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Collapsing glomerulopathy

Turki Al Hussain, Hadeel Al Mana, Maged H Hussein, Mohammed Akhtar
The glomerulus has 3 resident cells namely mesangial cells that produce the mesangial matrix, endothelial cells that line the glomerular capillaries, and podocytes that cover the outer surface of the glomerular basement membrane. Parietal epithelial cells (PrECs), which line the Bowman's capsule are not part of the glomerular tuft but may have an important role in the normal function of the glomerulus. A significant progress has been made in recent years regarding our understanding of the role and function of these cells in normal kidney and in kidneys with various types of glomerulopathy...
September 26, 2016: Advances in Anatomic Pathology
David Buob, Mélanie Decambron, Viviane Gnemmi, Marie Frimat, Maxime Hoffmann, Raymond Azar, Jean-Dominique Gheerbrant, Thomas Guincestre, Christian Noël, Marie-Christine Copin, François Glowacki
Thrombotic microangiopathy (TMA) is a poorly recognized cause of collapsing glomerulopathy. The frequency and significance of collapsing glomerulopathy associated with renal TMA have not been specifically studied in native kidney biopsy specimens. Here we retrospectively documented clinicopathologic features of 53 patients with histologically proven TMA in the native kidney, with special emphasis on changes due to focal segmental glomerulosclerosis (FSGS). Histological TMA was related to hypertensive nephropathy in 21 patients, genetic complement abnormalities in 9, drugs in 7, and to other causes in 16 patients...
September 17, 2016: Kidney International
Whitney Besse, Sherry Mansour, Karan Jatwani, Cynthia C Nast, Ursula C Brewster
BACKGROUND: Collapsing Glomerulopathy (CG), also known as the collapsing variant of Focal Segmental Glomerulosclerosis (FSGS), is distinct in both its clinical severity and its pathophysiologic characteristics from other forms of FSGS. This lesion occurs disproportionally in patients carrying two APOL1 risk alleles, and is the classic histologic lesion resulting from Human Immunodeficiency Virus (HIV) infection of podocytes. Other viral infections, including parvovirus B19, and drugs such as interferon that perturb the immune system, have also been associated with CG...
2016: BMC Nephrology
M Mantan, R Grover, S Kaur, V Batra
Collapsing glomerulopathy has been classified as a variant of focal segmental glomerulosclerosis. It is associated with infections, inflammations, and certain medications. While its association with human immunodeficiency virus has been well established its occurrence with hepatitis B has not been reported. We present here a case of collapsing glomerulopathy in a child with hepatitis B infection.
July 2016: Indian Journal of Nephrology
Cengiz Zeybek, Gokalp Basbozkurt, Salih Hamcan, Ayhan Ozcan, Davut Gul, Faysal Gok
Galloway-Mowat syndrome (GMS) is an autosomal recessive disorder with a poor prognosis that was first defined as a triad of central nervous system involvement, hiatal hernia, and nephrotic syndrome. However, this syndrome is now known to have a heterogeneous clinical presentation. The nephrotic syndrome is steroid resistant and is responsible for the outcome. The combination of collapsing glomerulopathy and GMS is very rare. A 26-month-old boy presented with steroid-resistant nephrotic syndrome associated with neurologic findings, including microcephaly, psychomotor retardation, and nystagmus...
2016: Case Reports in Nephrology
Kamal V Kanodia, Aruna V Vanikar, Rashmi D Patel, Kamlesh S Suthar, Lovelesh K Nigam, Himanshu V Patel, Vivek Kute, Hargovind L Trivedi
INTRODUCTION: Collapsing Glomerulopathy (CG) is recognized as distinct pattern of proliferative parenchymal injury with poor response to empirical therapy. AIM: A single center retrospective study was carried out to find out clinicopathological features of idiopathic CG. MATERIALS AND METHODS: A total of 3335 native renal biopsies were analyzed retrospectively which were performed from 2008 to 2014 with emphasis on clinicopathological correlation and histopathological presentation...
