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Related Experiment Videos

Diffuse glomerular basement membrane lamellation in post-transplant IgA nephropathy.

Kye Weon Kwon1, Soon Won Hong, Soon Il Kim

  • 1Department of Pathology, Yonsei University College of Medicine, C.P.O. Box 8044, Seoul 120-752, Korea.

Yonsei Medical Journal
|June 29, 2002
PubMed
Summary

Diffuse glomerular basement membrane lamellation, a rare finding in kidney transplants, was observed in an adult recipient from a young donor. This condition led to graft failure and the need for hemodialysis.

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Area of Science:

  • Nephrology
  • Transplant Medicine
  • Pathology

Background:

  • Alport syndrome is characterized by glomerular basement membrane (GBM) abnormalities.
  • Diffuse GBM lamellation is a rare finding, previously reported only in pediatric-to-adult renal allografts.

Observation:

  • A 42-year-old male recipient received a kidney from a 21-year-old living donor.
  • Renal allograft biopsies at 3.5 and 4.8 years post-transplant revealed progressive GBM lamellation and IgA deposition.

Findings:

  • The patient presented with massive proteinuria and elevated serum creatinine.
  • Histopathology showed widened mesangium with IgA deposits, diffuse GBM lamellation, and splintering.
  • IgA deposits extended to capillary walls in the second biopsy, indicating progression.

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Implications:

  • This case expands the known spectrum of GBM lamellation in renal allografts.
  • The findings suggest potential donor-recipient age dynamics or other factors contributing to this rare lesion.
  • Understanding this pathology is crucial for managing kidney transplant recipients and improving graft survival.