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Hepatitis C-associated cryoglobulinemic glomerulonephritis with crystalline deposits

Mazdak A Khalighi1, Charles R Lassman

  • 1Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, USA. mkhalighi@mednet.ucla.edu

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|April 4, 2013
PubMed

Insights

Hepatitis C virus infection can cause kidney disease, most commonly cryoglobulinemic glomerulonephritis. This case study highlights unusual ultrastructural findings in this specific kidney disease associated with Hepatitis C.

Area of Science:

  • Nephrology
  • Virology
  • Pathology

Background:

  • Hepatitis C virus (HCV) infection is linked to various extrahepatic manifestations, notably kidney disease.
  • Cryoglobulinemic glomerulonephritis (CGN) is the most common glomerular disease associated with HCV.
  • Kidney biopsy in CGN typically shows a membranoproliferative pattern, with characteristic ultrastructural findings of curved and paired microtubules.

Observation:

  • This report details a unique case of cryoglobulinemic glomerulonephritis.
  • The patient presented with distinct and highly unusual ultrastructural findings on kidney biopsy.
  • These findings deviate from the commonly observed microtubular structures in HCV-associated CGN.

Findings:

  • The case exhibited atypical ultrastructural morphology in the context of cryoglobulinemic glomerulonephritis.
  • Detailed ultrastructural analysis revealed unique pathological features not previously documented in HCV-related kidney disease.
  • The variability of ultrastructural findings in CGN is further emphasized by this unusual presentation.

Implications:

  • This case expands the understanding of the spectrum of kidney pathology in Hepatitis C virus infection.
  • Recognizing unusual ultrastructural findings is crucial for accurate diagnosis and management of HCV-associated glomerulonephritis.
  • Further research into the pathobiology of HCV-related kidney disease may be warranted based on these distinct observations.

Keywords:
Cryoglobulinemiacryoglobulinemic glomerulonephritiscrystalline depositshepatitis Cmembranoproliferative glomerulonephritisorganized deposits

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