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Transformation of membranous into anti-GBM nephritis
S Imtiaz1, A Alswaida, H Rehman
1Department of Medicine, King Khalid University, Hospital Riyadh, Saudi Arabia.
Abstract:
Membranous nephropathy is a common glomerular disease. We report a 50-year-old man with a history of membranous nephropathy in remission, who presented with acute kidney injury, proteinuria, hematuria, and hypertension. He also had a high anti-glomerular basement membrane (anti-GBM) antibody titer and crescent transformation of primary pathology. The kidney functions deteriorated rapidly despite aggressive therapy with cyclophosphamide, methylprednisolone, and plasmapheresis.
Insights
A patient with membranous nephropathy experienced acute kidney injury due to high anti-glomerular basement membrane (anti-GBM) antibody titers and crescent formation. Aggressive treatment failed to restore kidney function.
Area of Science:
- Nephrology
- Immunopathology
Background:
- Membranous nephropathy is a frequent cause of glomerular disease.
- Patient history of membranous nephropathy in remission.
Observation:
- Presented with acute kidney injury, proteinuria, hematuria, and hypertension.
- High anti-glomerular basement membrane (anti-GBM) antibody titer detected.
- Crescent transformation observed in kidney biopsy.
Findings:
- Rapid deterioration of kidney function despite aggressive treatment.
- Standard immunosuppressive therapy (cyclophosphamide, methylprednisolone) and plasmapheresis were ineffective.
- Coexistence of membranous nephropathy features with anti-GBM disease.
Implications:
- Highlights a rare and aggressive clinical presentation of kidney disease.
- Suggests potential overlap or distinct pathophysiological mechanisms in glomerular diseases.
- Underscores the need for further investigation into treatment strategies for refractory cases.
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