April 2016: Journal of Clinical and Diagnostic Research: JCDR
Xuejing Zhu, Hong Liu, Shuguang Yuan, Xiangqing Xu, Zhen Dong, Fuyou Liu
A 38-year-old Chinese man was admitted to the Second Xiangya Hospital of the Central South University (Changsha, China) with heavy proteinuria and rapidly progressing renal failure with nephrotic syndrome. An initial renal biopsy identified collapsing glomerulopathy (CG) with characteristic segmental collapse of the glomerular tuft and marked hypertrophy and hyperplasia of the visceral epithelial cells. A second renal biopsy showed dilation of glomerular capillary loops as a result of effective treatment with rapamycin and anti-viral therapy...
May 2016: Experimental and Therapeutic Medicine
N Singh, M Rathi, R Nada, A Sharma, A Goyal, R Ramachandran, V Kumar, H S Kohli, K L Gupta
Collapsing glomerulopathy (CG) is a pathological entity characterized by collapse and wrinkling of glomerular tuft, podocyte dedifferentiation and hyperplasia. CG may be idiopathic or secondary to other diseases. CG has been described with IgA nephropathy, membranous glomerulopathy, diabetic nephropathy, and lupus nephritis. However, till date there is no report of CG in association with the anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV). Here, we present a case of CG that developed during follow-up in a case of AAV with biopsy proven pauci-immune glomerulonephritis...
March 2016: Indian Journal of Nephrology
Brian T Brinkerhoff, Donald C Houghton, Megan L Troxell
Renal injury in hematopoietic cell transplant recipients may be related to a combination of factors including chemotherapy, radiation, infection, immunosuppressive agents, ischemia, and graft-versus-host disease, and can involve glomerular, tubulointerstitial, and vascular structures. We reviewed renal pathology from 67 patients at a single institution (2009-2014), including 14 patients with biopsy for clinical dysfunction, 6 patients with surgical kidney resection for other causes, and 47 autopsy patients...
June 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
P B Shah, J E Cooper, M S Lucia, C Boils, C P Larsen, A C Wiseman
Two common polymorphisms in APOL1 (G1 and G2) are conserved in persons of African ancestry, and the presence of two polymorphisms (commonly referred to as risk variants) has been identified as a risk factor for chronic kidney disease and focal seg-mental glomerulosclerosis. In kidney transplantation, deceased donors with two APOL1 risk variants carry an increased risk of renal allograft failure in the recipient. An emerging question is whether these data should influence deceased donor assessment or be used to refine prediction of allograft survival...
June 2016: American Journal of Transplantation
Dominick Santoriello, Jonathan Hogan, Vivette D D'Agati
Hemophagocytic syndrome (HPS), a rare and life-threatening disease, is characterized by hyperactivation of the immune system that causes hypercytokinemia and potential multiorgan failure. Acute kidney injury is the most common kidney manifestation of HPS and is generally considered a poor prognostic factor. Glomerular involvement is uncommon and usually manifests as either podocytopathy with collapsing glomerulopathy or thrombotic microangiopathy. We report a rare case of severe histiocytic glomerulopathy in a patient with HPS who presented with acute kidney injury and proteinuria...
June 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Najamus Sehar, Emad Gobran, Suzanne Elsayegh
Introduction. Collapsing focal segmental glomerulosclerosis (FSGS) is most commonly seen in association with HIV infection. Rare data is available about the association between collapsing FSGS and malaria. Case Description. A 72-year-old African male patient presented to the hospital for generalized body aches, fatigue, fever, and night sweats for three days. He had history of recent travel to Ghana. Patient looked in acute distress and was shivering. Laboratory tests showed elevated serum creatinine (Cr) of 2...
2015: Case Reports in Medicine
Agnes B Fogo, Mark A Lusco, Behzad Najafian, Charles E Alpers
No abstract text is available yet for this article.
