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Published on: September 26, 2012
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[IgG4-related disease: about 3 cases]
Hakima Abid1, Moulaye El Hacen Horma Babana El Alaoui1, Moulay Youssef Alaoui Lamrani2,3
1Service d´Hépato-Gastro-Entérologie, Centre Hospitalier Universitaire Hassan II, Fès, Maroc.
The Pan African Medical Journal
|November 25, 2020
Summary
Immunoglobulin G4-related disease (IgG4-RD) affects multiple organs and is diagnosed via histology. Corticosteroids are effective, but relapses necessitate immunomodulators like rituximab.
Area of Science:
- Rheumatology
- Immunology
- Pathology
Background:
- Immunoglobulin G4-related disease (IgG4-RD) is a newly recognized condition affecting various organs, with unknown incidence and prevalence.
- It predominantly affects men over 50 and is more common in Asia.
Observation:
- Diagnosis relies on characteristic histological findings including lymphoplasmacytic infiltration, IgG4-positive plasma cells, fibrosis, and obliterating venulitis.
- Elevated serum IgG4 levels are observed in over 80% of cases.
Findings:
- Patients respond well to corticosteroids, but high relapse rates prompt the use of immunomodulators such as thiopurines, methotrexate, and rituximab.
- Rituximab is increasingly used for induction therapy.
Implications:
- Accurate diagnostic criteria aid in avoiding inappropriate treatments like surgery.
- Further research is needed on pathophysiology, biomarkers, disease natural history, long-term cancer risk, and diagnostic tool performance.
- Consensual international management guidelines are required for early disease stages and recurrences.
