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Diffuse proliferative glomerulonephritis associated with dermatomyositis with nephrotic syndrome
1Department of Rheumatology and Immunology, West China Hospital of Sichuan University, 610041, Chengdu, Sichuan, China.
Rheumatology International
|June 18, 2009
Summary
Dermatomyositis (DM) can present with nephrotic syndrome (NS) due to rare kidney conditions like diffuse proliferative glomerulonephritis (DPGN). Effective treatment involves steroids and cyclophosphamide (CTX).
Area of Science:
- Nephrology
- Rheumatology
- Pathology
Background:
- Dermatomyositis (DM) is an idiopathic inflammatory myopathy.
- Nephrotic syndrome (NS) is a kidney disorder characterized by heavy proteinuria.
- Glomerulonephritis is an uncommon but serious renal complication of DM.
Observation:
- A 44-year-old male presented with concurrent DM and NS.
- Renal biopsy confirmed diffuse proliferative glomerulonephritis (DPGN) with immunoglobulin and complement deposition.
- Literature review indicated membranous glomerulonephritis (MGN) and mesangial proliferative glomerulonephritis (mesPGN) as more common renal lesions in DM.
Findings:
- This case represents a rare association of DM with DPGN causing NS.
- The patient's DPGN showed characteristic immune complex deposition.
- Combined therapy with corticosteroids and cyclophosphamide (CTX) proved highly effective.
Implications:
- Renal pathology in DM is more diverse than previously recognized.
- Early diagnosis and treatment of glomerulonephritis in DM patients are crucial.
- Steroid and cytotoxic drug therapies offer a favorable prognosis for DM-associated renal disease.
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