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Crescentic transformation in primary membranous glomerulopathy: association with anti-GBM antibody

Shobhana G Nayak1, Renuka Satish

  • 1Department of Nephrology, St. John's Medical College Hospital, Bangalore, India. nayak_shobhana@rediffmail.com

Saudi Journal of Kidney Diseases and Transplantation : an Official Publication of the Saudi Center for Organ Transplantation, Saudi Arabia
|October 24, 2007
PubMed

Insights

A rare complication of primary membranous nephropathy (MN) is crescent formation with anti-GBM antibodies, leading to acute kidney injury. This case highlights the poor prognosis despite aggressive treatment for this rare condition.

Area of Science:

  • Nephrology
  • Immunology
  • Pathology

Background:

  • Primary membranous nephropathy (MN) is a common cause of nephrotic syndrome in adults.
  • Anti-glomerular basement membrane (anti-GBM) antibody disease typically presents with glomerulonephritis and pulmonary hemorrhage.
  • The co-occurrence of MN and anti-GBM antibody disease is exceedingly rare.

Observation:

  • A 54-year-old female with a four-year history of MN presented with acute renal failure.
  • Renal biopsy demonstrated diffuse circumferential crescents in all glomeruli.
  • Serum analysis confirmed the presence of anti-GBM antibodies.

Findings:

  • The patient exhibited crescentic glomerulonephritis superimposed on primary MN.
  • Despite treatment with plasmapheresis, corticosteroids, and cyclophosphamide, renal function did not improve.
  • The patient remained dialysis-dependent, indicating a poor treatment response.

Implications:

  • This case underscores the aggressive nature and poor prognosis of crescentic transformation in MN associated with anti-GBM antibodies.
  • It highlights the importance of considering anti-GBM antibody disease in MN patients presenting with rapid decline in kidney function.
  • Further research may be needed to explore optimal therapeutic strategies for this rare clinical entity.

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