Dual Glomerular Lesion in Hiv Patient

Case Report | DOI: https://doi.org/10.31579/2834-5142/016

Dual Glomerular Lesion in Hiv Patient

  • José Lucas. Daza 1*
  • Yaroslad De La Cruz 1
  • John F. Galindo 2
  • Gerardo Gutierrez 1
  • Luis Puello 1
  • Abel Caraballo 7
  • Néstor Guarnizo 6
  • Luis Daza 4
  • Daniel Fernando Soto 3
  • Carlos Alban 3
  • Andrés Cárdenas 5

1 Nephrology unit, Hospital De Clínicas, Buenos Aires, Argentina.

2 Nephrology unit, Fresenius Medical Care -Ibagué –Colombia.   

3 Department of medicine, Manizales University –Colombia.

4 Hematology unit, Fluminense University -Rio de Janeiro –Brazil.

5 Department of medicine, Cooperativa University-Santa Marta-Colombia.

6 Intensive care unit, Tolima Universito –Colombia.

7 Intesivist Physician - Barranquilla – Colombia.

*Corresponding Author: José Lucas. Daza, Nephrology unit, Hospital De Clínicas, Buenos Aires, Argentina.

Citation: José Lucas. Daza, Yaroslad De La Cruz, John F. Galindo, Gerardo Gutierrez, Luis Puello., et all (2022). Dual Glomerular Lesion in Hiv Patient. International Journal of Clinical Nephrology. 4(1); DOI:10.31579/2834-5142/016

Copyright: © 2022 José Lucas. Daza. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Received: 15 December 2021 | Accepted: 04 January 2022 | Published: 11 January 2022

Keywords: Covid-19; acute kidney injury; nephrology

Abstract

HIV-associated nephropathy (HIVAN), the classic kidney disease associated with HIV infection, was first described in 1984 as a complication of AIDS  although HIVAN may also occur in patients with less advanced HIV infection or following acute seroconversion  Histologically, HIVAN is a collapsing form of focal segmental glomerulosclerosis (FSGS)  accompanied by microcystic tubular dilatation and interstitial inflammation. HIV-immune complex kidney disease (HIVICK). Other immune complex diseases may also occur in HIV-infected patients, including IgA nephropathy and postinfectious glomerulonephritis, and are best diagnosed as those specific entities

The pathophysiological mechanism of HIVAN injury is mediated by direct infection of renal epithelial cells by HIV, expression of intrarenal viral genes, and dysregulation of host genes by modulating cell differentiation and the cell cycle. In contrast, kidney disease by HIV immune complexes (HIVICK) involves a different immune mechanism with antibody deposits within glomerular structures. Both entities progressively present different degrees of proteinuria and progressive decrease in the glomerular filtration rate, depending on the commitment or histology suffered by the patient.

In this case reports patient with clinical picture of 3 months of evolution of temporo-spatial disorientation and alteration of the state of consciousness associated with hyperthermia. We perform neuroimaging without alterations, a lumbar punctures performed with evidence of an infectious process by coconuts + in the GRAM of the cerebrospinal fluid , normochromic normocytic anemia and renal failure , sub nephrotic proteinuria, glomerular hematuria, HIV positive, recount of normal CD4, renal biopsy   with diagnosis of immune-mediated glomerulonephritis (IgG and C3), in  the immunofluorescence ( HIVICK) and with membrano pattern proliferative and in two glomeruli focal segmental sclerosis collapsing variant ( HIVAN)is observed

Introduction

Kidney disease is among the leading causes of morbidity and mortality in patients with human immunodeficiency (HIV) [1]. Groups of glomerular diseases that are related to HIV: podocytopathies and those mediated by immune complexes [2].

HIV-associated nephropathy (HIVAN) IS the most frequent podocytopathy and is the most important cause of end- stage renal disease is this population [3], mediated by direct infection of renal epithelial cells by HIV, expression of intrarenal viral genes, and dysregulation of host genes that govern cell differentiation and cell cycle [4].

HIV-immune complex kidney disease (HIVICK) involves a different immune mechanism with antibody deposits within glomerular structures. Both entities lead to proteinuria and progressive decrease in the glomerular filtration rate, although HIV not only has glomerular involvement but also vascular, interstitial involvement, we will focus on glomerular involvemen [5], (SEE TABLE 1)

Tabla 1: Pathologic classification of HIV-related kidney diseases. Adapte from KDIGO 

In this paper we report a case of a Latino patient with HIV had immune-complex mediated glomerular disease (HIVICK) plus a collapsing glomerulopathy (HIVAN) with normal CD4 cell count.

Figure 1: Global IgG immunofluorescence in capillary Walls and discontinues mesangial
Figure 2: PAS staining: Mesangial and endothelial hypercellularity. Mesangial expansión and mesangial nodule
Figure 3: Electron microscopy (Ultrastructure) permeable capillary lights, thickening of the peripheric capillary walls, mesangial expansion with electrodense accumulations compatible with immune deposits are observed.
Figure 4: Electron microscopy that shows collapse of capillary loops, podocyte damage , swelling of cytoplasmic, loss of podocyte extensions
Figure 5: Immunofluorescence with evidence of protein resorption granules in epithelial cells.
Figure 6: PAS Technique: segmental collapse of capillary loops, hypertrophy of epithelial cells, vacuolization and granules of protein reabsorption.

CASE PRESENTATION

It presents in the emergency department male of 72 years with behavioral alterations of 3 months of evolution, associated with hyperthermia in the last week. On physical examination he with PA 150/100 mmHg, neurologically responds to simple commands, and has disorientation in time and space. In the laboratory with Hematocrit 27%, Hemoglobin 8.7  mg/dl, white blood cells 6370 cel/ul (CD4 795 cel/ul), platelets 222000 cel /ul, ureic nitrogen  57 mg /dl, creatinine 2.03 md /dl. A simple brain CT scan is performed without alterations and lumbar puncture with normal opening pressure, cerebrospinal fluid with 120 cells/ul (70% monocities’), glucose 48 mg/dl, (glycemia 124 mg/dl) , proteins 40 mg/dl, gram with coconuts (+) , HIV rapid test (+), viral load 69,780 copies 8log 4.8), urinary sediment with density 1012mOsm/L, Ph 5, proteinuria 4+, 30-40 dysmorphic red blood cells (> 5

CONCLUSION

HIVAN/HIVICK are the most frequent forms of kidney disease directly related to HIV infection, HIVAN usually occurs in patients with advanced disease with low CD4 count, with massive proteinuria and progressive renal failure, and HIVICK are several the spectrum of diseases associated with immune complexes such as membranous nephropathy , glomerulus nephritis with proliferative membrane pattern, in this patient had coexistence of dual glomerular lesion, it is an infrequent case of two histopathological patterns of glomerulopathies in relation to HIV simultaneously in the context of a patient with recent diagnosis of retrovirus infection and normal CD4 count. In the world literature there are few reported cases of both histopathological findings together and with the characteristics of infect-immunological profile presented in our case

References

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