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Membranous nephropathy. Its association with multicentric angiofollicular lymph node hyperplasia
Archives of Pathology & Laboratory Medicine
|October 1, 1979
Summary
Multicentric angiofollicular lymph node hyperplasia, a plasma cell disorder, was linked to nephrotic syndrome in a patient with Epstein-Barr virus reactivation. This suggests chronic immune stimulation may underlie both conditions.
Area of Science:
- Immunology
- Nephrology
- Pathology
Background:
- Multicentric angiofollicular lymph node hyperplasia (AFL) is a rare lymphoproliferative disorder.
- Plasma cell type AFL can present with systemic manifestations.
- Membranous nephropathy (MN) is a common cause of nephrotic syndrome in adults.
Observation:
- A 51-year-old man developed plasma cell type AFL with systemic symptoms.
- One year later, he presented with nephrotic syndrome due to immune complex-mediated MN.
- Elevated Epstein-Barr virus (EBV) titers indicated a possible latent infection reactivation.
Findings:
- The case demonstrates a temporal association between AFL and MN.
- Immune complex deposition characteristic of MN was observed.
- The patient's condition was managed conservatively.
Implications:
- This association supports the hypothesis that AFL results from chronic immune stimulation by an antigen.
- EBV reactivation may play a role in the pathogenesis of AFL and associated MN.
- Further research is warranted to elucidate the immunopathogenesis of AFL and its renal manifestations.