kimmelstiel-Wilson changes. Recent evidence points to the role of hyperglycemia, hyperlipidemia, hypertension and smoking in the mechanisms of this uncommon condition. The case study of a 65-year-old male presenting recent arterial hypertension and nodular non-diabetic glomerulosclerosis is described, and the possible role of heavy smoking in the pathogenesis of this condition is emphasized...
May 2011: Anales del Sistema Sanitario de Navarra
E P Golitsyna, V A Varshavskiĭ, A V bocharnikova, I G Rekhtina
Fibrillary glomerulonephritis (FGN) and immunotactoid nephropathy (ITN) are diseases diagnosed only by electron microscopy. Until recently, information on the diseases has reached as reports on some cases. Much information, including the authors' observations, has been presently gathered so as there is a chance of attempting to pool and analyze it. It is quite obvious that investigators do not agree to evaluate FGN and ITN. Some authors are inclined to believe that these are one disease and propose to use the general term "fibrillary-immunotactoid nephropathy", we, like others, consider FGN and ITN as two different diseases...
May 2011: Arkhiv Patologii
Claudio Ponticelli, Gabriella Moroni, Richard J Glassock
The risk of a posttransplant recurrence of secondary glomerulonephritis (GN) is quite variable. Histologic recurrence is frequent in lupus nephritis, but the lesions are rarely severe and usually do not impair the long-term graft outcome. Patients with Henoch-Schonlein nephritis have graft survival similar to that of other renal diseases, although recurrent Henoch-Schonlein nephritis with extensive crescents has a poor prognosis. Amyloid light-chain amyloidosis recurs frequently in renal allografts but it rarely causes graft failure...
May 2011: Clinical Journal of the American Society of Nephrology: CJASN
C Chen, K D Jhaveri, C Hartono, S V Seshan
Renal disease is not uncommon in those infected with HIV. The most common manifestation of HIV in the kidney is HIV-associated nephropathy (HIVAN). Other HIV- and non-HIV-related causes have been described in the literature. Immunotactoid glomerulonephritis (ITG) is a rare disorder found in 0.06% of renal biopsies characterized by organized tubular immune complex deposits, observed more often in Caucasians. ITG tends to occur in an older age group and in some patients has been associated with a hemopoietic malignancy...
January 2011: Clinical Nephrology
Guillermo A Herrera, Elba A Turbat-Herrera
CONTEXT: Most renal diseases with organized deposits are relatively uncommon conditions, and proper pathologic characterization determines the specific diagnosis. Different entities with specific clinical correlates have been recognized, and their correct diagnosis has an impact on patient management, treatment options, and determination of prognosis. OBJECTIVE: The diagnosis of these conditions depends on careful evaluation of the findings by light microscopy together with immunofluorescence and electron microscopy...
April 2010: Archives of Pathology & Laboratory Medicine
M Nebuloni, G Barbiano di Belgiojoso, A Genderini, A Tosoni, N L, Riani, M Heidempergher, P Zerbi, L Vago
AIM: Glomerular involvement in HIV-positive patients is quite heterogeneous. In the present paper we reviewed 73 renal biopsies performed during a period of more than 20 years in a single Nephrology Unit, Milan, Northern Italy, in order to evaluate the aspects of single types of glomerular lesions (including HIV associated nephropathy-HIVAN), grouped according to histological patterns and clinical presentation. Moreover, in the group of non-HIVAN patients, the possible differences in histological characteristics from non-HIV lesions were investigated...
July 2009: Clinical Nephrology
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