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Collapsing glomerulopathy in collagen vascular-like disease
Lupus
|November 29, 2013
Summary
Collapsing glomerulopathy (CG) can present with collagen vascular-like disease, marked by severe proteinuria and renal insufficiency. Rheumatologists should consider this podocytopathy in patients with serological abnormalities but few clinical symptoms.
Area of Science:
- Nephrology
- Rheumatology
- Immunology
Background:
- Collapsing glomerulopathy (CG) is a severe podocytopathy often linked to viral infections or defined collagen vascular diseases like lupus.
- A subset of patients presents with serological abnormalities suggestive of autoimmune disease but lacks definitive clinical criteria.
Observation:
- This study details four new cases of CG with collagen vascular-like disease and reviews 14 similar cases from the literature.
- Patients typically present with severe nephrotic-range proteinuria and kidney failure resistant to standard treatments.
Findings:
- These patients exhibit positive antinuclear antibodies (ANA) and other significant serological markers without clear clinical rheumatologic diagnoses.
- Most affected individuals progress to requiring dialysis.
- Mycophenolate mofetil (MMF) shows potential as a therapeutic option.
Implications:
- Rheumatologists should be aware of CG as a potential diagnosis in patients with unexplained proteinuria and renal insufficiency.
- Early recognition and appropriate consultation are crucial for managing this challenging podocytopathy.
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