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Correlates of hematuria on glomerular histology and electron microscopy in IgA nephropathy

Rohit Tewari1, Ritambhra Nada2, Maninder Kaur3

  • 1Assistant Professor, Dept of Pathology, Armed Forces Medical College, Pune 411040, India.

Medical Journal, Armed Forces India
|June 4, 2016
PubMed

Insights

In IgA nephropathy, endocapillary proliferation and tubular atrophy/interstitial fibrosis on kidney biopsy correlate with hematuria. These histological findings are key indicators of disease activity and progression.

Area of Science:

  • Nephrology
  • Pathology
  • Immunology

Background:

  • Hematuria is a primary clinical sign of IgA nephropathy.
  • IgA nephropathy diagnosis and prognosis rely on histological assessment.
  • Understanding histological-hematuria correlation aids clinical management.

Purpose of the Study:

  • To analyze histological findings using the Oxford classification in IgA nephropathy.
  • To examine ultrastructural changes in the glomerular basement membrane.
  • To correlate histological and ultrastructural changes with hematuria severity.

Main Methods:

  • Renal biopsy samples from 66 IgA nephropathy patients were analyzed.
  • Histological evaluation employed the Oxford classification system.
  • Electron microscopy assessed glomerular immune deposits and glomerular basement membrane alterations.

Main Results:

  • Endocapillary proliferation and tubular atrophy/interstitial fibrosis showed significant correlation with hematuria.
  • No significant association was found between hematuria and the location of immune deposits.
  • Glomerular basement membrane alterations, including thinning and lamellar splitting, were observed in 12 cases.

Conclusions:

  • Endocapillary proliferation is a significant histological predictor of hematuria in IgA nephropathy at presentation.
  • Tubular atrophy and interstitial fibrosis also correlate with hematuria.
  • Further research into GBM alterations and their clinical significance is warranted.
Abstract

Keywords:
Electron microscopyHematuriaIgA nephropathyOxford classification

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