Language
English
Publication Date
1-1-2025
Journal
Nephron
DOI
10.1159/000542414
PMID
39496248
PMCID
PMC11991716
PubMedCentral® Posted Date
11-4-2024
PubMedCentral® Full Text Version
Post-print
Abstract
Introduction: IgG4-related disease (IgG4-RD) is an immune-mediated fibroinflammatory disease that can affect nearly every organ system, including blood vessels and the kidney. IgG4-related vascular lesions mainly involve the aorta, and the dominant renal manifestation is tubulointerstitial nephritis (TIN). Here, we report a case of IgG4-RD demonstrating extensive abdominal periarteritis and membranous nephropathy (MN).
Case presentation: The patient was a 71-year-old man with peptic ulcer who developed nephrotic syndrome, with a low serum albumin level (1.8 g/dL), massive urinary protein (6.1 g/day), and high serum IgG4 level (435 mg/dL). Computed tomography images revealed soft tissue mass around the medium-sized abdominal arteries. Renal pathological findings showed MN and focal infiltration of numerous IgG4-positive cells in the interstitium. The findings of high serum IgG4 levels, periarteritis, and focal inflammation with rich IgG4-positive plasma cells led to the diagnosis of IgG4-RD. We chose low-dose steroid therapy to prevent the recurrence of the peptic ulcer and aneurysm formation in the affected arteries, which can occur with medium to high doses of prednisolone. We successfully controlled IgG4-related periarteritis and kidney disease without relapse or complications.
Conclusion: The varied clinical manifestations of IgG4-RD sometimes make the diagnosis challenging. However, clinicians should diagnose IgG4-RD based on serological, radiological, and pathological evaluations because, without appropriate therapy, IgG4-RD can lead to irreversible organ failure caused by swelling, obstruction, or fibrosis of the organs.
Keywords
Humans, Male, Aged, Glomerulonephritis, Membranous, Immunoglobulin G4-Related Disease, Prednisolone, Arteritis, Immunoglobulin G, Steroids, Recurrence, Abdomen, IgG4-related disease, IgG4-related kidney disease, Periarteritis, Membranous nephropathy
Published Open-Access
yes
Recommended Citation
Matsumoto, Minami; Yamamoto, Shinya; Yokoi, Hideki; et al., "A Case of IgG4-Related Disease Manifesting as Extensive Abdominal Periarteritis and Membranous Nephropathy, Successfully Controlled with Low-Dose Steroid Therapy without Relapse or Complications" (2025). Faculty, Staff and Students Publications. 8723.
https://digitalcommons.library.tmc.edu/baylor_docs/8723