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Type III membranoproliferative glomerulonephritis in a patient with primary Sjögren's syndrome
In O Sun1, Yu Ah Hong, Hoon Suk Park
1Division of Nephrology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Korea.
Abstract:
Renal involvement in the form of glomerulonephritis in Sjögren's syndrome (SS) is less common and usually a latent sequel in the course of the disease. We report a patient with Type III membarnoproliferative glomerulonephritis (MPGN) with hypothyroidism, which precedes the onset of the clinical manifestation of SS. She received immunosuppressions consisting of i.v. cyclophosphamide and high-dose corticosteroid and subsequently oral corticosteroid resulting in complete remission of nephrotic syndrome. To our knowledge, this is the first report of successfully treated Type III MPGN associated with SS.
Insights
Sjögren's syndrome (SS) can cause kidney problems like glomerulonephritis. This case study details the successful treatment of a patient with Type III membranoproliferative glomerulonephritis (MPGN) and hypothyroidism preceding SS symptoms.
Area of Science:
- Nephrology
- Rheumatology
- Endocrinology
Background:
- Sjögren's syndrome (SS) is a chronic autoimmune disease primarily affecting exocrine glands.
- Renal involvement, particularly glomerulonephritis, is an uncommon but serious complication of SS.
- Membranoproliferative glomerulonephritis (MPGN) is a rare form of kidney disease characterized by specific immune deposits.
Observation:
- A patient presented with hypothyroidism preceding the clinical diagnosis of Sjögren's syndrome.
- The patient was diagnosed with Type III membranoproliferative glomerulonephritis (MPGN), a less common renal manifestation.
- This specific subtype of MPGN in the context of SS is rarely reported.
Findings:
- The patient received a combination of intravenous cyclophosphamide and high-dose corticosteroids, followed by oral corticosteroids.
- This immunosuppressive therapy led to a complete remission of nephrotic syndrome.
- This represents the first reported case of successful treatment for Type III MPGN associated with Sjögren's syndrome.
Implications:
- This case highlights the importance of recognizing and managing renal complications in SS patients.
- The successful treatment regimen provides a potential therapeutic approach for similar rare cases.
- Further research into the pathogenesis and optimal management of SS-associated MPGN is warranted.
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