August 2015: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Ghadeer A Mokhtar, Sawsan M Jalalah
INTRODUCTION: C1q nephropathy is a relatively rare idiopathic glomerulopathy characterized by mesangial immunoglobulin and complement deposits with dominance or co-dominance of C1q, with no evidence of systemic lupus erythematosus. We describe the incidence, clinical manifestation, histopathological features, and follow-up of patients with C1q nephropathy at our institute. MATERIALS AND METHODS: Of 750 kidney biopsy specimens obtained in the period of January 2000 to December 2011, all the cases that meet the criteria for the diagnosis of C1q nephropathy were retrieved...
July 2015: Iranian Journal of Kidney Diseases
Raja Ramachandran, Venkatesh Rajakumar, Ritambhra Duseja, Vinay Sakhuja, Vivekanand Jha
Collapsing focal segmental glomerulosclerosis (FSGS), or collapsing glomerulopathy (CG), responds poorly to commonly employed therapies, with a high proportion of patients progressing to end-stage renal disease. We report an adult in a nephrotic state, diagnosed with minimal-change disease on biopsy, who failed to respond to steroids, calcineurin inhibitors (CNIs), mycophenolate mofetil and cyclophosphamide. Repeat biopsy showed CG. Treatment with 4 weekly doses of rituximab led to sustained remission of his nephrotic state...
October 2013: Clinical Kidney Journal
Kamesh R Ayasolla, Partab Rai, Shai Rahimipour, Mohammad Hussain, Ashwani Malhotra, Pravin C Singhal
Collapsing glomerulopathy and microcysts are characteristic histological features of HIV-associated nephropathy (HIVAN). We have previously reported the role of epithelial mesenchymal transition (EMT) in the development of glomerular and tubular cell phenotypes in HIVAN. Since persistent tubular cell activation of NFκB has been reported in HIVAN, we now hypothesize that HIV may be contributing to tubular cell phenotype via lysophosphatidic acid (LPA) mediated downstream signaling. Interestingly, LPA and its receptors have also been implicated in the tubular interstitial cell fibrosis (TIF) and cyst formation in autosomal dominant polycystic kidney disease (PKD)...
August 2015: Experimental and Molecular Pathology
Javed Kazi, Muhammed Mubarak
No abstract text is available yet for this article.
February 2012: Clinical Kidney Journal
Roberto H Berdichevski, Eduardo M De Carvalho, Maria Isabel Edelweiss, Luiz Felipe Gonçalves, Roberto C Manfro
A patient who developed oliguric acute renal failure and nephrotic syndrome within 2 weeks after finishing interferon and ribavirin treatment is reported. At presentation, HCV PCR was negative, and no immunological laboratory test was found altered. A renal biopsy showed collapsing glomerulopathy, and the patient received supportive haemodialysis and high-dose steroids. Twelve days after steroid treatment, renal function started to recover. After 18 weeks, normal renal function and protein/creatinine urinary ratio were achieved and remained normal up to 1-year post-treatment...
December 2010: NDT Plus
Nishkantha Arulkumaran, Pablo Reitbock, Kirsty Halliday, James Onwubalili, Dakshina Jayasena, Peter J Dupont
A young woman of African descent presented with fevers, arthralgia, lymphadenopathy and a skin rash. Modest proteinuria was also noted. The clinical picture suggested an acute HIV sero-conversion illness, and a renal biopsy showed a collapsing glomerulopathy compatible with that diagnosis. However, HIV serology proved persistently negative and a diagnosis of Adult Still's disease was subsequently made (by Yamaguchi criteria). Following steroid treatment, the patient's fever abated and her inflammatory markers returned to normal...
February 2010: NDT Plus
Geraldo Rubens Ramos de Freitas, Marcel Rodrigues Gurgel Praxedes, Denise Malheiros, Leonardo Testagrossa, Cristiane Bitencourt Dias, Viktoria Woronik
OBJECTIVE: To describe the clinical and laboratory profile of focal segmental glomerulosclerosis (FSGS) of the collapsing subtype in association with infection by parvovirus B19 (PVB19). CASE REPORT: Female patient, 37 years old, mulatto, developed pharyngalgia and fever with partial improvement after penicillin. After one week we observed reduced urinary output and lower limb edema. Smoker, family and personal history negative for hypertension, diabetes or kidney disease...
January 2015: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
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