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Serologic issues in IgG4-related systemic disease and autoimmune pancreatitis

Sah, Raghuwansh P, Chari, Suresh T·2011·Current Opinion in Rheumatology

Abstract

PURPOSE OF REVIEW: IgG4-related systemic disease (ISD) is a recently recognized syndrome affecting multiple organs. Autoimmune pancreatitis (AIP) is the pancreatic manifestation of ISD and mimics pancreatic cancer. Current data show frequent association with serum IgG4 elevation and other serologic abnormalities. Here we explore the diagnostic and possible prognostic utility and pathogenetic implications of serologic abnormalities in ISD. RECENT FINDINGS: Serum IgG4 elevations (>140 mg/dl) are seen in 70-80% of AIP patients and also in 5% of normal population and 10% of pancreatic cancer making it an unsuitable single marker for diagnosis. However, when combined with other features of AIP, it can be of great diagnostic value though its utility in monitoring of therapy or as a marker or predictor of relapse is limited. Several other antibodies have been identified in AIP against pancreas-specific antigens like trypsinogens I and II, pancreatic secretory trypsin inhibitor (PSTI) and plasminogen binding protein (PBP) and other nonpancreas-specific antigens. Anti-PBP antibodies appear to have potential diagnostic utility but require further validation. SUMMARY: No single serologic marker is diagnostic of ISD. Serum IgG4 elevation has convincing diagnostic utility when combined with other disease features although its value in disease monitoring may be limited.

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Metadata

Authors
Sah, R. P., & Chari, S. T.
Venue
Current Opinion in Rheumatology
Published
2011-01
Volume
23
Issue
1
Pages
108-113
ISSN
1040-8711 (ISSN-L)
OpenAlex
W2327278694
Cited by
340
References
51
FWCI
12.65
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Serologic issues in IgG4-related systemic disease and autoimmune pancreatitis. https://app.cochat.ai/papers/10.1097/bor.0b013e3283413469
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Sah, R. P., & Chari, S. T. (2011). Serologic issues in IgG4-related systemic disease and autoimmune pancreatitis. Current Opinion in Rheumatology. https://doi.org/10.1097/bor.0b013e3283413469

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