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Best Pract Res Clin Rheumatol. 2012 Aug;26(4):425-38. doi: 10.1016/j.berh.2012.07.001.

IgG4-related diseases.

Author information

1
Division of Rheumatology, Allergy and Immunology, UC San Diego, School of Medicine, La Jolla, CA, USA. mguma@ucsd.edu

Abstract

Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a fascinating condition recognised as a systemic disease in 2003 [1,2]. The first link between autoimmunity affecting the pancreas, elevated serum IgG4 concentrations and large numbers of IgG4-positive plasma cells in pancreatic tissue was described only 2 years earlier [3]. Since then, many diseases that have long been viewed organ-specific are now considered within the spectrum of IgG4-RD. Practically any organ can be affected, having in common a key pathological feature consisting in dense lymphocyte and plasma cell infiltrate rich in IgG4-positive plasma cells, storiform fibrosis and often an elevated serum IgG4 concentration. While good clinical response to steroid therapy is observed, immunosuppressive or B-cell depleting therapy can be required. It is important to distinguish the IgG4-RD from traditional organ-specific autoimmune disease to guide therapy.

PMID:
23040358
DOI:
10.1016/j.berh.2012.07.001
[Indexed for MEDLINE]

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